private static void FindMyDevice()
{
var devicePathName = "";
if (!(DeviceDetected))
{
// This GUID must match the GUID in the device's INF file.
// Convert the device interface GUID String to a GUID object:
if (_deviceManager.FindDeviceFromGuid(WinUsbDemoGuid, ref devicePathName))
{
var success = _usbDevice.GetDeviceHandle(devicePathName);
if (success)
{
DeviceDetected = true;
// Save DevicePathName so OnDeviceChange() knows which name is my device.
_devicePathName = devicePathName;
}
else
{
// There was a problem in retrieving the information.
DeviceDetected = false;
_usbDevice.CloseDeviceHandle();
}
}
if (DeviceDetected)
{
_usbDevice.InitializeDevice();
}
}
}
/// <summary>
/// Taken from Jan Axelson's USB Bulk Transfer implementation.
/// Finds the device if it exists, retrieves the handle to it. Subscribes the main
/// form to receive notifications from
/// the device. This function should only be called from the main code until the deivice is initially
/// </summary>
/// <returns></returns>
public bool FindMyDevice()
{
Boolean deviceFound = false;
String devPathName = "";
Boolean success = false;
isDeviceDetected = false;
try
{
if (!(isDeviceDetected))
{
// Convert the device interface GUID String to a GUID object:
System.Guid winusb_device_guid =
new System.Guid(deviceGUID);
// Fill an array with the device path names of all attached devices with matching GUIDs.
deviceFound = deviceManager.FindDeviceFromGuid
(winusb_device_guid,
ref devPathName);
if (deviceFound == true)
{
success = device.GetDeviceHandle(devPathName);
if (success)
{
isDeviceDetected = true;
// Save DevicePathName so OnDeviceChange() knows which name is my device.
devicePathName = devPathName;
}
else
{
// There was a problem in retrieving the information.
isDeviceDetected = false;
device.CloseDeviceHandle();
}
}
if (isDeviceDetected)
{
// The device was detected.
// Register to receive notifications if the device is removed or attached.
if (deviceNotificationHandle == IntPtr.Zero)
{
success = deviceManager.RegisterForDeviceNotifications
(devicePathName,
formReference.Handle,
winusb_device_guid,
ref deviceNotificationHandle);
}
if (success)
{
device.InitializeDevice();
}
}
}
return(isDeviceDetected);
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// Uses a series of API calls to locate a HID-class device
/// by its Vendor ID and Product ID.
/// </summary>
/// <returns>True if the device is detected, False if not detected.</returns>
private bool FindTheHid()
{
string[] DevicePathName = new string[128];
FileIOApiDeclarations.SECURITY_ATTRIBUTES Security = new FileIOApiDeclarations.SECURITY_ATTRIBUTES();
try
{
if (Settings.Instance.ExtensiveLogging)
{
Log.Debug("MiniDisplay.VFD_Control: Searching for display with VendorID:{0:X} & ProductID:{1:X}", _VendorID,
_ProductID);
}
Guid HidGuid = Guid.Empty;
_MyDeviceDetected = false;
// Values for the SECURITY_ATTRIBUTES structure:
Security.lpSecurityDescriptor = 0;
Security.bInheritHandle = Convert.ToInt32(true);
Security.nLength = Marshal.SizeOf(Security);
/*
* API function: 'HidD_GetHidGuid
* Purpose: Retrieves the interface class GUID for the HID class.
* Accepts: 'A System.Guid object for storing the GUID.
*/
HidApiDeclarations.HidD_GetHidGuid(ref HidGuid);
if (Settings.Instance.ExtensiveLogging)
{
Log.Debug("MiniDisplay.VFD_Control: " + Debugging.ResultOfAPICall("GetHidGuid"));
}
// Display the GUID.
string GUIDString = HidGuid.ToString();
if (Settings.Instance.ExtensiveLogging)
{
Log.Debug("MiniDisplay.VFD_Control: GUID for system HIDs: " + GUIDString);
}
// Fill an array with the device path names of all attached HIDs.
bool DeviceFound = DeviceManagement.FindDeviceFromGuid(HidGuid, ref DevicePathName);
// If there is at least one HID, attempt to read the Vendor ID and Product ID
// of each device until there is a match or all devices have been examined.
if (DeviceFound)
{
int MemberIndex = 0;
do
{
// ***
// API function:
// CreateFile
// Purpose:
// Retrieves a handle to a device.
// Accepts:
// A device path name returned by SetupDiGetDeviceInterfaceDetail
// The type of access requested (read/write).
// FILE_SHARE attributes to allow other processes to access the device while this handle is open.
// A Security structure. Using Null for this may cause problems under Windows XP.
// A creation disposition value. Use OPEN_EXISTING for devices.
// Flags and attributes for files. Not used for devices.
// Handle to a template file. Not used.
// Returns: a handle that enables reading and writing to the device.
// ***
_HIDHandle = FileIOApiDeclarations.CreateFile
(DevicePathName[MemberIndex],
FileIOApiDeclarations.GENERIC_READ | FileIOApiDeclarations.GENERIC_WRITE,
FileIOApiDeclarations.FILE_SHARE_READ | FileIOApiDeclarations.FILE_SHARE_WRITE,
ref Security,
FileIOApiDeclarations.OPEN_EXISTING, 0, 0);
if (Settings.Instance.ExtensiveLogging)
{
Log.Debug("MiniDisplay.VFD_Control: " + Debugging.ResultOfAPICall("CreateFile"));
}
if (Settings.Instance.ExtensiveLogging)
{
Log.Debug("MiniDisplay.VFD_Control: Returned handle: " + _HIDHandle.ToString("x") + "h");
}
if (_HIDHandle != FileIOApiDeclarations.INVALID_HANDLE_VALUE)
{
// The returned handle is valid,
// so find out if this is the device we're looking for.
