private void PopulateStreamFormat()
{
bool readable = Pylon.DeviceFeatureIsReadable(deviceHandle, "PixelFormat");
if (!readable)
{
cmbFormat.Enabled = false;
return;
}
string currentValue = Pylon.DeviceFeatureToString(deviceHandle, "PixelFormat");
List <StreamFormat> streamFormats = PylonHelper.GetSupportedStreamFormats(deviceHandle);
if (streamFormats == null)
{
cmbFormat.Enabled = false;
return;
}
foreach (StreamFormat streamFormat in streamFormats)
{
cmbFormat.Items.Add(streamFormat);
if (currentValue == streamFormat.Symbol)
{
selectedStreamFormat = streamFormat;
cmbFormat.SelectedIndex = cmbFormat.Items.Count - 1;
}
}
}
private void PopulateStreamFormat()
{
lblColorSpace.Text = CameraLang.FormConfiguration_Properties_StreamFormat;
bool readable = Pylon.DeviceFeatureIsReadable(deviceHandle, "PixelFormat");
if (!readable)
{
cmbFormat.Enabled = false;
return;
}
string currentValue = Pylon.DeviceFeatureToString(deviceHandle, "PixelFormat");
List <GenApiEnum> streamFormats = PylonHelper.ReadEnum(deviceHandle, "PixelFormat");
if (streamFormats == null)
{
cmbFormat.Enabled = false;
return;
}
foreach (GenApiEnum streamFormat in streamFormats)
{
cmbFormat.Items.Add(streamFormat);
if (currentValue == streamFormat.Symbol)
{
selectedStreamFormat = streamFormat;
cmbFormat.SelectedIndex = cmbFormat.Items.Count - 1;
}
}
}
/*
* Regardless of the parameter's type, any parameter value can be retrieved as a string. Likewise, each parameter
* can be set by passing in a string. This function illustrates how to set and get the
* Width parameter as a string. As demonstrated above, the Width parameter is of the integer type.
*/
private static void demonstrateFromStringToString(PYLON_DEVICE_HANDLE hDev)
{
string featureName = "Width"; /* The name of the feature. */
string value;
/* Get the value of a feature as a string. */
value = Pylon.DeviceFeatureToString(hDev, featureName);
Console.WriteLine("{0}: {1}", featureName, value);
/* A feature can be set as a string using the PylonDeviceFeatureFromString() function.
* If the content of a string can not be converted to the type of the feature, an
* error is returned. */
try
{
Pylon.DeviceFeatureFromString(hDev, featureName, "fourty-two"); /* Cannot be converted to an integer. */
}
catch (Exception e)
{
/* Retrieve the error message. */
string msg = GenApi.GetLastErrorMessage() + "\n" + GenApi.GetLastErrorDetail();
Console.WriteLine("Exception caught:");
Console.WriteLine(e.Message);
if (msg != "\n")
{
Console.WriteLine("Last error message:");
Console.WriteLine(msg);
}
}
}
/// <summary>
/// Configure device and report frame format that will be used during streaming.
/// This method must return a proper ImageDescriptor so we can pre-allocate buffers.
/// </summary>
public ImageDescriptor Prepare()
{
Open();
if (deviceHandle == null || !deviceHandle.IsValid)
{
return(ImageDescriptor.Invalid);
}
firstOpen = false;
// Get the configured framerate for recording support.
if (Pylon.DeviceFeatureIsReadable(deviceHandle, "ResultingFrameRateAbs"))
{
resultingFramerate = (float)Pylon.DeviceGetFloatFeature(deviceHandle, "ResultingFrameRateAbs");
}
else if (Pylon.DeviceFeatureIsReadable(deviceHandle, "ResultingFrameRate"))
{
resultingFramerate = (float)Pylon.DeviceGetFloatFeature(deviceHandle, "ResultingFrameRate");
}
SpecificInfo specific = summary.Specific as SpecificInfo;
string streamFormatSymbol = specific.StreamFormat;
bool hasWidth = Pylon.DeviceFeatureIsReadable(deviceHandle, "Width");
bool hasHeight = Pylon.DeviceFeatureIsReadable(deviceHandle, "Height");
bool hasPixelFormat = Pylon.DeviceFeatureIsReadable(deviceHandle, "PixelFormat");
bool canComputeImageDescriptor = hasWidth && hasHeight && hasPixelFormat;
if (!canComputeImageDescriptor)
{
return(ImageDescriptor.Invalid);
}
int width = (int)Pylon.DeviceGetIntegerFeature(deviceHandle, "Width");
int height = (int)Pylon.DeviceGetIntegerFeature(deviceHandle, "Height");
string pixelFormat = Pylon.DeviceFeatureToString(deviceHandle, "PixelFormat");
// Note: the image provider will perform the Bayer conversion itself and only output two formats.
// - Y800 for anything monochrome.
// - RGB32 for anything color.
EPylonPixelType pixelType = Pylon.PixelTypeFromString(pixelFormat);
if (pixelType == EPylonPixelType.PixelType_Undefined)
{
return(ImageDescriptor.Invalid);
}
bool monochrome = Pylon.IsMono(pixelType) && !Pylon.IsBayer(pixelType);
ImageFormat format = monochrome ? format = ImageFormat.Y800 : ImageFormat.RGB32;
int bufferSize = ImageFormatHelper.ComputeBufferSize(width, height, format);
bool topDown = true;
return(new ImageDescriptor(format, width, height, topDown, bufferSize));
}
/// <summary>
/// Get camera config
/// </summary>
/// <param name="device">camera device</param>
/// <param name="featureName">feature name</param>
/// <returns>feature value</returns>
private string GetConfig(PYLON_DEVICE_HANDLE device, string featureName)
{
string value = string.Empty;
try
{
value = Pylon.DeviceFeatureToString(device, featureName);
}
catch (Exception ex)
{
throw ex;
}
return(value);
}
const uint GIGE_PROTOCOL_OVERHEAD = 36; /* Total number of bytes of protocol overhead. */
static void Main(string[] args)
{
PYLON_DEVICE_HANDLE[] hDev = new PYLON_DEVICE_HANDLE[NUM_DEVICES]; /* Handles for the pylon devices. */
for (int deviceIndex = 0; deviceIndex < NUM_DEVICES; ++deviceIndex)
{
hDev[deviceIndex] = new PYLON_DEVICE_HANDLE();
}
try
{
uint numDevicesAvail; /* Number of the available devices. */
bool isAvail; /* Used for checking feature availability. */
bool isReady; /* Used as an output parameter. */
int i; /* Counter. */
int deviceIndex; /* Index of device used in the following variables. */
PYLON_WAITOBJECTS_HANDLE wos; /* Wait objects. */
int nGrabs; /* Counts the number of grab iterations. */
PYLON_WAITOBJECT_HANDLE woTimer; /* Timer wait object. */
/* These are camera specific variables: */
PYLON_STREAMGRABBER_HANDLE[] hGrabber = new PYLON_STREAMGRABBER_HANDLE[NUM_DEVICES]; /* Handle for the pylon stream grabber. */
PYLON_WAITOBJECT_HANDLE[] hWait = new PYLON_WAITOBJECT_HANDLE[NUM_DEVICES]; /* Handle used for waiting for a grab to be finished. */
uint[] payloadSize = new uint[NUM_DEVICES]; /* Size of an image frame in bytes. */
PylonGrabResult_t[] grabResult = new PylonGrabResult_t[NUM_DEVICES]; /* Stores the result of a grab operation. */
uint[] nStreams = new uint[NUM_DEVICES]; /* The number of streams provided by the device. */
Dictionary <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> >[] buffers = new Dictionary <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> > [NUM_DEVICES]; /* Holds handles and buffers used for grabbing. */
#if DEBUG
/* This is a special debug setting needed only for GigE cameras.
* See 'Building Applications with pylon' in the Programmer's Guide. */
Environment.SetEnvironmentVariable("PYLON_GIGE_HEARTBEAT", "300000" /*ms*/);
#endif
/* Before using any pylon methods, the pylon runtime must be initialized. */
Pylon.Initialize();
/* Enumerate all camera devices. You must call
* PylonEnumerateDevices() before creating a device. */
numDevicesAvail = Pylon.EnumerateDevices();
if (numDevicesAvail < NUM_DEVICES)
{
Console.Error.WriteLine("Found {0} devices. At least {1} devices needed to run this sample.", numDevicesAvail, NUM_DEVICES);
throw new Exception("Not enough devices found.");
}
/* Create wait objects. This must be done outside of the loop. */
wos = Pylon.WaitObjectsCreate();
/* In this sample, we want to grab for a given amount of time, then stop.
