CSourceStream.CheckMediaType 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]
The CheckMediaType method determines if the pin accepts a specific media type. This method implements the pure virtual CBasePin::CheckMediaType method.
Syntax
virtual HRESULT CheckMediaType(
const CMediaType *pMediaType
);
Parameters
-
pMediaType
-
Pointer to a CMediaType object that contains the proposed media type.
Return value
Returns one of the HRESULT values shown in the following table.
| Return code | Description |
|---|---|
|
This pin supports this media type. |
|
The pin does not support this media type. |
Remarks
By default, the pin supports a single media type. This method retrieves the supported type by calling the single-parameter version of the CSourceStream::GetMediaType method, and compares it to the proposed type. If your pin supports more than one media type, override this method.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|