CBaseControlVideo.CheckTargetRect method
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 CheckTargetRect method determines if a target rectangle is valid.
Syntax
virtual HRESULT CheckTargetRect(
RECT *pTargetRect
);
Parameters
-
pTargetRect
-
Pointer to the target rectangle to check.
Return value
Returns E_INVALIDARG if not valid; otherwise, returns NOERROR (S_OK).
Remarks
This member function determines if the target rectangle requested is valid. Because the destination rectangle specifies a position in the logical client of the window, the coordinates can be negative, although the overall width and height cannot be zero or a negative value.
Requirements
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