// Set the Size property of DeviceAttributes to the number of bytes in the structure.
_MyHID.DeviceAttributes.Size = Marshal.SizeOf(_MyHID.DeviceAttributes);
// ***
// API function:
// HidD_GetAttributes
// Purpose:
// Retrieves a HIDD_ATTRIBUTES structure containing the Vendor ID,
// Product ID, and Product Version Number for a device.
// Accepts:
// A handle returned by CreateFile.
// A pointer to receive a HIDD_ATTRIBUTES structure.
// Returns:
// True on success, False on failure.
// ***
int Result = HidApiDeclarations.HidD_GetAttributes(_HIDHandle, ref _MyHID.DeviceAttributes);
if (Settings.Instance.ExtensiveLogging)
{
Log.Debug("MiniDisplay.VFD_Control: " + Debugging.ResultOfAPICall("HidD_GetAttributes"));
}
if (Result != 0)
{
if (Settings.Instance.ExtensiveLogging)
{
Log.Debug("MiniDisplay.VFD_Control: HIDD_ATTRIBUTES structure filled without error.");
}
if (Settings.Instance.ExtensiveLogging)
{
Log.Debug(
"MiniDisplay.VFD_Control: Vendor ID: {0:X}, Product ID: {1:X}, Version {2:X}" +
_MyHID.DeviceAttributes.VendorID, _MyHID.DeviceAttributes.ProductID,
_MyHID.DeviceAttributes.VersionNumber);
}
// Find out if the device matches the one we're looking for.
if ((_MyHID.DeviceAttributes.VendorID == _VendorID) &
(_MyHID.DeviceAttributes.ProductID == _ProductID))
{
// It's the desired device.
if (Settings.Instance.ExtensiveLogging)
{
Log.Debug("MiniDisplay.VFD_Control: My device detected");
}
_MyDeviceDetected = true;
// Save the DevicePathName so OnDeviceChange() knows which name is my device.
}
else
{
// It's not a match, so close the handle.
_MyDeviceDetected = false;
FileIOApiDeclarations.CloseHandle(_HIDHandle);
if (Settings.Instance.ExtensiveLogging)
{
Log.Debug("MiniDisplay.VFD_Control: " + Debugging.ResultOfAPICall("CloseHandle"));
}
}
}
else
{
// There was a problem in retrieving the information.
if (Settings.Instance.ExtensiveLogging)
{
Log.Debug("MiniDisplay.VFD_Control: Error in filling HIDD_ATTRIBUTES structure.");
}
_MyDeviceDetected = false;
FileIOApiDeclarations.CloseHandle(_HIDHandle);
}
}
// Keep looking until we find the device or there are no more left to examine.
MemberIndex = MemberIndex + 1;
} while (!(_MyDeviceDetected || (MemberIndex == DevicePathName.Length) || DevicePathName[MemberIndex] == null));
}
if (_MyDeviceDetected)
{
// The device was detected.
// Learn the capabilities of the device.
_MyHID.Capabilities = _MyHID.GetDeviceCapabilities(_HIDHandle);
}
}
catch (Exception ex)
{
Log.Error(ex);
//HandleException(this.Name + ":" + System.Reflection.MethodBase.GetCurrentMethod(), ex);
}
return(_MyDeviceDetected);
}
/// <summary>
/// Find the Nintendo USB controller. Also save HID capabilities for device for later.
/// </summary>
/// <returns></returns>
public bool FindController()
{
bool deviceFound = false;
Guid hidGuid = Guid.Empty;
String[] devicePathName = new String[255];
Int32 memberIndex = 0;
bool success = false;
try
{
myDeviceDetected = false;
CloseCommunications();
// Get the Guid associated with USB HID class.
Hid.HidD_GetHidGuid(ref hidGuid);
Debug.WriteLineIf(WRITE_DEBUG_INFO,
MyDebugging.ResultOfAPICall("Hid.HidD_GetHidGuid"));
// Get all attached HIDs. I am assuming there are a maximum of 128.
deviceFound = MyDeviceManagement.FindDeviceFromGuid(hidGuid, ref devicePathName);
if (deviceFound)
{
memberIndex = 0;
// Loop through all USB HIDs found and look for my VID/PID.
do
{
// Open HID handle without read nor write access to get info.
hidHandle = FileIO.CreateFile(
devicePathName[memberIndex],
0,
FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE,
IntPtr.Zero,
FileIO.OPEN_EXISTING,
0,
0);
Debug.WriteLineIf(WRITE_DEBUG_INFO,
MyDebugging.ResultOfAPICall("FileIO.CreateFile"));
if (!hidHandle.IsInvalid)
{
// Get DeviceAttribute size in bytes.
MyHid.DeviceAttributes.Size = Marshal.SizeOf(MyHid.DeviceAttributes);
// Get HID attributes.
success = Hid.HidD_GetAttributes(hidHandle, ref MyHid.DeviceAttributes);
if (success)
{
if (MyHid.DeviceAttributes.VendorID == USB_NINTENDO_VID &&
MyHid.DeviceAttributes.ProductID == USB_NINTENDO_PID)
{
myDeviceDetected = true;
myDevicePathName = devicePathName[memberIndex];
}
else
{
// Not a match - close handle.
hidHandle.Close();
}
}
else
{
// There was a problem trying to retrieve the HID info.
