IVMRMixerControl::GetOutputRect method (strmif.h)
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 GetOutputRect method retrieves the position of this stream's video rectangle within the composition rectangle.
Syntax
HRESULT GetOutputRect(
[in] DWORD dwStreamID,
[out] NORMALIZEDRECT *pRect
);
Parameters
[in] dwStreamID
Specifies the input stream.
[out] pRect
Pointer to a NORMALIZEDRECT structure that receives the destination rectangle in composition space.
Return value
If the method succeeds, it returns S_OK. If it fails, it returns an error code.
| Return code | Description |
|---|---|
|
pRect is invalid. |
|
The pin is not connected. |
Remarks
Because this rectangle exists in compositional space, there is no such thing as an "invalid" rectangle. For example, if left is greater than right, it means the video is mirrored in the x direction. An empty rectangle turns off this stream.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP with SP1 [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |