CTransInPlaceOutputPin::CheckMediaType
| Microsoft DirectShow 9.0 |
CTransInPlaceOutputPin::CheckMediaType
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 an HRESULT value. Possible values include those shown in the following table.
| Value | Description |
| S_OK | Success. |
| VFW_E_TYPE_NOT_ACCEPTED | Media type not accepted. |
Remarks
This method overrides the CTransformOutputPin::CheckMediaType method.
If the filter is already streaming and is using two allocators, this method rejects any format changes. Otherwise, this method calls the filter's CTransformFilter::CheckInputType method to check the media type. If the input pin is connected, it also calls the IPin::QueryAccept method on the upstream output pin.
Requirements
** Header:** Declared in Transip.h; include Streams.h.
** Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).
See Also