Debug.WriteLineIf(WRITE_DEBUG_INFO,
"Error trying to get HID attributes in " +
"UsbSingleNintendoController.FindController() when calling " +
"Hid.HidD_GetAttributes(...)");
hidHandle.Close();
}
}
// Prepare to go to next index.
memberIndex++;
}while (!((myDeviceDetected || (memberIndex == devicePathName.Length))));
}
// If device found, wire it up to this class.
if (myDeviceDetected)
{
// Only allow a very few number of input reports to be queued.
MyHid.SetNumberOfInputBuffers(hidHandle, USB_NUMBER_INPUT_REPORT_BUFFERS);
Debug.WriteLineIf(WRITE_DEBUG_INFO,
MyDebugging.ResultOfAPICall("MyHid.SetNumberOfInputBuffers"));
// Register for notification if HID removed or attached.
success = MyDeviceManagement.RegisterForDeviceNotifications(myDevicePathName,
this.Handle, hidGuid, ref deviceNotificationHandle);
Debug.WriteLineIf(WRITE_DEBUG_INFO && !success,
"Failed at: MyDeviceManagement.RegisterForDeviceNotifications");
// Get capabilities report for report sizes.
MyHid.Capabilities = MyHid.GetDeviceCapabilities(hidHandle);
Debug.WriteLineIf(WRITE_DEBUG_INFO,
MyDebugging.ResultOfAPICall("MyHid.GetDeviceCapabilities"));
if (success)
{
// Close handle then reopen in RW mode.
hidHandle.Close();
hidHandle = FileIO.CreateFile(
myDevicePathName,
FileIO.GENERIC_READ | FileIO.GENERIC_WRITE,
FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE,
IntPtr.Zero,
FileIO.OPEN_EXISTING,
0,
0);
#pragma warning disable
Debug.WriteLineIf(WRITE_DEBUG_INFO && hidHandle.IsInvalid,
"File handle invalid at: FileIO.CreateFile(read/write)");
#pragma warning restore
Debug.WriteLineIf(WRITE_DEBUG_INFO,
MyDebugging.ResultOfAPICall("FileIO.CreateFile(read/write)"));
if (MyHid.Capabilities.InputReportByteLength > 0)
{
fileStreamDeviceData = new FileStream(
hidHandle,
FileAccess.ReadWrite,
MyHid.Capabilities.InputReportByteLength,
false);
}
MyHid.FlushQueue(hidHandle);
}
}
}
catch (Exception ex)
{
Debug.WriteLineIf(WRITE_DEBUG_INFO, ex.Message);
deviceFound = false;
}
return(deviceFound);
}
private static Boolean FindBootloader_WIN()
{
Boolean deviceFound;
String devicePathName = "";
Boolean success;
try
{
if (!(HID.BootloaderDetected))
{
// Convert the device interface GUID String to a GUID object:
System.Guid winUsbDemoGuid =
new System.Guid(variables.BOOTLOADER_GUID_STRING);
// Fill an array with the device path names of all attached devices with matching GUIDs.
deviceFound = BootloaderManagement.FindDeviceFromGuid
(winUsbDemoGuid,
ref devicePathName);
if (variables.debugme)
{
Console.WriteLine("DemoN - {0}", devicePathName);
}
if (deviceFound == true)
{
success = Bootloader.GetDeviceHandle(devicePathName);
if (success)
{
if (variables.debugme)
{
Console.WriteLine("Bootloader attached -85");
}
HID.BootloaderDetected = true;
// Save DevicePathName so OnDeviceChange() knows which name is my device.
BootloaderPathName = devicePathName;
}
else
{
// There was a problem in retrieving the information.
HID.BootloaderDetected = false;
Bootloader.CloseDeviceHandle();
}
}
if (HID.BootloaderDetected)
{
// The device was detected.
// Register to receive notifications if the device is removed or attached.
if (variables.debugme)
{
Console.WriteLine("Bootloader attached.-106");
}
success = BootloaderManagement.RegisterForDeviceNotifications
(BootloaderPathName,
MainForm.frmMy.Handle,
winUsbDemoGuid,
ref BootloaderNotificationHandle);
if (success)
{
if (Bootloader.InitializeDevice())
{
if (variables.debugme)
{
Console.WriteLine("Bootloader attached.-117");
}
}
else
{
if (variables.debugme)
{
Console.WriteLine("failed 121");
}
}
}
else
{
if (variables.debugme)
{
Console.WriteLine("failed 126");
}
}
}
else
{
if (variables.debugme)
{
Console.WriteLine("Bootloader not found.");
}
}
}
else
{
if (variables.debugme)
{
Console.WriteLine("Bootloader attached.-128");
}
}
return(HID.BootloaderDetected);
}
catch (Exception ex)
{
if (variables.debugme)
{
Console.WriteLine(ex.ToString());
}
return(false);
}
}
/// <summary>
/// Uses a series of API calls to locate a HID-class device
/// by its Vendor ID and Product ID.
/// Fills myDevicePathName with a path to device found, readHandle and writeHandle. Registers for Device Notifications (attached / detached type of events).
/// </summary>
///
/// <returns>
/// True if the device is detected, False if not detected.
