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 uint CameraPropertyChanged(uint inEvent, uint inPropertyID, uint inParam, IntPtr inContext)
{
_cameraNotifications.Log(string.Format("Camera property changed: {0}, {1}, {2}", SDKHelper.DecodeEvent(inEvent), SDKHelper.DecodeProperty(inPropertyID), inParam));
lock (_eventHandlersSync)
{
foreach (CameraEvent cameraEvent in _eventHandlers)
{
cameraEvent.Process(inPropertyID, inParam);
}
_eventHandlers.RemoveAll(cameraEvent => cameraEvent.RunOnce);
}
return(EDSDK.EDS_ERR_OK);
}
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));
}
private static EDSDK.EdsDirectoryItemInfo GetDirectoryItemInfo(IntPtr inRef)
{
EDSDK.EdsDirectoryItemInfo directoryItemInfo;
SDKHelper.CheckError(EDSDK.EdsGetDirectoryItemInfo(inRef, out directoryItemInfo));
return(directoryItemInfo);
}
public void LockUI()
{
CameraAlreadyDisposedException.ThrowIf(_disposed);
SDKHelper.CheckError(EDSDK.EdsSendStatusCommand(_pointer, EDSDK.CameraState_UILock, 0));
}
public void SetProperty <T>(uint propertyId, T value)
{
CameraAlreadyDisposedException.ThrowIf(_disposed);
SDKHelper.CheckError(EDSDK.EdsSetPropertyData(_pointer, propertyId, 0, sizeof(int), value));
}
private void UnInitialize()
{
Array.ForEach(_processors.Values.ToArray(), cameraProcessor => cameraProcessor.Dispose());
SDKHelper.CheckError(EDSDK.EdsRelease(_cameraListPointer));
SDKHelper.CheckError(EDSDK.EdsTerminateSDK());
}