* Create a timer that tiggers an AutoResetEvent, wrap the AutoResetEvent in a pylon C.NET wait object, and add it to
* the wait object set. */
AutoResetEvent timoutEvent = new AutoResetEvent(false); /* The timeout event to wait for. */
TimerCallbackWrapper timerCallbackWrapper = new TimerCallbackWrapper(timoutEvent); /* Receives the timer callback and sets the timeout event. */
Timer timer = new Timer(timerCallbackWrapper.TimerCallback); /* The timeout timer. */
woTimer = Pylon.WaitObjectFromW32(timoutEvent.SafeWaitHandle, true);
Pylon.WaitObjectsAdd(wos, woTimer);
/* Open cameras and set parameters. */
for (deviceIndex = 0; deviceIndex < NUM_DEVICES; ++deviceIndex)
{
/* Get handles for the devices. */
hDev[deviceIndex] = Pylon.CreateDeviceByIndex((uint)deviceIndex);
/* Before using the device, it must be opened. Open it for configuring
* parameters and for grabbing images. */
Pylon.DeviceOpen(hDev[deviceIndex], Pylon.cPylonAccessModeControl | Pylon.cPylonAccessModeStream);
/* Print out the name of the camera we are using. */
{
bool isReadable = Pylon.DeviceFeatureIsReadable(hDev[deviceIndex], "DeviceModelName");
if (isReadable)
{
string name = Pylon.DeviceFeatureToString(hDev[deviceIndex], "DeviceModelName");
Console.WriteLine("Using camera '{0}'", name);
}
}
/* Set the pixel format to Mono8, where gray values will be output as 8 bit values for each pixel. */
/* ... Check first to see if the device supports the Mono8 format. */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev[deviceIndex], "EnumEntry_PixelFormat_Mono8");
if (!isAvail)
{
/* Feature is not available. */
throw new Exception("Device doesn't support the Mono8 pixel format.");
}
/* ... Set the pixel format to Mono8. */
Pylon.DeviceFeatureFromString(hDev[deviceIndex], "PixelFormat", "Mono8");
/* Disable acquisition start trigger if available */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev[deviceIndex], "EnumEntry_TriggerSelector_AcquisitionStart");
if (isAvail)
{
Pylon.DeviceFeatureFromString(hDev[deviceIndex], "TriggerSelector", "AcquisitionStart");
Pylon.DeviceFeatureFromString(hDev[deviceIndex], "TriggerMode", "Off");
}
/* Disable frame burst start trigger if available */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev[deviceIndex], "EnumEntry_TriggerSelector_FrameBurstStart");
if (isAvail)
{
Pylon.DeviceFeatureFromString(hDev[deviceIndex], "TriggerSelector", "FrameBurstStart");
Pylon.DeviceFeatureFromString(hDev[deviceIndex], "TriggerMode", "Off");
}
/* Disable frame start trigger if available */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev[deviceIndex], "EnumEntry_TriggerSelector_FrameStart");
if (isAvail)
{
Pylon.DeviceFeatureFromString(hDev[deviceIndex], "TriggerSelector", "FrameStart");
Pylon.DeviceFeatureFromString(hDev[deviceIndex], "TriggerMode", "Off");
}
/* We will use the Continuous frame mode, i.e., the camera delivers
* images continuously. */
Pylon.DeviceFeatureFromString(hDev[deviceIndex], "AcquisitionMode", "Continuous");
PYLON_DEVICE_INFO_HANDLE hDi = Pylon.GetDeviceInfoHandle((uint)deviceIndex);
string deviceClass = Pylon.DeviceInfoGetPropertyValueByName(hDi, Pylon.cPylonDeviceInfoDeviceClassKey);
if (deviceClass == "BaslerGigE")
{
/* For GigE cameras, we recommend increasing the packet size for better
* performance. When the network adapter supports jumbo frames, set the packet
* size to a value > 1500, e.g., to 8192. In this sample, we only set the packet size
* to 1500.
*
* We also set the Inter-Packet and the Frame Transmission delay
* so the switch can line up packets better.
*/
Pylon.DeviceSetIntegerFeature(hDev[deviceIndex], "GevSCPSPacketSize", GIGE_PACKET_SIZE);
Pylon.DeviceSetIntegerFeature(hDev[deviceIndex], "GevSCPD", (GIGE_PACKET_SIZE + GIGE_PROTOCOL_OVERHEAD) * (NUM_DEVICES - 1));
Pylon.DeviceSetIntegerFeature(hDev[deviceIndex], "GevSCFTD", (GIGE_PACKET_SIZE + GIGE_PROTOCOL_OVERHEAD) * deviceIndex);
}
else if (deviceClass == "Basler1394")
{
/* For FireWire we just set the PacketSize node to limit the bandwidth we're using. */
/* We first divide the available bandwidth (4915 for FW400, 9830 for FW800)
* by the number of devices we are using. */
long newPacketSize = 4915 / NUM_DEVICES;
long recommendedPacketSize = 0;
/* Get the recommended packet size from the camera. */
recommendedPacketSize = Pylon.DeviceGetIntegerFeature(hDev[deviceIndex], "RecommendedPacketSize");
if (newPacketSize < recommendedPacketSize)
{
/* Get the increment value for the packet size.
* We must make sure that the new value we're setting is divisible by the increment of that feature. */
long packetSizeInc = 0;
packetSizeInc = Pylon.DeviceGetIntegerFeatureInc(hDev[deviceIndex], "PacketSize");
/* Adjust the new packet size so is divisible by its increment. */
newPacketSize -= newPacketSize % packetSizeInc;
}
else
{
/* The recommended packet size should always be valid. No need to check against the increment. */
newPacketSize = recommendedPacketSize;
}
/* Set the new packet size. */
Pylon.DeviceSetIntegerFeature(hDev[deviceIndex], "PacketSize", newPacketSize);
Console.WriteLine("Using packetsize: {0}", newPacketSize);
}
}
/* Allocate and register buffers for grab. */
for (deviceIndex = 0; deviceIndex < NUM_DEVICES; ++deviceIndex)
{
/* Determine the required size for the grab buffer. */
payloadSize[deviceIndex] = checked ((uint)Pylon.DeviceGetIntegerFeature(hDev[deviceIndex], "PayloadSize"));
/* Image grabbing is done using a stream grabber.
* A device may be able to provide different streams. A separate stream grabber must
* be used for each stream. In this sample, we create a stream grabber for the default
* stream, i.e., the first stream ( index == 0 ).
*/
/* Get the number of streams supported by the device and the transport layer. */
nStreams[deviceIndex] = Pylon.DeviceGetNumStreamGrabberChannels(hDev[deviceIndex]);
if (nStreams[deviceIndex] < 1)
{
throw new Exception("The transport layer doesn't support image streams.");
}
/* Create and open a stream grabber for the first channel. */
hGrabber[deviceIndex] = Pylon.DeviceGetStreamGrabber(hDev[deviceIndex], 0);
Pylon.StreamGrabberOpen(hGrabber[deviceIndex]);
/* Get a handle for the stream grabber's wait object. The wait object
* allows waiting for buffers to be filled with grabbed data. */
hWait[deviceIndex] = Pylon.StreamGrabberGetWaitObject(hGrabber[deviceIndex]);
/* Add the stream grabber's wait object to our wait objects.
* This is needed to be able to wait until all cameras have
* grabbed an image in our grab loop below. */
Pylon.WaitObjectsAdd(wos, hWait[deviceIndex]);
/* We must tell the stream grabber the number and size of the buffers
* we are using. */
/* .. We will not use more than NUM_BUFFERS for grabbing. */
Pylon.StreamGrabberSetMaxNumBuffer(hGrabber[deviceIndex], NUM_BUFFERS);
/* .. We will not use buffers bigger than payloadSize bytes. */
Pylon.StreamGrabberSetMaxBufferSize(hGrabber[deviceIndex], payloadSize[deviceIndex]);
/* Allocate the resources required for grabbing. After this, critical parameters
* that impact the payload size must not be changed until FinishGrab() is called. */
Pylon.StreamGrabberPrepareGrab(hGrabber[deviceIndex]);
/* Before using the buffers for grabbing, they must be registered at
* the stream grabber. For each registered buffer, a buffer handle
* is returned. After registering, these handles are used instead of the
* buffer objects pointers. The buffer objects are held in a dictionary,
* that provides access to the buffer using a handle as key.
*/
buffers[deviceIndex] = new Dictionary <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> >();
for (i = 0; i < NUM_BUFFERS; ++i)
{
PylonBuffer <Byte> buffer = new PylonBuffer <byte>(payloadSize[deviceIndex], true);
PYLON_STREAMBUFFER_HANDLE handle = Pylon.StreamGrabberRegisterBuffer(hGrabber[deviceIndex], ref buffer);
buffers[deviceIndex].Add(handle, buffer);
}
/* Feed the buffers into the stream grabber's input queue. For each buffer, the API
* allows passing in an integer as additional context information. This integer
* will be returned unchanged when the grab is finished. In our example, we use the index of the
* buffer as context information. */
i = 0;
foreach (KeyValuePair <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> > pair in buffers[deviceIndex])
{
Pylon.StreamGrabberQueueBuffer(hGrabber[deviceIndex], pair.Key, i++);
}
}
/* The stream grabber is now prepared. As soon the camera starts acquiring images,
* the image data will be grabbed into the provided buffers. */
for (deviceIndex = 0; deviceIndex < NUM_DEVICES; ++deviceIndex)
{
/* Let the camera acquire images. */
Pylon.DeviceExecuteCommandFeature(hDev[deviceIndex], "AcquisitionStart");
}
/* Set the timer to 5 s and start it. */
timer.Change(5000, Timeout.Infinite);
/* Counts the number of grabbed images. */
nGrabs = 0;
/* Grab until the timer expires. */
for (;;)
{
int bufferIndex; /* Index of the buffer. */
Byte min, max;
uint woIndex;
/* Wait for the next buffer to be filled. Wait up to 1000 ms. */
isReady = Pylon.WaitObjectsWaitForAny(wos, 1000, out woIndex);
if (!isReady)
{
/* Timeout occurred. */
throw new Exception("Grab timeout occurred.");
}
/* If the timer has expired, exit the grab loop. */
if (woIndex == 0)
{
Console.Error.WriteLine("Grabbing completed successfully.");
break; /* Timer expired. */
}
/* Account for the timer. */
--woIndex;
/* Since the wait operation was successful, the result of at least one grab
* operation is available. Retrieve it. */
isReady = Pylon.StreamGrabberRetrieveResult(hGrabber[woIndex], out grabResult[woIndex]);
if (!isReady)
{
/* Oops. No grab result available? We should never have reached this point.