/// </returns>
private Boolean FindTheHid(Int32 myVendorID, Int32 myProductID)
{
Boolean someHidDevicesFound = false;
String[] devicePathName = new String[128];
String functionName = "";
Guid hidGuid = Guid.Empty;
Int32 memberIndex = 0;
Boolean success = false;
try
{
myDeviceDetected = false;
Tracer.Trace(string.Format("FindTheHid(0x{0:X04}, 0x{1:X04})", myVendorID, myProductID));
// ***
// API function: 'HidD_GetHidGuid
// Purpose: Retrieves the interface class GUID for the HID class.
// Accepts: 'A System.Guid object for storing the GUID.
// ***
Hid.HidD_GetHidGuid(ref hidGuid);
functionName = "GetHidGuid";
Tracer.Trace(MyDebugging.ResultOfAPICall(functionName));
Tracer.Trace(" GUID for system HIDs: " + hidGuid.ToString());
// Fill an array with the device path names of all attached HIDs.
someHidDevicesFound = MyDeviceManagement.FindDeviceFromGuid(hidGuid, ref devicePathName);
// If there is at least one HID, attempt to read the Vendor ID and Product ID
// of each device until there is a match or all devices have been examined.
//
// Fill myDevicePathName with a path to device found.
if (someHidDevicesFound)
{
memberIndex = 0;
// Tracer.Trace(" total number of HID devices: " + devicePathName.Length); // will be something like 128, a lot of empty paths there.
do
{
// ***
// API function:
// CreateFile
// Purpose:
// Retrieves a handle to a device.
// Accepts:
// A device path name returned by SetupDiGetDeviceInterfaceDetail
// The type of access requested (read/write).
// FILE_SHARE attributes to allow other processes to access the device while this handle is open.
// A Security structure or IntPtr.Zero.
// A creation disposition value. Use OPEN_EXISTING for devices.
// Flags and attributes for files. Not used for devices.
// Handle to a template file. Not used.
// Returns: a handle without read or write access.
// This enables obtaining information about all HIDs, even system
// keyboards and mice.
// Separate handles are used for reading and writing.
// ***
if (!string.IsNullOrEmpty(devicePathName[memberIndex]))
{
Tracer.Trace(" trying HID device path '" + devicePathName[memberIndex] + "'");
hidHandle = FileIO.CreateFile(devicePathName[memberIndex], 0, FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE, IntPtr.Zero, FileIO.OPEN_EXISTING, 0, 0);
functionName = "CreateFile";
Tracer.Trace(MyDebugging.ResultOfAPICall(functionName));
Tracer.Trace(" FindTheHid(): some HID device found, returned handle: " + hidHandle.ToString());
if (!hidHandle.IsInvalid)
{
// The returned handle is valid,
// so find out if this is the device we're looking for.
// Set the Size property of DeviceAttributes to the number of bytes in the structure.
MyHid.DeviceAttributes.Size = Marshal.SizeOf(MyHid.DeviceAttributes);
// ***
// API function:
// HidD_GetAttributes
// Purpose:
// Retrieves a HIDD_ATTRIBUTES structure containing the Vendor ID,
// Product ID, and Product Version Number for a device.
// Accepts:
// A handle returned by CreateFile.
// A pointer to receive a HIDD_ATTRIBUTES structure.
// Returns:
// True on success, False on failure.
// ***
success = Hid.HidD_GetAttributes(hidHandle, ref MyHid.DeviceAttributes);
if (success)
{
Tracer.Trace(" HIDD_ATTRIBUTES structure filled without error.");
Tracer.Trace(" Structure size: " + MyHid.DeviceAttributes.Size);
Tracer.Trace(string.Format(" Vendor ID: 0x{0:X04}", MyHid.DeviceAttributes.VendorID));
Tracer.Trace(string.Format(" Product ID: 0x{0:X04}", MyHid.DeviceAttributes.ProductID));
Tracer.Trace(string.Format(" Version Number: 0x{0:X04}", MyHid.DeviceAttributes.VersionNumber));
// Find out if the device matches the one we're looking for.
if ((MyHid.DeviceAttributes.VendorID == myVendorID) && (MyHid.DeviceAttributes.ProductID == myProductID))
{
Tracer.Trace(" My device detected");
myDeviceDetected = true;
// Save the DevicePathName for OnDeviceChange().
myDevicePathName = devicePathName[memberIndex];
}
else
{
// It's not a match, so close the handle.
Tracer.Trace(" (This is not My Device)");
myDeviceDetected = false;
hidHandle.Close();
}
}
else
{
// There was a problem in retrieving the information.
Tracer.Trace(" Error in filling HIDD_ATTRIBUTES structure.");
myDeviceDetected = false;
hidHandle.Close();
}
}
}
// Keep looking until we find the device or there are no devices left to examine.
memberIndex = memberIndex + 1;
}while (!((myDeviceDetected || (memberIndex == devicePathName.Length))));
}
if (myDeviceDetected)
{
// The device was detected.
// Register to receive notifications if the device is removed or attached.
success = MyDeviceManagement.RegisterForDeviceNotifications(myDevicePathName, WindowHandle, hidGuid, ref deviceNotificationHandle);
Tracer.Trace("RegisterForDeviceNotifications = " + success);
// Learn the capabilities of the device.
MyHid.Capabilities = MyHid.GetDeviceCapabilities(hidHandle);
if (success)
{
// Find out if the device is a system mouse or keyboard.
hidUsage = MyHid.GetHidUsage(MyHid.Capabilities);
// Get the Input report buffer size.
