private uint DownloadImage(uint inEvent, IntPtr inRef, IntPtr inContext)
{
_cameraNotifications.Log(string.Format("Camera event: {0}", SDKHelper.DecodeEvent(inEvent)));
lock (_synchronizationObject)
{
try
{
if (inEvent == EDSDK.ObjectEvent_DirItemRequestTransfer)
{
if (_imageHandler != null)
{
_imageHandler.Handle(GetImageFile(inRef, _folder));
}
_cameraNotifications.CameraDone();
}
if (inEvent == EDSDK.ObjectEvent_DirItemCreated)
{
_cameraNotifications.CameraDone();
}
}
finally
{
if (inRef != IntPtr.Zero)
{
SDKHelper.CheckError(EDSDK.EdsRelease(inRef));
}
}
return(0);
}
}
public void DownloadLiveViewImage(Action <MemoryStream, uint> onImageRecieved)
{
IntPtr stream = IntPtr.Zero;
IntPtr image = IntPtr.Zero;
IntPtr pointer = IntPtr.Zero;
uint size = 0;
try
{
SDKHelper.CheckError(EDSDK.EdsCreateMemoryStream(BUFFER_SIZE, out stream));
SDKHelper.CheckError(EDSDK.EdsCreateEvfImageRef(stream, out image));
SDKHelper.CheckError(EDSDK.EdsDownloadEvfImage(_pointer, image));
SDKHelper.CheckError(EDSDK.EdsGetPointer(stream, out pointer));
SDKHelper.CheckError(EDSDK.EdsGetLength(stream, out size));
onImageRecieved(CopyToMemoryStream(pointer, size), size);
SDKHelper.CheckError(EDSDK.EdsRelease(image));
SDKHelper.CheckError(EDSDK.EdsRelease(stream));
}
catch (SDKComeBackLaterException)
{
}
}
private void LoadCamerasList(IntPtr aCameraListPointer)
{
int cameraCount;
SDKHelper.CheckError(EDSDK.EdsGetChildCount(aCameraListPointer, out cameraCount));
IntPtr[] pointers = GetCameraPointers(aCameraListPointer, cameraCount);
Dictionary <IntPtr, ICameraProcessor> temporary = new Dictionary <IntPtr, ICameraProcessor>();
for (int i = 0; i < pointers.Length; ++i)
{
IntPtr pointer = pointers[i];
if (_processors.ContainsKey(pointer))
{
temporary.Add(pointer, _processors[pointer]);
_processors.Remove(pointer);
}
else
{
temporary.Add(pointer, new CameraProcessor(pointer, _cameraNotifications));
}
}
Array.ForEach(_processors.Values.ToArray(), cameraProcessor => cameraProcessor.Dispose());
_processors = temporary;
}
private void Initialize()
{
SDKHelper.CheckError(EDSDK.EdsInitializeSDK());
SDKHelper.CheckError(EDSDK.EdsGetCameraList(out _cameraListPointer));
LoadCamerasList(_cameraListPointer);
}
private static IntPtr GetFileStream(string filename)
{
IntPtr stream;
SDKHelper.CheckError(EDSDK.EdsCreateFileStream(filename, EDSDK.EdsFileCreateDisposition.CreateAlways,
EDSDK.EdsAccess.ReadWrite, out stream));
return(stream);
}
private string GetStringProperty(uint aPropertyId)
{
CameraAlreadyDisposedException.ThrowIf(_disposed);
string result;
SDKHelper.CheckError(EDSDK.EdsGetPropertyData(_pointer, aPropertyId, 0, out result));
return(result);
}
private void SendShootCommand(IImageHandler imageHandler, uint command, int value)
{
CameraAlreadyDisposedException.ThrowIf(_disposed);
lock (_synchronizationObject)
{
SDKHelper.CheckError(EDSDK.EdsSendCommand(_pointer, command, value));
_imageHandler = imageHandler;
}
}
public void PressShutterButton(IImageHandler imageHandler)
{
CameraAlreadyDisposedException.ThrowIf(_disposed);
lock (_synchronizationObject)
{
SDKHelper.CheckError(EDSDK.EdsSendCommand(_pointer, EDSDK.CameraCommand_PressShutterButton, (int)EDSDK.EdsShutterButton.CameraCommand_ShutterButton_Completely_NonAF));
SDKHelper.CheckError(EDSDK.EdsSendCommand(_pointer, EDSDK.CameraCommand_PressShutterButton, (int)EDSDK.EdsShutterButton.CameraCommand_ShutterButton_OFF));
_imageHandler = imageHandler;
}
}
public void Dispose()
{
_folder.Dispose();
if (_shouldRelease)
{
SDKHelper.CheckError(EDSDK.EdsCloseSession(_pointer));
SDKHelper.CheckError(EDSDK.EdsRelease(_pointer));
}
_disposed = true;
}
public void Shoot(IImageHandler imageHandler)