* Since the wait operation above returned without a timeout, a grab result
* should be available. */
throw new Exception("Failed to retrieve a grab result.");
}
/* Get the buffer index from the context information. */
bufferIndex = grabResult[woIndex].Context;
/* Check to see if the image was grabbed successfully. */
if (grabResult[woIndex].Status == EPylonGrabStatus.Grabbed)
{
/* Success. Perform image processing. Since we passed more than one buffer
* to the stream grabber, the remaining buffers are filled in the background while
* we do the image processing. The processed buffer won't be touched by
* the stream grabber until we pass it back to the stream grabber. */
PylonBuffer <Byte> buffer; /* Reference to the buffer attached to the grab result. */
/* Get the buffer from the dictionary. Since we also got the buffer index,
* we could alternatively use an array, e.g. buffers[bufferIndex]. */
if (!buffers[woIndex].TryGetValue(grabResult[woIndex].hBuffer, out buffer))
{
/* Oops. No buffer available? We should never have reached this point. Since all buffers are
* in the dictionary. */
throw new Exception("Failed to find the buffer associated with the handle returned in grab result.");
}
/* Perform processing. */
getMinMax(buffer.Array, grabResult[woIndex].SizeX, grabResult[woIndex].SizeY, out min, out max);
Console.WriteLine("Grabbed frame {0} from camera {1} into buffer {2}. Min. val={3}, Max. val={4}",
nGrabs, woIndex, bufferIndex, min, max);
/* Display image */
Pylon.ImageWindowDisplayImage <Byte>(woIndex, buffer, grabResult[woIndex]);
}
else if (grabResult[woIndex].Status == EPylonGrabStatus.Failed)
{
Console.Error.WriteLine("Frame {0} wasn't grabbed successfully. Error code = {1}",
nGrabs, grabResult[woIndex].ErrorCode);
}
/* Once finished with the processing, requeue the buffer to be filled again. */
Pylon.StreamGrabberQueueBuffer(hGrabber[woIndex], grabResult[woIndex].hBuffer, bufferIndex);
nGrabs++;
}
/* Clean up. */
/* Stop the image aquisition on the cameras. */
for (deviceIndex = 0; deviceIndex < NUM_DEVICES; ++deviceIndex)
{
/* ... Stop the camera. */
Pylon.DeviceExecuteCommandFeature(hDev[deviceIndex], "AcquisitionStop");
}
// Remove all wait objects from WaitObjects.
Pylon.WaitObjectsRemoveAll(wos);
Pylon.WaitObjectDestroy(woTimer);
Pylon.WaitObjectsDestroy(wos);
for (deviceIndex = 0; deviceIndex < NUM_DEVICES; ++deviceIndex)
{
/* ... We must issue a cancel call to ensure that all pending buffers are put into the
* stream grabber's output queue. */
Pylon.StreamGrabberCancelGrab(hGrabber[deviceIndex]);
/* ... The buffers can now be retrieved from the stream grabber. */
do
{
isReady = Pylon.StreamGrabberRetrieveResult(hGrabber[deviceIndex], out grabResult[deviceIndex]);
} while (isReady);
/* ... When all buffers are retrieved from the stream grabber, they can be deregistered.
* After deregistering the buffers, it is safe to free the memory. */
foreach (KeyValuePair <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> > pair in buffers[deviceIndex])
{
Pylon.StreamGrabberDeregisterBuffer(hGrabber[deviceIndex], pair.Key);
pair.Value.Dispose();
}
buffers[deviceIndex] = null;
/* ... Release grabbing related resources. */
Pylon.StreamGrabberFinishGrab(hGrabber[deviceIndex]);
/* After calling PylonStreamGrabberFinishGrab(), parameters that impact the payload size (e.g.,
* the AOI width and height parameters) are unlocked and can be modified again. */
/* ... Close the stream grabber. */
Pylon.StreamGrabberClose(hGrabber[deviceIndex]);
/* ... Close and release the pylon device. The stream grabber becomes invalid
* after closing the pylon device. Don't call stream grabber related methods after
* closing or releasing the device. */
Pylon.DeviceClose(hDev[deviceIndex]);
Pylon.DestroyDevice(hDev[deviceIndex]);
}
/* Dispose timer and event. */
timer.Dispose();
timoutEvent.Close();
Console.Error.WriteLine("\nPress enter to exit.");
Console.ReadLine();
/* ... Shut down the pylon runtime system. Don't call any pylon function after
* calling PylonTerminate(). */
Pylon.Terminate();
}
catch (Exception e)
{
/* Retrieve the error message. */
string msg = GenApi.GetLastErrorMessage() + "\n" + GenApi.GetLastErrorDetail();
Console.Error.WriteLine("Exception caught:");
Console.Error.WriteLine(e.Message);
if (msg != "\n")
{
Console.Error.WriteLine("Last error message:");
Console.Error.WriteLine(msg);
}
for (uint deviceIndex = 0; deviceIndex < NUM_DEVICES; ++deviceIndex)
{
try
{
if (hDev[deviceIndex].IsValid)
{
/* ... Close and release the pylon device. */
if (Pylon.DeviceIsOpen(hDev[deviceIndex]))
{
Pylon.DeviceClose(hDev[deviceIndex]);
}
Pylon.DestroyDevice(hDev[deviceIndex]);
}
}
catch (Exception)
{
/*No further handling here.*/
}
}
Pylon.Terminate(); /* Releases all pylon resources. */
Console.Error.WriteLine("\nPress enter to exit.");
Console.ReadLine();
Environment.Exit(1);
}
}
int i; /* Counter. */
public void PylonC_Open()
{
#if Local_Variables
PYLON_DEVICE_HANDLE hDev = new PYLON_DEVICE_HANDLE(); /* Handle for the pylon device. */
#endif
try
{
#if Local_Variables
uint numDevices; /* Number of available devices. */
PYLON_STREAMGRABBER_HANDLE hGrabber; /* Handle for the pylon stream grabber. */
PYLON_WAITOBJECT_HANDLE hWait; /* Handle used for waiting for a grab to be finished. */
uint payloadSize; /* Size of an image frame in bytes. */
Dictionary <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> > buffers; /* Holds handles and buffers used for grabbing. */
PylonGrabResult_t grabResult; /* Stores the result of a grab operation. */
int nGrabs; /* Counts the number of buffers grabbed. */
uint nStreams; /* The number of streams provides by the device. */
bool isAvail; /* Used for checking feature availability. */
bool isReady; /* Used as an output parameter. */
int i; /* Counter. */
#endif
#if DEBUG
/* This is a special debug setting needed only for GigE cameras.
* See 'Building Applications with pylon' in the programmer's guide. */
Environment.SetEnvironmentVariable("PYLON_GIGE_HEARTBEAT", "300000" /*ms*/);
#endif
/* Before using any pylon methods, the pylon runtime must be initialized. */
Pylon.Initialize();
/* Enumerate all camera devices. You must call
* PylonEnumerateDevices() before creating a device. */
numDevices = Pylon.EnumerateDevices();
if (0 == numDevices)
{
throw new Exception("No devices found.");
}
/* Get a handle for the first device found. */
hDev = Pylon.CreateDeviceByIndex(0);
/* Before using the device, it must be opened. Open it for configuring
* parameters and for grabbing images. */
Pylon.DeviceOpen(hDev, Pylon.cPylonAccessModeControl | Pylon.cPylonAccessModeStream);
/* Print out the name of the camera we are using. */
{
bool isReadable = Pylon.DeviceFeatureIsReadable(hDev, "DeviceModelName");
if (isReadable)
{
string name = Pylon.DeviceFeatureToString(hDev, "DeviceModelName");
Console.WriteLine("Using camera {0}.", name);
}
}
/* Set the pixel format to Mono8, where gray values will be output as 8 bit values for each pixel. */
/* ... Check first to see if the device supports the Mono8 format. */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_PixelFormat_YUV422Packed");
if (!isAvail)
{
/* Feature is not available. */
throw new Exception("Device doesn't support the Mono8/YUV422Packed pixel format.");
}
/* ... Set the pixel format to Mono8. */
Pylon.DeviceFeatureFromString(hDev, "PixelFormat", "YUV422Packed");
/* Disable acquisition start trigger if available */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_TriggerSelector_AcquisitionStart");
if (isAvail)
{
Pylon.DeviceFeatureFromString(hDev, "TriggerSelector", "AcquisitionStart");
Pylon.DeviceFeatureFromString(hDev, "TriggerMode", "Off");
}
/* Disable frame burst start trigger if available */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_TriggerSelector_FrameBurstStart");
if (isAvail)
{
Pylon.DeviceFeatureFromString(hDev, "TriggerSelector", "FrameBurstStart");
Pylon.DeviceFeatureFromString(hDev, "TriggerMode", "Off");
}
/* Disable frame start trigger if available */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_TriggerSelector_FrameStart");
if (isAvail)
{
Pylon.DeviceFeatureFromString(hDev, "TriggerSelector", "FrameStart");
Pylon.DeviceFeatureFromString(hDev, "TriggerMode", "Off");
}
/* We will use the Continuous frame mode, i.e., the camera delivers
* images continuously. */
Pylon.DeviceFeatureFromString(hDev, "AcquisitionMode", "Continuous");
/* For GigE cameras, we recommend increasing the packet size for better
* performance. When the network adapter supports jumbo frames, set the packet
* size to a value > 1500, e.g., to 8192. In this sample, we only set the packet size
* to 1500. */
/* ... Check first to see if the GigE camera packet size parameter is supported and if it is writable. */
isAvail = Pylon.DeviceFeatureIsWritable(hDev, "GevSCPSPacketSize");
if (isAvail)
{
/* ... The device supports the packet size feature. Set a value. */
Pylon.DeviceSetIntegerFeature(hDev, "GevSCPSPacketSize", 1500);
}
/* Determine the required size of the grab buffer. */
payloadSize = checked ((uint)Pylon.DeviceGetIntegerFeature(hDev, "PayloadSize"));
/* Image grabbing is done using a stream grabber.
* A device may be able to provide different streams. A separate stream grabber must
* be used for each stream. In this sample, we create a stream grabber for the default
* stream, i.e., the first stream ( index == 0 ).