GetInputReportBufferSize();
// Get handles to use in requesting Input and Output reports.
readHandle = FileIO.CreateFile(myDevicePathName, FileIO.GENERIC_READ, FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE, IntPtr.Zero, FileIO.OPEN_EXISTING, FileIO.FILE_FLAG_OVERLAPPED, 0);
functionName = "CreateFile, ReadHandle";
Tracer.Trace(MyDebugging.ResultOfAPICall(functionName));
Tracer.Trace(" FindTheHid(): success, returned handle: " + readHandle.ToString());
if (readHandle.IsInvalid)
{
exclusiveAccess = true;
Tracer.Error("The device is a system " + hidUsage + ". Applications can access Feature reports only.");
}
else
{
writeHandle = FileIO.CreateFile(myDevicePathName, FileIO.GENERIC_WRITE, FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE, IntPtr.Zero, FileIO.OPEN_EXISTING, 0, 0);
functionName = "CreateFile, WriteHandle";
Tracer.Trace(MyDebugging.ResultOfAPICall(functionName));
Tracer.Trace(" FindTheHid(): handle valid, returned handle: " + writeHandle.ToString());
// Flush any waiting reports in the input buffer. (optional)
MyHid.FlushQueue(readHandle);
}
}
}
else
{
// The device wasn't detected.
Tracer.Error(string.Format("My Device not found - need a HID with vendorId={0}, productId={1}.", vendorId, productId));
}
return(myDeviceDetected);
}
catch (Exception ex)
{
Tracer.Error(ex);
throw;
}
}
/// <summary>
/// Call HID functions that use Win32 API functions to locate a HID-class device
/// by its Vendor ID and Product ID. Open a handle to the device.
/// </summary>
///
/// <returns>
/// True if the device is detected, False if not detected.
/// </returns>
private Boolean FindTheHid()
{
var devicePathName = new String[128];
String myDevicePathName = "";
try
{
_deviceHandleObtained = false;
CloseCommunications();
_myVendorId = 0x16c0;
_myProductId = 0x05df;
// Get the HID-class GUID.
Guid hidGuid = _myHid.GetHidGuid();
// Fill an array with the device path names of all attached HIDs.
Boolean availableHids = _myDeviceManagement.FindDeviceFromGuid(hidGuid, ref devicePathName);
// If there is at least one HID, attempt to read the Vendor ID and Product ID
// of each device until there is a match or all devices have been examined.
if (availableHids)
{
Int32 memberIndex = 0;
do
{
// Open the handle without read/write access to enable getting information about any HID, even system keyboards and mice.
_hidHandle = _myHid.OpenHandle(devicePathName[memberIndex], false);
if (!_hidHandle.IsInvalid)
{
// The returned handle is valid,
// so find out if this is the device we're looking for.
//_myHid.DeviceAttributes.Size = Marshal.SizeOf(_myHid.DeviceAttributes);
Boolean success = _myHid.GetAttributes(_hidHandle, ref _myHid.DeviceAttributes);
if (success)
{
//Debug.WriteLine(" HIDD_ATTRIBUTES structure filled without error.");
//Debug.WriteLine(" Structure size: " + _myHid.DeviceAttributes.Size);
//Debug.WriteLine(" Vendor ID: " + Convert.ToString(_myHid.DeviceAttributes.VendorID, 16));
//Debug.WriteLine(" Product ID: " + Convert.ToString(_myHid.DeviceAttributes.ProductID, 16));
//Debug.WriteLine(" Version Number: " + Convert.ToString(_myHid.DeviceAttributes.VersionNumber, 16));
if ((_myHid.DeviceAttributes.VendorID == _myVendorId) && (_myHid.DeviceAttributes.ProductID == _myProductId))
{
//Debug.WriteLine(" Handle obtained to my device");
// Display the information in form's list box.
//InfoBox.Text += "\nHandle obtained to my device:";
InfoBox.Text = " VID=" + Convert.ToString(_myHid.DeviceAttributes.VendorID, 16);
InfoBox.Text += " PID=" + Convert.ToString(_myHid.DeviceAttributes.ProductID, 16);
_deviceHandleObtained = true;
myDevicePathName = devicePathName[memberIndex];
}
else
{
// It's not a match, so close the handle.
_deviceHandleObtained = false;
_hidHandle.Close();
}
}
else
{
// There was a problem retrieving the information.
//Debug.WriteLine(" Error in filling HIDD_ATTRIBUTES structure.");
_deviceHandleObtained = false;
_hidHandle.Close();
}
}
// Keep looking until we find the device or there are no devices left to examine.
memberIndex = memberIndex + 1;
}while (!((_deviceHandleObtained || (memberIndex == devicePathName.Length))));
}
if (_deviceHandleObtained)
{
// The device was detected.
// Learn the capabilities of the device.
_myHid.Capabilities = _myHid.GetDeviceCapabilities(_hidHandle);
// Find out if the device is a system mouse or keyboard.
_hidUsage = _myHid.GetHidUsage(_myHid.Capabilities);
//Close the handle and reopen it with read/write access.