{
EDSDK.EdsCapacity capacity = new EDSDK.EdsCapacity();
capacity.BytesPerSector = 1000;
capacity.NumberOfFreeClusters = (int)UInt16.MaxValue;
capacity.Reset = 1;
SDKHelper.CheckError(EDSDK.EdsSetCapacity(_pointer, capacity));
SendShootCommand(imageHandler, EDSDK.CameraCommand_TakePicture, (int)0);
}
private static IntPtr[] GetCameraPointers(IntPtr aCameraListPointer, int cameraCount)
{
IntPtr[] pointers = new IntPtr[cameraCount];
for (int i = 0; i < cameraCount; ++i)
{
IntPtr cameraPointer;
SDKHelper.CheckError(EDSDK.EdsGetChildAtIndex(aCameraListPointer, i, out cameraPointer));
pointers[i] = cameraPointer;
}
return(pointers);
}
public Camera(IntPtr aPointer, ICameraNotifications aCameraNotifications)
{
_onCameraEvent = DownloadImage;
_onCameraStateChanged = CameraStateChanged;
_onCameraPropertyChanged = CameraPropertyChanged;
_pointer = aPointer;
_cameraNotifications = aCameraNotifications;
_eventHandlers = new List <CameraEvent>();
SDKHelper.CheckError(EDSDK.EdsOpenSession(_pointer));
SDKHelper.CheckError(EDSDK.EdsSetObjectEventHandler(_pointer, EDSDK.ObjectEvent_All, _onCameraEvent, IntPtr.Zero));
SDKHelper.CheckError(EDSDK.EdsSetCameraStateEventHandler(_pointer, EDSDK.StateEvent_All, _onCameraStateChanged, IntPtr.Zero));
SDKHelper.CheckError(EDSDK.EdsSetPropertyEventHandler(_pointer, EDSDK.PropertyEvent_All, _onCameraPropertyChanged, IntPtr.Zero));
}
public uint[] GetAvailableValues(uint aPropertyType)
{
CameraAlreadyDisposedException.ThrowIf(_disposed);
EDSDK.EdsPropertyDesc propertyDesc;
try
{
SDKHelper.CheckError(EDSDK.EdsGetPropertyDesc(_pointer, aPropertyType, out propertyDesc));
int[] result = new int[propertyDesc.NumElements];
Array.Copy(propertyDesc.PropDesc, result, result.Length);
return(Array.ConvertAll(result, new Converter <int, uint>(int32 => Convert.ToUInt32(int32))));
}
catch (SDKInvalidParameterExeption)
{
return(new uint[0]);
}
}
private ImageFile GetImageFile(IntPtr inRef, Folder aFolder)
{
EDSDK.EdsDirectoryItemInfo directoryItemInfo = GetDirectoryItemInfo(inRef);
string filename = aFolder.ComposeFilename(directoryItemInfo.szFileName);
IntPtr stream = GetFileStream(filename);
try
{
SDKHelper.CheckError(EDSDK.EdsDownload(inRef, directoryItemInfo.Size, stream));
SDKHelper.CheckError(EDSDK.EdsDownloadComplete(inRef));
}
catch
{
SDKHelper.CheckError(EDSDK.EdsDownloadCancel(inRef));
throw;
}
finally
{
SDKHelper.CheckError(EDSDK.EdsRelease(stream));
}
return(new ImageFile(File.ReadAllBytes(filename), directoryItemInfo.szFileName));
}
private void UnInitialize()
{
Array.ForEach(_processors.Values.ToArray(), cameraProcessor => cameraProcessor.Dispose());
SDKHelper.CheckError(EDSDK.EdsRelease(_cameraListPointer));
SDKHelper.CheckError(EDSDK.EdsTerminateSDK());
}
public void MoveFocus(uint value)
{
SDKHelper.CheckError(EDSDK.EdsSendCommand(_pointer, EDSDK.CameraCommand_DriveLensEvf, (int)value));
}
public void KeepALive()
{
CameraAlreadyDisposedException.ThrowIf(_disposed);
SDKHelper.CheckError(EDSDK.EdsSendCommand(_pointer, EDSDK.CameraCommand_ExtendShutDownTimer, 0));
}
public void SetProperty <T>(uint propertyId, T value)
{
CameraAlreadyDisposedException.ThrowIf(_disposed);
SDKHelper.CheckError(EDSDK.EdsSetPropertyData(_pointer, propertyId, 0, sizeof(int), value));
}
public void LockUI()
{
CameraAlreadyDisposedException.ThrowIf(_disposed);
SDKHelper.CheckError(EDSDK.EdsSendStatusCommand(_pointer, EDSDK.CameraState_UILock, 0));
}
private static EDSDK.EdsDirectoryItemInfo GetDirectoryItemInfo(IntPtr inRef)
{
EDSDK.EdsDirectoryItemInfo directoryItemInfo;
SDKHelper.CheckError(EDSDK.EdsGetDirectoryItemInfo(inRef, out directoryItemInfo));
return(directoryItemInfo);
}