*/
/* Get the number of streams supported by the device and the transport layer. */
nStreams = Pylon.DeviceGetNumStreamGrabberChannels(hDev);
if (nStreams < 1)
{
throw new Exception("The transport layer doesn't support image streams.");
}
/* Create and open a stream grabber for the first channel. */
hGrabber = Pylon.DeviceGetStreamGrabber(hDev, 0);
Pylon.StreamGrabberOpen(hGrabber);
/* Get a handle for the stream grabber's wait object. The wait object
* allows waiting for buffers to be filled with grabbed data. */
hWait = Pylon.StreamGrabberGetWaitObject(hGrabber);
/* We must tell the stream grabber the number and size of the buffers
* we are using. */
/* .. We will not use more than NUM_BUFFERS for grabbing. */
Pylon.StreamGrabberSetMaxNumBuffer(hGrabber, NUM_BUFFERS);
/* .. We will not use buffers bigger than payloadSize bytes. */
Pylon.StreamGrabberSetMaxBufferSize(hGrabber, payloadSize);
/* Allocate the resources required for grabbing. After this, critical parameters
* that impact the payload size must not be changed until FinishGrab() is called. */
Pylon.StreamGrabberPrepareGrab(hGrabber);
/* Before using the buffers for grabbing, they must be registered at
* the stream grabber. For each registered buffer, a buffer handle
* is returned. After registering, these handles are used instead of the
* buffer objects pointers. The buffer objects are held in a dictionary,
* that provides access to the buffer using a handle as key.
*/
buffers = new Dictionary <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> >();
for (i = 0; i < NUM_BUFFERS; ++i)
{
PylonBuffer <Byte> buffer = new PylonBuffer <byte>(payloadSize, true);
PYLON_STREAMBUFFER_HANDLE handle = Pylon.StreamGrabberRegisterBuffer(hGrabber, ref buffer);
buffers.Add(handle, buffer);
}
/* Feed the buffers into the stream grabber's input queue. For each buffer, the API
* allows passing in an integer as additional context information. This integer
* will be returned unchanged when the grab is finished. In our example, we use the index of the
* buffer as context information. */
i = 0;
foreach (KeyValuePair <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> > pair in buffers)
{
Pylon.StreamGrabberQueueBuffer(hGrabber, pair.Key, i++);
}
/* The stream grabber is now prepared. As soon the camera starts acquiring images,
* the image data will be grabbed into the provided buffers. */
/* Let the camera acquire images. */
Pylon.DeviceExecuteCommandFeature(hDev, "AcquisitionStart");
/* Grab NUM_GRABS images */
nGrabs = 0; /* Counts the number of grabbed images. */
//while (nGrabs < NUM_GRABS)
while (nGrabs < NUM_GRABS)
{
int bufferIndex; /* Index of the buffer. */
Byte min, max;
/* Wait for the next buffer to be filled. Wait up to 1000 ms. */
isReady = Pylon.WaitObjectWait(hWait, 1000);
if (!isReady)
{
/* Timeout occurred. */
throw new Exception("Grab timeout occurred.");
}
/* Since the wait operation was successful, the result of at least one grab
* operation is available. Retrieve it. */
isReady = Pylon.StreamGrabberRetrieveResult(hGrabber, out grabResult);
if (!isReady)
{
/* Oops. No grab result available? We should never have reached this point.
* Since the wait operation above returned without a timeout, a grab result
* should be available. */
throw new Exception("Failed to retrieve a grab result");
}
nGrabs++;
/* Get the buffer index from the context information. */
bufferIndex = (int)grabResult.Context;
/* Check to see if the image was grabbed successfully. */
if (grabResult.Status == EPylonGrabStatus.Grabbed)
{
/* Success. Perform image processing. Since we passed more than one buffer
* to the stream grabber, the remaining buffers are filled in the background while
* we do the image processing. The processed buffer won't be touched by
* the stream grabber until we pass it back to the stream grabber. */
PylonBuffer <Byte> buffer; /* Reference to the buffer attached to the grab result. */
/* Get the buffer from the dictionary. Since we also got the buffer index,
* we could alternatively use an array, e.g. buffers[bufferIndex]. */
if (!buffers.TryGetValue(grabResult.hBuffer, out buffer))
{
/* Oops. No buffer available? We should never have reached this point. Since all buffers are
* in the dictionary. */
throw new Exception("Failed to find the buffer associated with the handle returned in grab result.");
}
/* Perform processing. */
getMinMax(buffer.Array, grabResult.SizeX, grabResult.SizeY, out min, out max);
Console.WriteLine("Grabbed frame {0} into buffer {1}. Min. gray value = {2}, Max. gray value = {3}",
nGrabs, bufferIndex, min, max);
/* Display image */ //////////////////////////////////////////////////////////////////////////////////////////////////////////////////
WpfApp5.MainWindow.Pylon_Buffer = buffer;
WpfApp5.MainWindow.GrabResult = grabResult;
Console.WriteLine("the contents of buffer: [{0, 10}] in OverlappedGrab Class.", buffer.Array[0]);
Console.WriteLine("the contents of buffer: [{0, 10}] in WpfApp3.MainWindow.Pylon_Buffer.", WpfApp5.MainWindow.Pylon_Buffer.Array[0]);
Pylon.ImageWindowDisplayImage <Byte>(0, buffer, grabResult);
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
}
else if (grabResult.Status == EPylonGrabStatus.Failed)
{
Console.Error.WriteLine("Frame {0} wasn't grabbed successfully. Error code = {1}",
nGrabs, grabResult.ErrorCode);
}
/* Once finished with the processing, requeue the buffer to be filled again. */
Pylon.StreamGrabberQueueBuffer(hGrabber, grabResult.hBuffer, bufferIndex);
}
/* Clean up. */
#if DONT_COMPILE_THESE_CODE
/* ... Stop the camera. */
Pylon.DeviceExecuteCommandFeature(hDev, "AcquisitionStop");
/* ... We must issue a cancel call to ensure that all pending buffers are put into the
* stream grabber's output queue. */
Pylon.StreamGrabberCancelGrab(hGrabber);
/* ... The buffers can now be retrieved from the stream grabber. */
do
{
isReady = Pylon.StreamGrabberRetrieveResult(hGrabber, out grabResult);
} while (isReady);
/* ... When all buffers are retrieved from the stream grabber, they can be deregistered.
* After deregistering the buffers, it is safe to free the memory. */
foreach (KeyValuePair <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> > pair in buffers)
{
Pylon.StreamGrabberDeregisterBuffer(hGrabber, pair.Key);
pair.Value.Dispose();
}
buffers = null;
/* ... Release grabbing related resources. */
Pylon.StreamGrabberFinishGrab(hGrabber);
/* After calling PylonStreamGrabberFinishGrab(), parameters that impact the payload size (e.g.,
* the AOI width and height parameters) are unlocked and can be modified again. */
/* ... Close the stream grabber. */
Pylon.StreamGrabberClose(hGrabber);
/* ... Close and release the pylon device. The stream grabber becomes invalid
* after closing the pylon device. Don't call stream grabber related methods after
* closing or releasing the device. */
Pylon.DeviceClose(hDev);
Pylon.DestroyDevice(hDev);
Console.Error.WriteLine("\nPress enter to exit.");
Console.ReadLine();
/* ... Shut down the pylon runtime system. Don't call any pylon method after
* calling Pylon.Terminate(). */
Pylon.Terminate();
#endif
}
catch (Exception e)
{
/* Retrieve the error message. */
string msg = GenApi.GetLastErrorMessage() + "\n" + GenApi.GetLastErrorDetail();
Console.Error.WriteLine("Exception caught:");
Console.Error.WriteLine(e.Message);
if (msg != "\n")
{
Console.Error.WriteLine("Last error message:");
Console.Error.WriteLine(msg);
}
try
{
if (hDev.IsValid)
{
/* ... Close and release the pylon device. */
if (Pylon.DeviceIsOpen(hDev))
{
Pylon.DeviceClose(hDev);
}
Pylon.DestroyDevice(hDev);
}
}
catch (Exception)
{
/*No further handling here.*/
}
Pylon.Terminate(); /* Releases all pylon resources. */
Console.Error.WriteLine("\nPress enter to exit.");
Console.ReadLine();
Environment.Exit(1);
}
}
/// <summary>
/// Configure device and report frame format that will be used during streaming.
/// This method must return a proper ImageDescriptor so we can pre-allocate buffers.
/// </summary>
public ImageDescriptor Prepare()
{
Open();
if (deviceHandle == null || !deviceHandle.IsValid)
{
return(ImageDescriptor.Invalid);
}
firstOpen = false;
// Get the configured framerate for recording support.
resultingFramerate = PylonHelper.GetResultingFramerate(deviceHandle);
SpecificInfo specific = summary.Specific as SpecificInfo;
string streamFormatSymbol = specific.StreamFormat;
bool hasWidth = Pylon.DeviceFeatureIsReadable(deviceHandle, "Width");
bool hasHeight = Pylon.DeviceFeatureIsReadable(deviceHandle, "Height");
bool hasPixelFormat = Pylon.DeviceFeatureIsReadable(deviceHandle, "PixelFormat");
bool canComputeImageDescriptor = hasWidth && hasHeight && hasPixelFormat;
if (!canComputeImageDescriptor)
{
return(ImageDescriptor.Invalid);
}
int width = (int)Pylon.DeviceGetIntegerFeature(deviceHandle, "Width");
int height = (int)Pylon.DeviceGetIntegerFeature(deviceHandle, "Height");
string pixelFormat = Pylon.DeviceFeatureToString(deviceHandle, "PixelFormat");
EPylonPixelType pixelType = Pylon.PixelTypeFromString(pixelFormat);
if (pixelType == EPylonPixelType.PixelType_Undefined)
{
return(ImageDescriptor.Invalid);
}
// Note: the image provider will perform the Bayer conversion itself and only output two formats.
// - Y800 for anything monochrome.
