IMediaDet::GetSampleGrabber method
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
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.
Syntax
HRESULT GetSampleGrabber(
[out] ISampleGrabber **ppVal
);
Parameters
-
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.
Remarks
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.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|
See also