IMediaObject::GetOutputCurrentType
| Microsoft DirectShow 9.0 |
IMediaObject::GetOutputCurrentType
The GetOutputCurrentType method retrieves the media type that was set for an output stream, if any.
Syntax
HRESULT GetOutputCurrentType(
DWORD dwOutputStreamIndex,
DMO_MEDIA_TYPE *pmt
);
Parameters
dwOutputStreamIndex
Zero-based index of an output stream on the DMO.
pmt
[out] Pointer to a DMO_MEDIA_TYPE structure allocated by the caller. The method fills the structure with the media type.
Return Value
Returns an HRESULT value. Possible values include those in the following table.
| Return Code | Description |
| DMO_E_INVALIDSTREAMINDEX | Invalid stream index. |
| DMO_E_TYPE_NOT_SET | Media type was not set. |
| E_OUTOFMEMORY | Insufficient memory. |
| S_OK | Success. |
Remarks
The caller must set the media type for the stream before calling this method. To set the media type, call the IMediaObject::SetOutputType method.
If the method succeeds, call MoFreeMediaType to free the format block.
Requirements
Header: Declared in Mediaobj.h; include Dmo.h
Library: Dmoguids.lib.
See Also