_hidHandle.Close();
_hidHandle = _myHid.OpenHandle(myDevicePathName, true);
if (_hidHandle.IsInvalid)
{
InfoBox.Text += "The device is a system " + _hidUsage + ".";
}
else
{
if (_myHid.Capabilities.InputReportByteLength > 0)
{
// Set the size of the Input report buffer.
var inputReportBuffer = new Byte[_myHid.Capabilities.InputReportByteLength];
_deviceData = new FileStream(_hidHandle, FileAccess.Read | FileAccess.Write, inputReportBuffer.Length, false);
inputReportBuf = new Byte[_myHid.Capabilities.InputReportByteLength];
}
if (_myHid.Capabilities.OutputReportByteLength > 0)
{
Byte[] outputReportBuffer = null;
}
// Flush any waiting reports in the input buffer. (optional)
_myHid.FlushQueue(_hidHandle);
}
ErrorBox.Text = "";
}
else
{
ErrorBox.Text = "Device not found.";
}
return(_deviceHandleObtained);
}
catch (Exception ex)
{
DisplayException(Name, ex);
throw;
}
}
public void connect(UInt16 vid, UInt16 pid, bool skip)
{
if (connected)
{
Log.Write(String.Format("USBInterface.connect() for already connected interface - vid{0}, pid={1}, skip={2}) begins\n", vid, pid, skip));
}
else
{
System.Guid Guid = new System.Guid(GUID_STRING);
Int32 index = 0;
Log.Write(String.Format("USBInterface.connect() begins vid{0}, pid={1}, skip={2}) begins\n", vid, pid, skip));
while (true)
{
bool bUseThisDevice = true;
if (!myDeviceManagement.FindDeviceFromGuid(Guid, out devicePathName, ref index))
{
throw new System.IO.IOException(String.Format("Unable to locate a USB device with GUID {0}, vid={1}, pid={2}, skip={3}", Guid, vid, pid, skip));
}
Log.Write(String.Format("USBInterface.connect(): Considering USB Device {0}\n", devicePathName));
UInt16 foundVid, foundPid;
DeviceManagement.parsePath(devicePathName, out foundVid, out foundPid);
Log.Write(String.Format("USBInterface.connect(): checking VID/PID - foundVID={0} foundPID={1}\n", foundVid, foundPid));
if (vid != 0)
{
bool bVIDMatch = (foundVid == vid);
bool bPIDMatch = (foundPid == pid);
Log.Write(String.Format("USBInterface.connect(): initally bVIDMatch={0} bPIDMatch={1}\n", bVIDMatch, bPIDMatch));
// a pid of 0xffff matches guide cameras
if (pid == 0xffff)
{
bPIDMatch = (foundPid == 507) || (foundPid == 509) || (foundPid == 517);
}
bUseThisDevice = (bVIDMatch && bPIDMatch);
Log.Write(String.Format("USBInterface.connect(): pre skip check bVIDMatch={0} bPIDMatch={1} bUseThisDevice={2}\n", bVIDMatch, bPIDMatch, bUseThisDevice));
if (skip)
{
bUseThisDevice = !bUseThisDevice;
}
Log.Write(String.Format("USBInterface.connect(): post skip check bVIDMatch={0} bPIDMatch={1} bUseThisDevice={2}\n", bVIDMatch, bPIDMatch, bUseThisDevice));
}
if (bUseThisDevice)
{
// For reasons I don't undersand, we can get a device handle for a device thatis already open,
// even though we specify no sharing of the file when we open it. So, in order to make sure
// that we don't open the same camera twice we create a mutex that has the same name as
// the device (execpt that we have to replace "\" with "/" because // mutex names cannot contain "\").
// If we find that the mutex already existed, we assume the device is already in use and keep looking.
String mutexName = devicePathName.Replace("\\", "/");
bool createdNew;
m_mutex = new Mutex(true, mutexName, out createdNew);
Log.Write(String.Format("USBInterface.connect(): mutexName={0} createdNew={1}\n", mutexName, createdNew));
if (!createdNew)
{
Log.Write(String.Format("USBInterface.connect(): mutex was already in use - closing handle and continuing search\n"));
}
else
{
Log.Write(String.Format("USBInterface: attempting to get a handle for USB Device {0}\n", devicePathName));
if (FileIO.GetDeviceHandle(devicePathName, out deviceHandle))
{
Log.Write(String.Format("USBInterface.connect(): deviceHandle.IsInvalid={0}\n", deviceHandle.IsInvalid));
connected = true;
vid = foundVid;
pid = foundPid;
break;
}
Log.Write(String.Format("USBInterface.connect(): Unable to get a device handle for GUID {0} using path {1} - skipping", Guid, devicePathName));
}
m_mutex.Close();
}
else
{
Log.Write(String.Format("USBInterface.connect(): skipping USB Device {0} because of skip/vid/pid\n", devicePathName));
}
}
}
}
/// <summary>
/// Uses a series of API calls to locate a HID-class device
/// by its Vendor ID and Product ID.
/// </summary>
///
/// <returns>
/// True if the device is detected, False if not detected.
/// </returns>
public static Boolean FindTheHid(
int myVendorID
, int myProductID
, ref IntPtr FrmMyHandle
, ref IntPtr deviceNotificationHandle
, ref Boolean exclusiveAccess
, ref String hidUsage
, ref Boolean myDeviceDetected
, ref String myDevicePathName
, ref FileStream fileStreamDeviceData
, ref SafeFileHandle hidHandle
, ref DeviceManagement MyDeviceManagement
, ref Hid MyHid
, ref string message
, ref string txtInputReportBufferSize
)
{
Boolean deviceFound = false;
String[] devicePathName = new String[128];
Guid hidGuid = Guid.Empty;
Int32 memberIndex = 0;
//Int32 myProductID = 0;
//Int32 myVendorID = 0;
Boolean success = false;
try
{
myDeviceDetected = false;
CloseCommunications(
ref myDeviceDetected
, ref fileStreamDeviceData
, ref hidHandle
);
// Get the device's Vendor ID and Product ID
//myVendorID = Main.CardReader_VID;
//myProductID = Main.CardReader_PID;
// ***
// API function: 'HidD_GetHidGuid
// Purpose: Retrieves the interface class GUID for the HID class.