// - RGB32 for anything color.
imageProvider.SetDebayering(specific.Bayer8Conversion);
bool isBayer = Pylon.IsBayer(pixelType);
bool isBayer8 = PylonHelper.IsBayer8(pixelType);
bool bayerColor = (isBayer && !isBayer8) || (isBayer8 && specific.Bayer8Conversion == Bayer8Conversion.Color);
bool color = !Pylon.IsMono(pixelType) || bayerColor;
ImageFormat format = color ? ImageFormat.RGB32 : ImageFormat.Y800;
finishline.Prepare(width, height, format, resultingFramerate);
if (finishline.Enabled)
{
height = finishline.Height;
resultingFramerate = finishline.ResultingFramerate;
}
int bufferSize = ImageFormatHelper.ComputeBufferSize(width, height, format);
bool topDown = true;
return(new ImageDescriptor(format, width, height, topDown, bufferSize));
}
static void mmMain(string[] args)
{
PYLON_DEVICE_HANDLE hDev = new PYLON_DEVICE_HANDLE(); /* Handle for the pylon device. */
try
{
uint numDevices; /* Number of devices available. */
#if DEBUG
/* This is a special debug setting needed only for GigE cameras.
* See 'Building Applications with pylon' in the programmer's guide. */
Environment.SetEnvironmentVariable("PYLON_GIGE_HEARTBEAT", "300000" /*ms*/);
#endif
/* Before using any pylon methods, the pylon runtime must be initialized. */
Pylon.Initialize();
/* Enumerate all camera devices. You must call
* Pylon.EnumerateDevices() before creating a device. */
numDevices = Pylon.EnumerateDevices();
if (0 == numDevices)
{
throw new Exception("No devices found.");
}
/* Get a handle for the first device found. */
hDev = Pylon.CreateDeviceByIndex(0);
/* Before using the device, it must be opened. Open it for configuring
* parameters and for grabbing images. */
Pylon.DeviceOpen(hDev, Pylon.cPylonAccessModeControl | Pylon.cPylonAccessModeStream);
/* Print out the name of the camera we are using. */
{
bool isReadable;
isReadable = Pylon.DeviceFeatureIsReadable(hDev, "DeviceModelName");
if (isReadable)
{
string name = Pylon.DeviceFeatureToString(hDev, "DeviceModelName");
Console.WriteLine("Using camera {0}", name);
}
}
/* Demonstrate how to check the accessibility of a feature. */
demonstrateAccessibilityCheck(hDev);
Console.WriteLine("");
/* Demonstrate how to handle integer camera parameters. */
demonstrateIntFeature(hDev);
Console.WriteLine("");
/* Demonstrate how to handle floating point camera parameters. */
demonstrateFloatFeature(hDev);
Console.WriteLine("");
/* Demonstrate how to handle boolean camera parameters. */
demonstrateBooleanFeature(hDev);
Console.WriteLine("");
/* Each feature can be read as a string and also set as a string. */
demonstrateFromStringToString(hDev);
Console.WriteLine("");
/* Demonstrate how to handle enumeration camera parameters. */
demonstrateEnumFeature(hDev);
Console.WriteLine("");
/* Demonstrate how to iterate enumeration entries. */
demonstrateEnumIteration(hDev);
Console.WriteLine("");
/* Demonstrate how to execute actions. */
demonstrateCommandFeature(hDev);
Console.WriteLine("");
/* Display category nodes. */
demonstrateCategory(hDev);
/* Clean up. Close and release the pylon device. */
Pylon.DeviceClose(hDev);
Pylon.DestroyDevice(hDev);
/* Shut down the pylon runtime system. Don't call any pylon method after
* calling Pylon.Terminate(). */
Pylon.Terminate();
Console.Error.WriteLine("\nPress enter to exit.");
Console.ReadLine();
}
catch (Exception e)
{
/* Retrieve the error message. */
string msg = GenApi.GetLastErrorMessage() + "" + GenApi.GetLastErrorDetail();
Console.Error.WriteLine("Exception caught:");
Console.Error.WriteLine(e.Message);
if (msg.Length > 0)
{
Console.Error.WriteLine("Last error message:");
Console.Error.WriteLine(msg);
}
try
{
if (hDev.IsValid)
{
/* ... Close and release the pylon device. */
if (Pylon.DeviceIsOpen(hDev))
{
Pylon.DeviceClose(hDev);
}
Pylon.DestroyDevice(hDev);
}
}
catch (Exception)
{
/*No further handling here.*/
}
Pylon.Terminate(); /* Releases all pylon resources. */
Console.Error.WriteLine("\nPress enter to exit.");
Console.ReadLine();
Environment.Exit(1);
}
}
static int callbackCounter = 0; /* Will be incremented by the callback function. */
static void Main(string[] args)
{
PYLON_DEVICE_HANDLE hDev = new PYLON_DEVICE_HANDLE(); /* Handle for the pylon device. */
try
{
uint numDevices; /* Number of available devices. */
PYLON_DEVICECALLBACK_HANDLE hCb; /* Required for deregistering the callback. */
int loopCount; /* Counter. */
#if DEBUG
bool isGigECamera; /* 1 if the device is a GigE device. */
#endif
DeviceCallbackHandler callbackHandler = new DeviceCallbackHandler(); /* Handles callbacks from a device. */
/* Before using any pylon methods, the pylon runtime must be initialized. */
Pylon.Initialize();
/* Enumerate all camera devices. You must call
* PylonEnumerateDevices() before creating a device. */
numDevices = Pylon.EnumerateDevices();
if (0 == numDevices)
{
throw new Exception("No devices found.");
}
/* Get a handle for the first device found. */
hDev = Pylon.CreateDeviceByIndex(0);
/* Before using the device, it must be opened. Open it for configuring
* parameters, for grabbing images, and for grabbing events. */
Pylon.DeviceOpen(hDev, Pylon.cPylonAccessModeControl | Pylon.cPylonAccessModeStream);
/* Print out the name of the camera we are using. */
{
bool isReadable = Pylon.DeviceFeatureIsReadable(hDev, "DeviceModelName");
if (isReadable)
{
string name = Pylon.DeviceFeatureToString(hDev, "DeviceModelName");
Console.WriteLine("Using camera {0}", name);
}
}
/* Register the callback function. */
callbackHandler.CallbackEvent += new DeviceCallbackHandler.DeviceCallback(removalCallbackFunction);
hCb = Pylon.DeviceRegisterRemovalCallback(hDev, callbackHandler);
#if DEBUG
/* For GigE cameras, the application periodically sends heartbeat signals to the camera to keep the
* connection to the camera alive. If the camera doesn't receive heartbeat signals within the time
* period specified by the heartbeat timeout counter, the camera resets the connection.
* When the application is stopped by the debugger, the application cannot create the heartbeat signals.
* For that reason, the pylon runtime extends the heartbeat timeout in debug mode to 5 minutes to allow
* debugging. For GigE cameras, we will set the heartbeat timeout to a shorter period before testing the
* callbacks.
* The heartbeat mechanism is also used for detection of device removal. When the pylon runtime doesn't
* receive an acknowledge for the heartbeat signal, it is assumed that the device has been removed. A
* removal callback will be fired in that case.
* By decreasing the heartbeat timeout in debug mode for GigE cameras, the surprise removal will be noticed sooner than set by the pylon runtime. */
{
/* Find out if we are using a GigE camera. */
PYLON_DEVICE_INFO_HANDLE hDi = Pylon.DeviceGetDeviceInfoHandle(hDev);
string deviceClass = Pylon.DeviceInfoGetPropertyValueByName(hDi, Pylon.cPylonDeviceInfoDeviceClassKey);
isGigECamera = deviceClass == "BaslerGigE";
/* Adjust the heartbeat timeout. */
if (isGigECamera)
{
setHeartbeatTimeout(hDev, 1000); /* 1000 ms */
}
}
#endif
/* Ask the user to disconnect a device. */
loopCount = 20 * 4;
Console.WriteLine("Please disconnect the device (timeout {0} s) ", loopCount / 4);
/* Wait until the removal has been noticed and the callback function has been fired. */
do
{
/* Print a . every few seconds to tell the user we're waiting for the callback. */
if (--loopCount % 4 == 0)
{
Console.Write(".");
}
System.Threading.Thread.Sleep(250);
}while (callbackCounter < 1 && loopCount >= 0); /* Check loopCount so we won't wait forever. */
if (callbackCounter < 1)
{
Console.WriteLine("\nTimeout expired. Device hasn't been removed.");
}
/* Clean up. */
/* ... Deregister the removal callback. */
Pylon.DeviceDeregisterRemovalCallback(hDev, hCb);
/* ....Close and release the pylon device. */
Pylon.DeviceClose(hDev);
Pylon.DestroyDevice(hDev);
/* Shut down the pylon runtime system. Don't call any pylon method after
* calling Pylon.Terminate(). */
Pylon.Terminate();
Console.Error.WriteLine("\nPress enter to exit.");
Console.ReadLine();
}
catch (Exception e)
{
/* Retrieve the error message. */
string msg = GenApi.GetLastErrorMessage() + "\n" + GenApi.GetLastErrorDetail();
Console.Error.WriteLine("Exception caught:");
Console.Error.WriteLine(e.Message);
if (msg != "\n")
{
Console.Error.WriteLine("Last error message:");
Console.Error.WriteLine(msg);
}
try
{
if (hDev.IsValid)
{
/* ... Close and release the pylon device. */
if (Pylon.DeviceIsOpen(hDev))
{
Pylon.DeviceClose(hDev);
}
Pylon.DestroyDevice(hDev);
}
}
catch (Exception)
{
/*No further handling here.*/
}
Pylon.Terminate(); /* Releases all pylon resources. */
Console.Error.WriteLine("\nPress enter to exit.");
Console.ReadLine();
Environment.Exit(1);
}
}
public bool Initialize(int _ID, string _DeviceID)
{
bool _Result = false;
if (0 == AvailableDeviceCount)
{
return(false);
}
if (_ID >= AvailableDeviceCount)
{
return(false);
}
CameraNumber = _ID;
for (int iLoopCount = 0; iLoopCount < AvailableDeviceCount; ++iLoopCount)
{
try
{
DeviceHandle = new PYLON_DEVICE_HANDLE();
DeviceHandle = Pylon.CreateDeviceByIndex((uint)iLoopCount);
Pylon.DeviceOpen(DeviceHandle, Pylon.cPylonAccessModeControl | Pylon.cPylonAccessModeStream);
IsAvailable = Pylon.DeviceFeatureIsAvailable(DeviceHandle, "EnumEntry_PixelFormat_Mono8");
if (false == IsAvailable)
{
DestroyDeviceHandle(); return(false);
}
string _DeviceIDTemp = Pylon.DeviceFeatureToString(DeviceHandle, "DeviceID");
if (_DeviceID != _DeviceIDTemp)
{
DestroyDeviceHandle(); continue;
}
Pylon.DeviceFeatureFromString(DeviceHandle, "PixelFormat", "Mono8");
IsAvailable = Pylon.DeviceFeatureIsAvailable(DeviceHandle, "EnumEntry_TriggerSelector_AcquisitionStart");
if (false == IsAvailable)
{
DestroyDeviceHandle(); return(false);
}
Pylon.DeviceFeatureFromString(DeviceHandle, "TriggerSelector", "AcquisitionStart");
Pylon.DeviceFeatureFromString(DeviceHandle, "TriggerMode", "Off");
_Result = true;
break;
}
catch
{
CLogManager.AddInspectionLog(CLogManager.LOG_TYPE.ERR, "CBaslerManager Initialize Exception!!", CLogManager.LOG_LEVEL.LOW);
_Result = false;
}
}
if (false == _Result)
{
return(false);
}
ThreadContinuousGrab = new Thread(ThreadContinuousGrabFunc);
ThreadContinuousGrab.IsBackground = true;
IsThreadContinuousGrabExit = false;
IsThreadContinuousGrabTrigger = false;
ThreadContinuousGrab.Start();
PauseEvent.Reset();
return(true);
}
/* There are camera features that behave like enumerations. These features can take a value from a fixed
* set of possible values. One example is the pixel format feature. This function illustrates how to deal with
* enumeration features.
