IDirectDrawVideo::CanUseScanLine method (amvideo.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 CanUseScanLine method determines whether the renderer will check the current scan line when drawing.

Syntax

HRESULT CanUseScanLine(
  long *UseScanLine
);

Parameters

UseScanLine

Pointer to a value indicating whether the renderer will use scan line information. OATRUE indicates the renderer will check the current scan line when drawing; OAFALSE indicates it will not.

Return value

Returns an HRESULT value.

Remarks

For a description of the use of scan line detection in the DirectShow video renderer, see IDirectDrawVideo::UseScanLine.

Requirements

See also

Error and Success Codes

IDirectDrawVideo Interface