/// <summary>
/// Adds SampleGrabber for screenshot making.
/// </summary>
private void AddFilter_SampleGrabber()
{
// Get the SampleGrabber interface
SampleGrabber = new SampleGrabber() as ISampleGrabber;
// Configure the sample grabber
SampleGrabberFilter = SampleGrabber as IBaseFilter;
_pSampleGrabberHelper = new SampleGrabberHelper(SampleGrabber, false);
_pSampleGrabberHelper.ConfigureMode();
// Add the sample grabber to the graph
int hr = FilterGraph.AddFilter(SampleGrabberFilter, "Sample Grabber");
DsError.ThrowExceptionForHR(hr);
return;
}
/// <summary>
/// Close and dispose all camera and DirectX stuff.
/// </summary>
public void Dispose()
{
_bGraphIsBuilt = false;
// stop rendering
if (MediaControl != null)
{
try
{
MediaControl.StopWhenReady();
MediaControl.Stop();
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
if (_bHandlersAdded)
{
// remove handlers when they are no more needed
_bHandlersAdded = false;
_DisplayPanel.Paint -= new PaintEventHandler(HostingControl_Paint);
_DisplayPanel.Resize -= new EventHandler(HostingControl_ResizeMove);
_DisplayPanel.Move -= new EventHandler(HostingControl_ResizeMove);
SystemEvents.DisplaySettingsChanged -= new EventHandler(SystemEvents_DisplaySettingsChanged);
}
// Dispose Managed Direct3D objects
if (_pSampleGrabberHelper != null)
{
_pSampleGrabberHelper.Dispose();
_pSampleGrabberHelper = null;
}
if (VMRenderer != null)
{
Marshal.ReleaseComObject(VMRenderer);
VMRenderer = null;
WindowlessCtrl = null;
}
if (FilterGraph != null)
{
Marshal.ReleaseComObject(FilterGraph);
FilterGraph = null;
MediaControl = null;
}
if (SmartTee != null)
{
Marshal.ReleaseComObject(SmartTee);
SmartTee = null;
}
if (SampleGrabber != null)
{
Marshal.ReleaseComObject(SampleGrabber);
SampleGrabber = null;
SampleGrabberFilter = null;
}
if (CaptureFilter != null)
{
Marshal.ReleaseComObject(CaptureFilter);
CaptureFilter = null;
}
return;
}