IDirectDraw::GetScanLine
| Microsoft DirectShow 9.0 |
IDirectDraw::GetScanLine
The GetScanLine method returns the scan line that the monitor is currently updating to the display.
Syntax
ine
Parameters
lpdwScanLine
Points to the DWORD that will contain the scan line the display is currently on.
Return Values
| Value | Description |
| DD_OK | The method succeeded. |
| DDERR_INVALIDOBJECT | DirectDraw received a pointer that was an invalid DirectDraw object. |
| DDERR_INVALIDPARAMS | One or more of the input parameters is invalid. |
| DDERR_UNSUPPORTED | Action not supported. |
| DDERR_VERTICALBLANKINPROGRESS | Vertical blank is in progress. |
See Also