ICM_DRAW_SETTIME
The
ICM_DRAW_SETTIME provides synchronization information to a rendering driver
that handles the timing of drawing frames. The synchronization information is
the sample number of the frame to draw. You can send this message explicitly or
by using the ICDrawSetTime
macro.
ICM_DRAW_SETTIME
wParam = (DWORD) lpTime;
lParam = 0;
Parameters
lpTime
Sample number
of the frame to render.
Return Values
Returns
ICERR_OK if successful or an error otherwise.
Remarks
Typically,
the driver compares the specified value with the frame number associated with
the time of its internal clock and attempts to synchronize the two if the
difference is significant.
Use this
message when the hardware performs its own asynchronous decompression, timing,
and drawing, and the hardware relies on an external synchronization signal (the
hardware is not being used as the synchronization master).
See Also