CTransInPlaceInputPin.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.
Syntax
HRESULT CheckMediaType(
const CMediaType *pmt
);
Parameters
-
pmt
-
Pointer to a CMediaType object that contains the proposed media type.
Return value
Returns S_OK if the proposed media type is acceptable. Otherwise, returns S_FALSE or an error code.
Remarks
This method overrides the CTransformInputPin::CheckMediaType method. It calls the filter's CTransformFilter::CheckInputType method to check the input type. If the output pin is connected, this method also calls the IPin::QueryAccept method on the downstream input pin.
Requirements
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