IMediaDet::GetSampleGrabber method

Note  [Deprecated. This API may be removed from future releases of Windows.]

The GetSampleGrabber method retrieves a pointer to the ISampleGrabber interface, which enables an application to retrieve individual samples from a media stream.


HRESULT GetSampleGrabber(
  [out] ISampleGrabber **ppVal


ppVal [out]

Receives a pointer to the ISampleGrabber interface.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.


Call IMediaDet::EnterBitmapGrabMode before calling this method. The ISampleGrabber interface enables you to retrieve individual media samples from the stream. If you just need a bitmap from a video frame, call the IMediaDet::GetBitmapBits method instead. The ISampleGrabber interface is more flexible, but requires more work by the application.

If this method succeeds, the ISampleGrabber interface that it returns has an outstanding reference count. Be sure to release the interface when you are finished using it.

Note  The header file Qedit.h is not compatible with Direct3D headers later than version 7.
Note  To obtain Qedit.h, download the Microsoft Windows SDK Update for Windows Vista and .NET Framework 3.0. Qedit.h is not available in the Microsoft Windows SDK for Windows 7 and .NET Framework 3.5 Service Pack 1.






See also

IMediaDet Interface
Error and Success Codes