IMixerOCX::SetDrawRegion method (mixerocx.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SetDrawRegion
method specifies the location and dimensions of the video and clipping rectangles in screen coordinates.
Syntax
HRESULT SetDrawRegion(
[in] LPPOINT lpptTopLeftSC,
[in] LPCRECT prcDrawCC,
[in] LPCRECT lprcClip
);
Parameters
[in] lpptTopLeftSC
Specifies the top left of the video rectangle in screen coordinates. (The Overlay Mixer filter ignores this parameter. This parameter should be set to NULL.)
[in] prcDrawCC
Specifies the video rectangle in screen coordinates. This parameter cannot be NULL.
[in] lprcClip
Specifies the clipping rectangle in screen coordinates. This parameter cannot be NULL.
Return value
The method returns an HRESULT value. Possible values include those in the following table.
Return code | Description |
---|---|
|
The method succeeded. |
|
Either prcDrawCC or lprcClip are NULL. |
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows 2000 Professional [desktop apps only] |
Minimum supported server | Windows 2000 Server [desktop apps only] |
Target Platform | Windows |
Header | mixerocx.h |
Library | Strmiids.lib |