CBaseControlVideo.CheckSourceRect method

  • Article

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]

Determines if a source rectangle is valid.

Syntax

virtual HRESULT CheckSourceRect(
   RECT *pSourceRect
);

Parameters

pSourceRect

Pointer to the source rectangle to check.

Return value

Returns E_INVALIDARG if not valid; otherwise, returns NOERROR (S_OK).

Remarks

This member function checks that the source rectangle requested does not exceed the available source video. The left and top coordinates cannot be negative, and the width and height cannot exceed the right and bottom of the video.

Requirements

Requirement Value
Header
Ctlutil.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CBaseControlVideo Class