// Accepts: 'A System.Guid object for storing the GUID.
// ***
Hid.HidD_GetHidGuid(ref hidGuid);
// Fill an array with the device path names of all attached HIDs.
deviceFound = MyDeviceManagement.FindDeviceFromGuid(hidGuid, ref devicePathName);
// If there is at least one HID, attempt to read the Vendor ID and Product ID
// of each device until there is a match or all devices have been examined.
if (deviceFound)
{
memberIndex = 0;
do
{
// ***
// API function:
// CreateFile
// Purpose:
// Retrieves a handle to a device.
// Accepts:
// A device path name returned by SetupDiGetDeviceInterfaceDetail
// The type of access requested (read/write).
// FILE_SHARE attributes to allow other processes to access the device while this handle is open.
// A Security structure or IntPtr.Zero.
// A creation disposition value. Use OPEN_EXISTING for devices.
// Flags and attributes for files. Not used for devices.
// Handle to a template file. Not used.
// Returns: a handle without read or write access.
// This enables obtaining information about all HIDs, even system
// keyboards and mice.
// Separate handles are used for reading and writing.
// ***
// Open the handle without read/write access to enable getting information about any HID, even system keyboards and mice.
hidHandle = FileIO.CreateFile(devicePathName[memberIndex], 0, FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE, IntPtr.Zero, FileIO.OPEN_EXISTING, 0, 0);
if (!hidHandle.IsInvalid)
{
// The returned handle is valid,
// so find out if this is the device we're looking for.
// Set the Size property of DeviceAttributes to the number of bytes in the structure.
MyHid.DeviceAttributes.Size = Marshal.SizeOf(MyHid.DeviceAttributes);
// ***
// API function:
// HidD_GetAttributes
// Purpose:
// Retrieves a HIDD_ATTRIBUTES structure containing the Vendor ID,
// Product ID, and Product Version Number for a device.
// Accepts:
// A handle returned by CreateFile.
// A pointer to receive a HIDD_ATTRIBUTES structure.
// Returns:
// True on success, False on failure.
// ***
success = Hid.HidD_GetAttributes(hidHandle, ref MyHid.DeviceAttributes);
if (success)
{
// Find out if the device matches the one we're looking for.
if ((MyHid.DeviceAttributes.VendorID == myVendorID) && (MyHid.DeviceAttributes.ProductID == myProductID))
{
// Display the information in form's list box.
message = "was found.";
myDeviceDetected = true;
// Save the DevicePathName for OnDeviceChange().
myDevicePathName = devicePathName[memberIndex];
}
else
{
// It's not a match, so close the handle.
myDeviceDetected = false;
hidHandle.Close();
}
}
else
{
// There was a problem in retrieving the information.
//Debug.WriteLine(" Error in filling HIDD_ATTRIBUTES structure.");
myDeviceDetected = false;
hidHandle.Close();
}
}
// Keep looking until we find the device or there are no devices left to examine.
memberIndex = memberIndex + 1;
}while (!((myDeviceDetected || (memberIndex == devicePathName.Length))));
}
if (myDeviceDetected)
{
// The device was detected.
// Register to receive notifications if the device is removed or attached.
success = MyDeviceManagement.RegisterForDeviceNotifications(myDevicePathName, FrmMyHandle, hidGuid, ref deviceNotificationHandle);
// Learn the capabilities of the device.
MyHid.Capabilities = MyHid.GetDeviceCapabilities(hidHandle);
if (success)
{
// Find out if the device is a system mouse or keyboard.
hidUsage = MyHid.GetHidUsage(MyHid.Capabilities);
// Get the Input report buffer size.
GetInputReportBufferSize(
ref exclusiveAccess
, ref hidHandle
, ref MyHid
, ref txtInputReportBufferSize
);
//Close the handle and reopen it with read/write access.
hidHandle.Close();
hidHandle = FileIO.CreateFile(myDevicePathName, FileIO.GENERIC_READ | FileIO.GENERIC_WRITE, FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE, IntPtr.Zero, FileIO.OPEN_EXISTING, 0, 0);
if (hidHandle.IsInvalid)
{
exclusiveAccess = true;
}
else
{
if (MyHid.Capabilities.InputReportByteLength > 0)
{
// Set the size of the Input report buffer.
Byte[] inputReportBuffer = null;
inputReportBuffer = new Byte[MyHid.Capabilities.InputReportByteLength];
fileStreamDeviceData = new FileStream(hidHandle, FileAccess.Read | FileAccess.Write, inputReportBuffer.Length, false);
}
if (MyHid.Capabilities.OutputReportByteLength > 0)
{
Byte[] outputReportBuffer = null;
outputReportBuffer = new Byte[MyHid.Capabilities.OutputReportByteLength];
}
// Flush any waiting reports in the input buffer. (optional)
MyHid.FlushQueue(hidHandle);
}
}
}
else
{
// The device wasn't detected.
