public override void DisConnect()
{
if (_camera.handle != IntPtr.Zero)
{
SniCamResult sResult = DS_U3Wrapper.SniCamReleaseCamera(_camera.handle);
sResult = DS_U3Wrapper.SniCamTerminate();
_camera.handle = IntPtr.Zero;
}
//unload the SniCam.dll
//IntPtr nikonDll = LoadLibrary("SniCam.dll");
//FreeLibrary(nikonDll);
//FreeLibrary(nikonDll);
}
bool AutoManual(int featureId, bool auto)
{
bool result = false;
DS_U3Wrapper.SniFeatureState state = new DS_U3Wrapper.SniFeatureState();
DS_U3Wrapper.SniCamGetState(_camera.handle, featureId, out state);
if (auto)
{
if ((state.bits & 0x02000000U) != 0)
{
state.bits |= (uint)NikonFeatureState.sniAutoState;
SniCamResult res = DS_U3Wrapper.SniCamSetState(_camera.handle, featureId, state);
if (res != SniCamResult.SNI_OK)
{
MessageBox.Show("Failed to set state, Error Code: " + res, "Error");
}
else
{
result = true;
}
}
}
else
{
if ((state.bits & 0x01000000U) != 0)
{
state.bits &= ~((uint)NikonFeatureState.sniAutoState);
SniCamResult res = DS_U3Wrapper.SniCamSetState(_camera.handle, featureId, state);
if (res != SniCamResult.SNI_OK)
{
MessageBox.Show("Failed to set state, Error Code: " + res, "Error");
}
else
{
result = true;
}
}
}
return(result);
}
bool OnePush(int featureId)
{
bool result = false;
DS_U3Wrapper.SniFeatureState state = new DS_U3Wrapper.SniFeatureState();
DS_U3Wrapper.SniCamGetState(_camera.handle, featureId, out state);
if ((state.bits & 0x10000000U) != 0)
{
state.bits |= (uint)NikonFeatureState.sniOnePushState;
SniCamResult res = DS_U3Wrapper.SniCamSetState(_camera.handle, featureId, state);
if (res != SniCamResult.SNI_OK)
{
MessageBox.Show("Failed to set OnePush, Error Code: " + res, "Error");
}
else
{
result = true;
}
}
return(result);
}
public override BitmapSource GetImage(DoWorkEventArgs e)
{
NikonCameraImage helper = (NikonCameraImage)e.Argument;
BitmapSource source = null, orginalSource = null;
try
{
SniCamResult sResult = DS_U3Wrapper.SniCamGetNextImage(helper.camera.handle,
helper.stop, out helper.format, out helper.index, ref helper.image);
if (sResult < SniCamResult.SNI_OK)
{
throw new Exception("SniCamGetNextImage returned " + sResult);
}
DS_U3Wrapper.SniImageFormat format = (DS_U3Wrapper.SniImageFormat)Marshal.PtrToStructure(
helper.format, typeof(DS_U3Wrapper.SniImageFormat));
//Allocate space for image buffer
IntPtr buffer = IntPtr.Zero;
byte[] managedBuffer;
try
{
buffer = Marshal.AllocHGlobal(2 * format.buf_size.ToInt32());
sResult = DS_U3Wrapper.SniCamGetImageData(helper.camera.handle,
helper.image, (uint)(2 * format.buf_size.ToInt32()), ref buffer);
if (sResult != SniCamResult.SNI_OK)
{
DS_U3Wrapper.SniCamReleaseImage(helper.camera.handle, ref helper.image);
throw new Exception("SniCamGetImageData returned " + sResult);
}
if (format.mode == ESniColorMode.sniRgb24)
{
managedBuffer = new byte[format.buf_size.ToInt32()];
Marshal.Copy(buffer, managedBuffer, 0, format.buf_size.ToInt32());
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(format.width, format.height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
System.Drawing.Imaging.BitmapData bmpData = bmp.LockBits(
new System.Drawing.Rectangle(0, 0, bmp.Width, bmp.Height),
System.Drawing.Imaging.ImageLockMode.WriteOnly, bmp.PixelFormat);
Marshal.Copy(managedBuffer, 0, bmpData.Scan0, managedBuffer.Length);
bmp.UnlockBits(bmpData);
IntPtr hBitmap = bmp.GetHbitmap();
BitmapSizeOptions sizeOptions = BitmapSizeOptions.FromEmptyOptions();
try
{
orginalSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(hBitmap, IntPtr.Zero,
System.Windows.Int32Rect.Empty, sizeOptions);
}
finally
{
DeleteObject(hBitmap);
}
if ((Properties.Settings.Default.CropHeight == 0 && Properties.Settings.Default.CropWidth == 0) ||
(Properties.Settings.Default.CropHeight + Properties.Settings.Default.CropTop > orginalSource.Height) ||
(Properties.Settings.Default.CropWidth + Properties.Settings.Default.CropLeft > orginalSource.Width)
)
{
source = orginalSource;
CropImageWidth = 0;
CropImageHeight = 0;
}
else
{
source = new CroppedBitmap(orginalSource,
new System.Windows.Int32Rect((int)Properties.Settings.Default.CropLeft,
(int)Properties.Settings.Default.CropTop,
(int)(Properties.Settings.Default.CropWidth == 0 ?
