IDirectDrawVideoPort::GetVideoLine (Windows CE 5.0)
This 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 that indicates 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:
| DDERR_INVALIDOBJECT |
| DDERR_INVALIDPARAMS |
| DDERR_UNSUPPORTED |
| DDERR_VERTICALBLANKINPROGRESS |
| DDERR_VIDEONOTACTIVE |
Remarks
The value this method retrieves reflects the true video line being written, relative to the field height, before any prescaling occurs.
Requirements
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header: Dvp.h.
Link Library: Ddraw.lib.
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