*
*/
private static void demonstrateEnumFeature(PYLON_DEVICE_HANDLE hDev)
{
string value; /* The current value of the feature. */
bool isWritable,
supportsMono8,
supportsYUV422Packed,
supportsMono16;
/* The allowed values for an enumeration feature are represented as strings. Use the
* PylonDeviceFeatureFromString() and PylonDeviceFeatureToString() methods for setting and getting
* the value of an enumeration feature. */
/* Get the current value of the enumeration feature. */
value = Pylon.DeviceFeatureToString(hDev, "PixelFormat");
Console.WriteLine("PixelFormat: {0}", value);
/*
* For an enumeration feature, the pylon Viewer's "Feature Documentation" window lists the
* names of the possible values. Some of the values might not be supported by the device.
* To check if a certain "SomeValue" value for a "SomeFeature" feature can be set, call the
* PylonDeviceFeatureIsAvailable() function with "EnumEntry_SomeFeature_SomeValue" as an argument.
*/
/* Check to see if the Mono8 pixel format can be set. */
supportsMono8 = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_PixelFormat_Mono8");
Console.WriteLine("Mono8 {0} a supported value for the PixelFormat feature.", supportsMono8 ? "is" : "isn't");
/* Check to see if the YUV422Packed pixel format can be set. */
supportsYUV422Packed = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_PixelFormat_YUV422Packed");
Console.WriteLine("YUV422Packed {0} a supported value for the PixelFormat feature.", supportsYUV422Packed ? "is" : "isn't");
/* Check to see if the Mono16 pixel format can be set. */
supportsMono16 = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_PixelFormat_Mono16");
Console.WriteLine("Mono16 {0} a supported value for the PixelFormat feature.", supportsMono16 ? "is" : "isn't");
/* Before writing a value, we recommend checking to see if the enumeration feature itself is
* currently writable. */
isWritable = Pylon.DeviceFeatureIsWritable(hDev, "PixelFormat");
if (isWritable)
{
/* The PixelFormat feature is writable. Set it to one of the supported values. */
if (supportsMono16)
{
Console.WriteLine("Setting PixelFormat to Mono16.");
Pylon.DeviceFeatureFromString(hDev, "PixelFormat", "Mono16");
}
else if (supportsYUV422Packed)
{
Console.WriteLine("Setting PixelFormat to YUV422Packed.");
Pylon.DeviceFeatureFromString(hDev, "PixelFormat", "YUV422Packed");
}
else if (supportsMono8)
{
Console.WriteLine("Setting PixelFormat to Mono8.");
Pylon.DeviceFeatureFromString(hDev, "PixelFormat", "Mono8");
}
/* Reset the PixelFormat feature to its previous value. */
Pylon.DeviceFeatureFromString(hDev, "PixelFormat", value);
}
}
private void initStreamMode()
{
_width = (int)Pylon.DeviceGetIntegerFeature(hDev, "Width");
_height = (int)Pylon.DeviceGetIntegerFeature(hDev, "Height");
/* Print out the name of the camera we are using. */
bool isReadable = Pylon.DeviceFeatureIsReadable(hDev, "DeviceModelName");
if (isReadable)
{
string name = Pylon.DeviceFeatureToString(hDev, "DeviceModelName");
Console.WriteLine("Using camera {0}.", name);
}
/* Set the pixel format to Mono8, where gray values will be output as 8 bit values for each pixel. */
/* ... Check first to see if the device supports the Mono8 format. */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_PixelFormat_Mono8");
if (!isAvail)
{
/* Feature is not available. */
throw new Exception("Device doesn't support the Mono8 pixel format.");
}
/* ... Set the pixel format to Mono8. */
bool isWritable = Pylon.DeviceFeatureIsWritable(hDev, "PixelFormat");
if (isWritable)
{
Pylon.DeviceFeatureFromString(hDev, "PixelFormat", "Mono8");
}
/* Disable acquisition start trigger if available */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_TriggerSelector_AcquisitionStart");
if (isAvail)
{
isWritable = Pylon.DeviceFeatureIsWritable(hDev, "TriggerSelector");
if (isWritable)
{
Pylon.DeviceFeatureFromString(hDev, "TriggerSelector", "AcquisitionStart");
}
isWritable = Pylon.DeviceFeatureIsWritable(hDev, "TriggerMode");
if (isWritable)
{
Pylon.DeviceFeatureFromString(hDev, "TriggerMode", "Off");
}
}
/* Disable frame start trigger if available */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_TriggerSelector_FrameStart");
if (isAvail)
{
isWritable = Pylon.DeviceFeatureIsWritable(hDev, "TriggerSelector");
if (isWritable)
{
Pylon.DeviceFeatureFromString(hDev, "TriggerSelector", "FrameStart");
}
isWritable = Pylon.DeviceFeatureIsWritable(hDev, "TriggerMode");
if (isWritable)
{
Pylon.DeviceFeatureFromString(hDev, "TriggerMode", "Off");
}
}
/* We will use the Continuous frame mode, i.e., the camera delivers
* images continuously. */
isWritable = Pylon.DeviceFeatureIsWritable(hDev, "AcquisitionMode");
if (isWritable)
{
Pylon.DeviceFeatureFromString(hDev, "AcquisitionMode", "Continuous");
}
/* For GigE cameras, we recommend increasing the packet size for better
* performance. When the network adapter supports jumbo frames, set the packet
* size to a value > 1500, e.g., to 8192. In this sample, we only set the packet size
* to 1500. */
/* ... Check first to see if the GigE camera packet size parameter is supported and if it is writable. */
isAvail = Pylon.DeviceFeatureIsWritable(hDev, "GevSCPSPacketSize");
if (isAvail)
{
/* ... The device supports the packet size feature. Set a value. */
isWritable = Pylon.DeviceFeatureIsWritable(hDev, "GevSCPSPacketSize");
if (isWritable)
{
Pylon.DeviceSetIntegerFeature(hDev, "GevSCPSPacketSize", GevSCPSPacketSize);
}
}
_isModelValid = isAvail;
/* Determine the required size of the grab buffer. */
payloadSize = checked ((uint)Pylon.DeviceGetIntegerFeature(hDev, "PayloadSize"));
/* Image grabbing is done using a stream grabber.
* A device may be able to provide different streams. A separate stream grabber must
* be used for each stream. In this sample, we create a stream grabber for the default
* stream, i.e., the first stream ( index == 0 ).
*/
/* Get the number of streams supported by the device and the transport layer. */
nStreams = Pylon.DeviceGetNumStreamGrabberChannels(hDev);
if (nStreams < 1)
{
throw new Exception("The transport layer doesn't support image streams.");
}
/* Create and open a stream grabber for the first channel. */
hGrabber = Pylon.DeviceGetStreamGrabber(hDev, 0);
Pylon.StreamGrabberOpen(hGrabber);
/* Get a handle for the stream grabber's wait object. The wait object
* allows waiting for buffers to be filled with grabbed data. */
hWait = Pylon.StreamGrabberGetWaitObject(hGrabber);
/* We must tell the stream grabber the number and size of the buffers
* we are using. */
/* .. We will not use more than NUM_BUFFERS for grabbing. */
Pylon.StreamGrabberSetMaxNumBuffer(hGrabber, NUM_BUFFERS);
/* .. We will not use buffers bigger than payloadSize bytes. */
Pylon.StreamGrabberSetMaxBufferSize(hGrabber, payloadSize);
/* Allocate the resources required for grabbing. After this, critical parameters
* that impact the payload size must not be changed until FinishGrab() is called. */
Pylon.StreamGrabberPrepareGrab(hGrabber);
/* Before using the buffers for grabbing, they must be registered at
* the stream grabber. For each registered buffer, a buffer handle
* is returned. After registering, these handles are used instead of the
* buffer objects pointers. The buffer objects are held in a dictionary,
* that provides access to the buffer using a handle as key.
