IDirectDrawVideoPort::GetVideoLine

The IDirectDrawVideoPort::GetVideoLine method retrieves the current line of video being written to the frame buffer.

HRESULT GetVideoLine(
  LPDWORD lpdwLine  
);
 

Parameters

lpdwLine

Address of a variable that will be filled with a value indicating the video line currently being written to the frame buffer.

Return Values

If the method succeeds, the return value is DD_OK.

If the method fails, the return value may be one of the following error values:

Remarks

The value this method retrieves reflects the true video line being written, relative to the field height, before any prescaling occurs.

QuickInfo

  Windows NT: Use version 5.0 or later.
  Windows: Use Windows 95 or later. Available as a redistributable for Windows 95.
  Windows CE: Unsupported.
  Header: Declared in dvp.h.
  Import Library: Use ddraw.lib.