orginalSource.Width : Properties.Settings.Default.CropWidth),
(int)(Properties.Settings.Default.CropHeight == 0 ?
orginalSource.Height : Properties.Settings.Default.CropHeight)));
CropImageWidth = source.Width;
CropImageHeight = source.Height;
}
source.Freeze();
ImageWidth = orginalSource.Width;
ImageHeight = orginalSource.Height;
sResult = DS_U3Wrapper.SniCamReleaseImage(helper.camera.handle, ref helper.image);
if (sResult != SniCamResult.SNI_OK)
{
throw new Exception("SniCamReleaseImage returned " + sResult);
}
}
else
{
App.LogEntry.AddEntry("Nikon Camera is not in ESniColorMode.sniRgb24 - please reset it.");
}
}
catch (Exception /*ex*/)
{
throw;
}
finally
{
if (buffer != IntPtr.Zero)
{
Marshal.FreeHGlobal(buffer);
buffer = IntPtr.Zero;
}
}
}
catch (Exception ex)
{
App.LogEntry.AddEntry("Failed to get image: " + ex.Message);
}
finally
{
}
return(source);
}
public override bool Connect()
{
bool result = false;
try
{
//discover camera
_camera = new DS_U3Wrapper.SniCameraInfo();
Int32 cameraCount = 0;
IntPtr unmanagedCameraInfoAddr = IntPtr.Zero;
SniCamResult sResult = DS_U3Wrapper.SniCamDiscoverCameras(out unmanagedCameraInfoAddr, out cameraCount);
if (sResult != SniCamResult.SNI_OK)
{
throw new Exception("Could not connect to the DS-U3 successfully");
}
if (cameraCount == 0)
{
throw new Exception("DS-U3 not available or no cameras connected.");
}
// Marshal the data at the returned pointer into a managed object
_camera = (DS_U3Wrapper.SniCameraInfo)Marshal.PtrToStructure(unmanagedCameraInfoAddr, typeof(DS_U3Wrapper.SniCameraInfo));
unmanagedCameraInfoAddr = IntPtr.Zero;
//open camera
IntPtr cameraHandle = IntPtr.Zero;
sResult = DS_U3Wrapper.SniCamOpenCamera(ref _camera, out cameraHandle);
if (sResult != SniCamResult.SNI_OK)
{
throw new Exception("Could not open Camera Handle");
}
_camera.handle = cameraHandle;
// Need to check status of camera. According to camera logs,
// if the Nikon software finds the camera in a status other
// than available, it requests the driver version, then closes
// and opens the camera. Not sure why, but prevents the controller
// from simply preventing communication with the camera.
if (_camera.status != 0)
{
StringBuilder version = new StringBuilder(34);
DS_U3Wrapper.SniCamGetDriverVersion(_camera.handle, version);
DS_U3Wrapper.SniCamCloseCamera(_camera.handle);
_camera.handle = IntPtr.Zero;
sResult = DS_U3Wrapper.SniCamOpenCamera(ref _camera, out cameraHandle);
if (sResult != SniCamResult.SNI_OK)
{
throw new Exception("Could not open Camera Handle");
}
_camera.handle = cameraHandle;
}
_features = new Dictionary <Features, DS_U3Wrapper.SniFeature>();
IntPtr p;
sResult = DS_U3Wrapper.SniCamGetFeatures(_camera.handle, out p);
if (sResult != SniCamResult.SNI_OK)
{
throw new Exception("Could not get Camera features");
}
int numFeatures = Marshal.ReadInt32(p);
//move to first feature element
p = (IntPtr)(p.ToInt32() + Marshal.SizeOf(typeof(DS_U3Wrapper.SniFeatures)) -
Marshal.SizeOf(typeof(IntPtr)));
// Setup a mapping from feature name to feature ID number, in order to more easily
// access features by name.
for (int i = 0; i < numFeatures; i++)
{
DS_U3Wrapper.SniFeature feature = (DS_U3Wrapper.SniFeature)Marshal.PtrToStructure(p,
typeof(DS_U3Wrapper.SniFeature));
foreach (Features featureName in Enum.GetValues(typeof(Features)))
{
if (featureName.ToString().Equals(feature.name))
{
_features.Add(featureName, feature);
}
}
//move to next feature element
p = (IntPtr)(p.ToInt32() + Marshal.SizeOf(typeof(DS_U3Wrapper.SniFeature)));
}
//initialise settings
InitializeSettings();
result = true;
}
catch (Exception /*ex*/)
{
if (_camera.handle != IntPtr.Zero)
{
DS_U3Wrapper.SniCamCloseCamera(_camera.handle);
_camera.handle = IntPtr.Zero;
}
result = false;
}
return(result);
}