*/
buffers = new Dictionary <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> >();
int i;
for (i = 0; i < NUM_BUFFERS; ++i)
{
PylonBuffer <Byte> buffer = new PylonBuffer <byte>(payloadSize, true);
PYLON_STREAMBUFFER_HANDLE handle = Pylon.StreamGrabberRegisterBuffer(hGrabber, ref buffer);
buffers.Add(handle, buffer);
}
/* Feed the buffers into the stream grabber's input queue. For each buffer, the API
* allows passing in an integer as additional context information. This integer
* will be returned unchanged when the grab is finished. In our example, we use the index of the
* buffer as context information. */
i = 0;
foreach (KeyValuePair <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> > pair in buffers)
{
Pylon.StreamGrabberQueueBuffer(hGrabber, pair.Key, i++);
}
}
const uint NUM_EVENT_BUFFERS = 20; /* Number of buffers used for grabbing. */
static void Main(string[] args)
{
PYLON_DEVICE_HANDLE hDev = new PYLON_DEVICE_HANDLE(); /* Handle for the pylon device. */
try
{
uint numDevices; /* Number of available devices. */
PYLON_STREAMGRABBER_HANDLE hStreamGrabber; /* Handle for the pylon stream grabber. */
PYLON_EVENTGRABBER_HANDLE hEventGrabber; /* Handle for the event grabber used for receiving events. */
PYLON_EVENTADAPTER_HANDLE hEventAdapter; /* Handle for the event adapter used for dispatching events. */
PYLON_WAITOBJECT_HANDLE hWaitStream; /* Handle used for waiting for a grab to be finished. */
PYLON_WAITOBJECT_HANDLE hWaitEvent; /* Handle used for waiting for an event message. */
PYLON_WAITOBJECTS_HANDLE hWaitObjects; /* Container allowing waiting for multiple wait objects. */
NODEMAP_HANDLE hNodeMap; /* Handle for the node map containing the
* camera parameters. */
NODE_CALLBACK_HANDLE hCallback; /* Used for deregistering a callback function. */
NODE_HANDLE hNode; /* Handle for a camera parameter. */
uint payloadSize; /* Size of an image frame in bytes. */
Dictionary <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> > buffers; /* Holds handles and buffers used for grabbing. */
PylonGrabResult_t grabResult; /* Stores the result of a grab operation. */
NodeCallbackHandler callbackHandler = new NodeCallbackHandler(); /* Handles incoming callbacks. */
int nGrabs; /* Counts the number of buffers grabbed. */
uint nStreams; /* The number of streams the device provides. */
bool isAvail; /* Used for checking feature availability. */
bool isReady; /* Used as an output parameter. */
int i; /* Counter. */
PylonEventResult_t eventMsg = new PylonEventResult_t(); /* Event data container. */
long sfncVersionMajor; /* The major number of the Standard Feature Naming Convention (SFNC)
* version used by the camera device. */
#if DEBUG
/* This is a special debug setting needed only for GigE cameras.
* See 'Building Applications with pylon' in the programmer's guide */
Environment.SetEnvironmentVariable("PYLON_GIGE_HEARTBEAT", "300000" /*ms*/);
#endif
/* Before using any pylon methods, the pylon runtime must be initialized. */
Pylon.Initialize();
/* Enumerate all camera devices. You must call
* PylonEnumerateDevices() before creating a device. */
numDevices = Pylon.EnumerateDevices();
if (0 == numDevices)
{
throw new Exception("No devices found.");
}
/* Get a handle for the first device found. */
hDev = Pylon.CreateDeviceByIndex(0);
/* Before using the device, it must be opened. Open it for configuring
* parameters, for grabbing images, and for grabbing events. */
Pylon.DeviceOpen(hDev, Pylon.cPylonAccessModeControl | Pylon.cPylonAccessModeStream | Pylon.cPylonAccessModeEvent);
/* Print out the name of the camera we are using. */
{
bool isReadable = Pylon.DeviceFeatureIsReadable(hDev, "DeviceModelName");
if (isReadable)
{
string name = Pylon.DeviceFeatureToString(hDev, "DeviceModelName");
Console.WriteLine("Using camera {0}", name);
}
}
/* Set the pixel format to Mono8, where gray values will be output as 8 bit values for each pixel. */
/* ... Check first to see if the device supports the Mono8 format. */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_PixelFormat_Mono8");
if (!isAvail)
{
/* Feature is not available. */
throw new Exception("Device doesn't support the Mono8 pixel format.");
}
/* ... Set the pixel format to Mono8. */
Pylon.DeviceFeatureFromString(hDev, "PixelFormat", "Mono8");
/* Disable acquisition start trigger if available. */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_TriggerSelector_AcquisitionStart");
if (isAvail)
{
Pylon.DeviceFeatureFromString(hDev, "TriggerSelector", "AcquisitionStart");
Pylon.DeviceFeatureFromString(hDev, "TriggerMode", "Off");
}
/* Disable frame burst start trigger if available */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_TriggerSelector_FrameBurstStart");
if (isAvail)
{
Pylon.DeviceFeatureFromString(hDev, "TriggerSelector", "FrameBurstStart");
Pylon.DeviceFeatureFromString(hDev, "TriggerMode", "Off");
}
/* Disable frame start trigger if available. */
isAvail = Pylon.DeviceFeatureIsAvailable(hDev, "EnumEntry_TriggerSelector_FrameStart");
if (isAvail)
{
Pylon.DeviceFeatureFromString(hDev, "TriggerSelector", "FrameStart");
Pylon.DeviceFeatureFromString(hDev, "TriggerMode", "Off");
}
/* We will use the Continuous frame mode, i.e., the camera delivers
* images continuously. */
Pylon.DeviceFeatureFromString(hDev, "AcquisitionMode", "Continuous");
/* For GigE cameras, we recommend increasing the packet size for better
* performance. If the network adapter supports jumbo frames, set the packet
* size to a value > 1500, e.g., to 8192. In this sample, we only set the packet size
* to 1500. */
/* ... Check first to see if the GigE camera packet size parameter is supported and if it is writable. */
isAvail = Pylon.DeviceFeatureIsWritable(hDev, "GevSCPSPacketSize");
if (isAvail)
{
/* ... The device supports the packet size feature. Set a value. */
Pylon.DeviceSetIntegerFeature(hDev, "GevSCPSPacketSize", 1500);
}
/* Determine the required size of the grab buffer. */
payloadSize = checked ((uint)Pylon.DeviceGetIntegerFeature(hDev, "PayloadSize"));
/* Determine the major number of the SFNC version used by the camera device. */
if (Pylon.DeviceFeatureIsAvailable(hDev, "DeviceSFNCVersionMajor"))
{
sfncVersionMajor = Pylon.DeviceGetIntegerFeature(hDev, "DeviceSFNCVersionMajor");
}
else
{
/* No SFNC version information is provided by the camera device. */
sfncVersionMajor = 0;
}
/* Enable camera events. */
/* Select the end-of-exposure event.*/
Pylon.DeviceFeatureFromString(hDev, "EventSelector", "ExposureEnd");
/* Enable the event. Select the enumeration entry name depending on the SFNC version used by the camera device. */
if (sfncVersionMajor >= 2)
{
Pylon.DeviceFeatureFromString(hDev, "EventNotification", "On");
}
else
{
Pylon.DeviceFeatureFromString(hDev, "EventNotification", "GenICamEvent");
}
/* Image grabbing is done using a stream grabber.
* A device may be able to provide different streams. A separate stream grabber must
* be used for each stream. In this sample, we create a stream grabber for the default
* stream, i.e., the first stream ( index == 0 ).
*/
/* Get the number of streams supported by the device and the transport layer. */
nStreams = Pylon.DeviceGetNumStreamGrabberChannels(hDev);
if (nStreams < 1)
{
throw new Exception("The transport layer doesn't support image streams");
}
/* Create and open a stream grabber for the first channel. */
hStreamGrabber = Pylon.DeviceGetStreamGrabber(hDev, 0);
Pylon.StreamGrabberOpen(hStreamGrabber);
/* Get a handle for the stream grabber's wait object. The wait object
* allows waiting for buffers to be grabbed. */
hWaitStream = Pylon.StreamGrabberGetWaitObject(hStreamGrabber);
/* We must tell the stream grabber the number and size of the buffers
* we are using. */
/* .. We will not use more than NUM_BUFFERS for grabbing. */
Pylon.StreamGrabberSetMaxNumBuffer(hStreamGrabber, NUM_IMAGE_BUFFERS);
/* .. We will not use buffers bigger than payloadSize bytes. */
Pylon.StreamGrabberSetMaxBufferSize(hStreamGrabber, payloadSize);
/* Allocate the resources required for grabbing. After this, critical parameters
* that impact the payload size must not be changed until FinishGrab() is called. */
Pylon.StreamGrabberPrepareGrab(hStreamGrabber);
/* Before using the buffers for grabbing, they must be registered at
* the stream grabber. For each registered buffer, a buffer handle
* is returned. After registering, these handles are used instead of the
* buffer object pointers. The buffer objects are held in a dictionary,
* that provides access to the buffer using a handle as key.
