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IWMResizerProps::SetClipRegion method (wmcodecdsp.h)

  • Article

Sets the source rectangle.

Syntax

HRESULT SetClipRegion(
  [in] LONG lClipOriXSrc,
  [in] LONG lClipOriYSrc,
  [in] LONG lClipWidthSrc,
  [in] LONG lClipHeightSrc
);

Parameters

[in] lClipOriXSrc

Specifies the left edge of the source rectangle, in pixels.

[in] lClipOriYSrc

Specifies the top edge of the source rectangle, in pixels.

[in] lClipWidthSrc

Specifies the width of the source rectangle, in pixels.

[in] lClipHeightSrc

Specifies the height of the source rectangle, in pixels.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code Description
S_OK
 The method succeeded.

Remarks

By default, the video resizer copies the entire video frame. When you call this method, the video resizer crops the video to the source rectangle and copies that portion to the output buffer.

This method is equivalent to setting the following properties:

Requirements

Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header wmcodecdsp.h

See also

IWMResizerProps Interface