IDirectDrawVideoPort::GetVideoLine

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

HRESULT GetVideoLine(
  LPDWORD lpdwLine  
);

Parameters

lpdwLine

Address of a variable to 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 it fails, the method can return one of the following error values:

Remarks

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

Requirements

  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in dvp.h.
  Import Library: Use ddraw.lib.