myDeviceDetected = false;
message = "not found.";
}
return(myDeviceDetected);
}
catch (Exception ex)
{
DisplayException("FindTheHid", ex);
//throw;
}
return(false);
}
//TODO: Refatorar método
public bool Conectado()
{
if (UpdatedAt == null || (DateTime.Now - UpdatedAt).Seconds > 2)
{
string[] devicePathName = new string[128];
try
{
Guid empty = Guid.Empty;
MyDeviceDetected = false;
FileIOApiDeclarations.SECURITY_ATTRIBUTES lpSecurityAttributes = new FileIOApiDeclarations.SECURITY_ATTRIBUTES();
lpSecurityAttributes.lpSecurityDescriptor = 0;
lpSecurityAttributes.bInheritHandle = -1;
lpSecurityAttributes.nLength = Strings.Len(lpSecurityAttributes);
//short num1 = checked((short)Math.Round(Conversion.Val("&h" + vid)));
//short num2 = checked((short)Math.Round(Conversion.Val("&h" + pid)));
short num1 = checked ((short)Math.Round(Conversion.Val("&h0483")));
short num2 = checked ((short)Math.Round(Conversion.Val("&h0035")));
HidApiDeclarations.HidD_GetHidGuid(ref empty);
empty.ToString();
if (MyDeviceManagement.FindDeviceFromGuid(empty, ref devicePathName))
{
int index = 0;
do
{
HIDHandle = FileIOApiDeclarations.CreateFile(devicePathName[index], 0, 3, ref lpSecurityAttributes, 3, 0, 0);
if (HIDHandle != -1)
{
MyHID.DeviceAttributes.Size = Marshal.SizeOf((object)MyHID.DeviceAttributes);
bool flag;
if (HidApiDeclarations.HidD_GetAttributes(HIDHandle, ref MyHID.DeviceAttributes))
{
if ((int)MyHID.DeviceAttributes.VendorId == (int)num1 & (int)MyHID.DeviceAttributes.ProductId == (int)num2)
{
MyDeviceDetected = true;
MyDevicePathName = devicePathName[index];
NobreakInfo.StatusComunicacaoOk = true;
}
else
{
MyDeviceDetected = false;
flag = FileIOApiDeclarations.CloseHandle(HIDHandle);
}
}
else
{
MyDeviceDetected = false;
flag = FileIOApiDeclarations.CloseHandle(HIDHandle);
}
}
checked { ++index; }
}while (!(MyDeviceDetected | index == checked (Information.UBound((Array)devicePathName, 1) + 1)));
}
lastStatusConectado = MyDeviceDetected;
UpdatedAt = DateTime.Now;
return(MyDeviceDetected);
}
catch (Exception ex)
{
Console.WriteLine("ERRO!!! " + ex.Message);
//throw new NobreakNotConnectedException("Não foi possível conectar-se ao Nobreak");
}
}
return(lastStatusConectado);
}
public static bool FindNia(IntPtr Handle)
{
bool success = false;
try
{
// Get the guid for the system hid class
Guid hidGuid = Guid.Empty;
GenericHid.Hid.HidD_GetHidGuid(ref hidGuid);
// Find all devices of type hid
string[] deviceCollection = new String[128];
DeviceManagement deviceManagement = new DeviceManagement();
bool devicesFound = deviceManagement.FindDeviceFromGuid(hidGuid, ref deviceCollection);
// Did we find any hid devices ?
if (devicesFound)
{
int memberIndex = 0;
do
{
// try to get a handle on the current hid device in the list
hidHandle = GenericHid.FileIO.CreateFile(deviceCollection[memberIndex], 0, GenericHid.FileIO.FILE_SHARE_READ | GenericHid.FileIO.FILE_SHARE_WRITE, null, GenericHid.FileIO.OPEN_EXISTING, 0, 0);
if (!hidHandle.IsInvalid)
{
// Set the Size property of DeviceAttributes to the number of bytes in the structure.
MyHid.DeviceAttributes.Size = Marshal.SizeOf(MyHid.DeviceAttributes);
// try to get the hid's information
success = GenericHid.Hid.HidD_GetAttributes(hidHandle, ref MyHid.DeviceAttributes);
if (success)
{
if ((MyHid.DeviceAttributes.VendorID == 4660) & (MyHid.DeviceAttributes.ProductID == 0))
{
NiaDetected = true;
// Save the DevicePathName for OnDeviceChange().
NiaPathName = deviceCollection[memberIndex];
}
else
{
NiaDetected = false;
hidHandle.Close();
}
}
else
{
NiaDetected = false;
hidHandle.Close();
}
}
// Keep looking until we find the device or there are no devices left to examine.
memberIndex = memberIndex + 1;
} while (!((NiaDetected | (memberIndex == deviceCollection.Length))));
// Did we find a NIA ?
if (NiaDetected)
{
// The device was detected.
// Register to receive notifications if the device is removed or attached.
success = deviceManagement.RegisterForDeviceNotifications(NiaPathName, Handle, hidGuid, ref deviceNotificationHandle);
if (success)
{
// Get handles to use in requesting Input and Output reports.
readHandle = GenericHid.FileIO.CreateFile(NiaPathName, GenericHid.FileIO.GENERIC_READ, GenericHid.FileIO.FILE_SHARE_READ | GenericHid.FileIO.FILE_SHARE_WRITE, null, GenericHid.FileIO.OPEN_EXISTING, GenericHid.FileIO.FILE_FLAG_OVERLAPPED, 0);
if (!readHandle.IsInvalid)
{
writeHandle = GenericHid.FileIO.CreateFile(NiaPathName, GenericHid.FileIO.GENERIC_WRITE, GenericHid.FileIO.FILE_SHARE_READ | GenericHid.FileIO.FILE_SHARE_WRITE, null, GenericHid.FileIO.OPEN_EXISTING, 0, 0);
MyHid.FlushQueue(readHandle);
}
}
}
}
return(NiaDetected);
}
catch (Exception ex)
{
throw ex;
}
}