*/
buffers = new Dictionary <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> >();
for (i = 0; i < NUM_IMAGE_BUFFERS; ++i)
{
PylonBuffer <Byte> buffer = new PylonBuffer <byte>(payloadSize, true);
PYLON_STREAMBUFFER_HANDLE handle = Pylon.StreamGrabberRegisterBuffer(hStreamGrabber, ref buffer);
buffers.Add(handle, buffer);
}
/* Feed the buffers into the stream grabber's input queue. For each buffer, the API
* allows passing in an integer as additional context information. This integer
* will be returned unchanged when the grab is finished. In our example, we use the index of the
* buffer as context information. */
i = 0;
foreach (KeyValuePair <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> > pair in buffers)
{
Pylon.StreamGrabberQueueBuffer(hStreamGrabber, pair.Key, i++);
}
/* The stream grabber is now prepared. As soon the camera starts to acquire images,
* the image data will be grabbed into the provided buffers. */
/* Create and prepare an event grabber. */
/* ... Get a handle for the event grabber. */
hEventGrabber = Pylon.DeviceGetEventGrabber(hDev);
if (!hEventGrabber.IsValid)
{
/* The transport layer doesn't support event grabbers. */
throw new Exception("No event grabber supported.");
}
/* ... Tell the grabber how many buffers to use. */
Pylon.EventGrabberSetNumBuffers(hEventGrabber, NUM_EVENT_BUFFERS);
/* ... Open the event grabber. */
Pylon.EventGrabberOpen(hEventGrabber); /* The event grabber is now ready
* for receiving events. */
/* Retrieve the wait object that is associated with the event grabber. The event
* will be signaled when an event message has been received. */
hWaitEvent = Pylon.EventGrabberGetWaitObject(hEventGrabber);
/* For extracting the event data from an event message, an event adapter is used. */
hEventAdapter = Pylon.DeviceCreateEventAdapter(hDev);
if (!hEventAdapter.IsValid)
{
/* The transport layer doesn't support event grabbers. */
throw new Exception("No event adapter supported.");
}
/* Register the callback function for the ExposureEndEventFrameID parameter. */
/*.Get the node map containing all parameters. */
hNodeMap = Pylon.DeviceGetNodeMap(hDev);
/* Get the ExposureEndEventFrameID parameter.
* Select the parameter name depending on the SFNC version used by the camera device.
*/
if (sfncVersionMajor >= 2)
{
hNode = GenApi.NodeMapGetNode(hNodeMap, "EventExposureEndFrameID");
}
else
{
hNode = GenApi.NodeMapGetNode(hNodeMap, "ExposureEndEventFrameID");
}
if (!hNode.IsValid)
{
/* There is no ExposureEndEventFrameID parameter. */
throw new Exception("There is no ExposureEndEventFrameID or EventExposureEndFrameID parameter!");
}
/* ... Register the callback function. */
callbackHandler.CallbackEvent += new NodeCallbackHandler.NodeCallback(endOfExposureCallback);
hCallback = GenApi.NodeRegisterCallback(hNode, callbackHandler);
/* Put the wait objects into a container. */
/* ... Create the container. */
hWaitObjects = Pylon.WaitObjectsCreate();
/* ... Add the wait objects' handles. */
Pylon.WaitObjectsAdd(hWaitObjects, hWaitEvent);
Pylon.WaitObjectsAdd(hWaitObjects, hWaitStream);
/* Let the camera acquire images. */
Pylon.DeviceExecuteCommandFeature(hDev, "AcquisitionStart");
/* Grab NUM_GRABS images. */
nGrabs = 0; /* Counts the number of images grabbed. */
while (nGrabs < NUM_GRABS)
{
int bufferIndex; /* Index of the buffer. */
uint waitObjectIndex; /* Index of the wait object that is signalled.*/
Byte min, max;
/* Wait for either an image buffer grabbed or an event received. Wait up to 1000 ms. */
isReady = Pylon.WaitObjectsWaitForAny(hWaitObjects, 1000, out waitObjectIndex);
if (!isReady)
{
/* Timeout occurred. */
throw new Exception("Timeout. Neither grabbed an image nor received an event.");
}
if (0 == waitObjectIndex)
{
/* hWaitEvent has been signalled. At least one event message is available. Retrieve it. */
isReady = Pylon.EventGrabberRetrieveEvent(hEventGrabber, ref eventMsg);
if (!isReady)
{
/* Oops. No event message available? We should never have reached this point.
* Since the wait operation above returned without a timeout, an event message
* should be available. */
throw new Exception("Failed to retrieve an event.");
}
/* Check to see if the event was successfully received. */
if (0 == eventMsg.ErrorCode)
{
/* Successfully received an event message. */
/* Pass the event message to the event adapter. The event adapter will
* update the parameters related to events and will fire the callbacks
* registered to event related parameters. */
Pylon.EventAdapterDeliverMessage(hEventAdapter, eventMsg);
}
else
{
Console.Error.WriteLine("Error when receiving an event: {1}", eventMsg.ErrorCode);
}
}
else if (1 == waitObjectIndex)
{
/* hWaitStream has been signalled. The result of at least one grab
* operation is available. Retrieve it. */
isReady = Pylon.StreamGrabberRetrieveResult(hStreamGrabber, out grabResult);
if (!isReady)
{
/* Oops. No grab result available? We should never have reached this point.
* Since the wait operation above returned without a timeout, a grab result
* should be available. */
throw new Exception("Failed to retrieve a grab result.");
}
nGrabs++;
/* Get the buffer index from the context information. */
bufferIndex = (int)grabResult.Context;
/* Check to see if the image was grabbed successfully. */
if (grabResult.Status == EPylonGrabStatus.Grabbed)
{
/* Success. Perform image processing. Since we passed more than one buffer
* to the stream grabber, the remaining buffers are filled while
* we do the image processing. The processed buffer won't be touched by
* the stream grabber until we pass it back to the stream grabber. */
PylonBuffer <Byte> buffer; /* Reference to the buffer attached to the grab result. */
/* Get the buffer from the dictionary. Since we also got the buffer index,
* we could alternatively use an array, e.g. buffers[bufferIndex]. */
if (!buffers.TryGetValue(grabResult.hBuffer, out buffer))
{
/* Oops. No buffer available? We should never have reached this point. Since all buffers are
* in the dictionary. */
throw new Exception("Failed to find the buffer associated with the handle returned in grab result.");
}
getMinMax(buffer.Array, out min, out max);
Console.WriteLine("Grabbed frame {0} into buffer {1}. Min. gray value = {2}, Max. gray value = {3}",
nGrabs, bufferIndex, min, max);
}
else if (grabResult.Status == EPylonGrabStatus.Failed)
{
Console.Error.WriteLine("Frame {0} wasn't grabbed successfully. Error code = {1}",
nGrabs, grabResult.ErrorCode);
}
/* Once finished with the processing, requeue the buffer to be filled again. */
Pylon.StreamGrabberQueueBuffer(hStreamGrabber, grabResult.hBuffer, bufferIndex);
}
}
/* Clean up. */
/* ... Stop the camera. */
Pylon.DeviceExecuteCommandFeature(hDev, "AcquisitionStop");
/* ... Switch off the events. */
Pylon.DeviceFeatureFromString(hDev, "EventSelector", "ExposureEnd");
Pylon.DeviceFeatureFromString(hDev, "EventNotification", "Off");
/* ... We must issue a cancel call to ensure that all pending buffers are put into the
* stream grabber's output queue. */
Pylon.StreamGrabberCancelGrab(hStreamGrabber);
/* ... The buffers can now be retrieved from the stream grabber. */
do
{
isReady = Pylon.StreamGrabberRetrieveResult(hStreamGrabber, out grabResult);
} while (isReady);
/* ... When all buffers are retrieved from the stream grabber, they can be deregistered.
* After deregistering the buffers, it is safe to free the memory. */
foreach (KeyValuePair <PYLON_STREAMBUFFER_HANDLE, PylonBuffer <Byte> > pair in buffers)
{
Pylon.StreamGrabberDeregisterBuffer(hStreamGrabber, pair.Key);
pair.Value.Dispose();
}
buffers = null;
/* ... Release grabbing related resources. */
Pylon.StreamGrabberFinishGrab(hStreamGrabber);
/* After calling PylonStreamGrabberFinishGrab(), parameters that impact the payload size (e.g.,
* the AOI width and height parameters) are unlocked and can be modified again. */
/* ... Close the stream grabber. */
Pylon.StreamGrabberClose(hStreamGrabber);
/* ... Deregister the callback. */
GenApi.NodeDeregisterCallback(hNode, hCallback);
/* ... Close the event grabber.*/
Pylon.EventGrabberClose(hEventGrabber);
/* ... Release the event adapter. */
Pylon.DeviceDestroyEventAdapter(hDev, hEventAdapter);
/* ... Release the wait object container. */
Pylon.WaitObjectsDestroy(hWaitObjects);
/* ... Close and release the pylon device. The stream grabber becomes invalid
* after closing the pylon device. Don't call stream grabber related methods after
* closing or releasing the device. */
Pylon.DeviceClose(hDev);
Pylon.DestroyDevice(hDev);
/* ... Shut down the pylon runtime system. Don't call any pylon method after
* calling PylonTerminate(). */
Pylon.Terminate();
Console.Error.WriteLine("\nPress enter to exit.");
Console.ReadLine();
}
catch (Exception e)
{
/* Retrieve the error message. */
string msg = GenApi.GetLastErrorMessage() + "\n" + GenApi.GetLastErrorDetail();
Console.Error.WriteLine("Exception caught:");
Console.Error.WriteLine(e.Message);
if (msg != "\n")
{
Console.Error.WriteLine("Last error message:");
Console.Error.WriteLine(msg);
}
try
{
if (hDev.IsValid)
{
/* Disable the software trigger. */
Pylon.DeviceFeatureFromString(hDev, "TriggerMode", "Off");
/* ... Close and release the pylon device. */
if (Pylon.DeviceIsOpen(hDev))
{
Pylon.DeviceClose(hDev);
}
Pylon.DestroyDevice(hDev);
}
}
catch (Exception)
{
/*No further handling here.*/
}
Pylon.Terminate(); /* Releases all pylon resources. */
Console.Error.WriteLine("\nPress enter to exit.");
Console.ReadLine();
Environment.Exit(1);
}
}