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ICDrawStartPlay macro

The ICDrawStartPlay macro provides the start and end times of a play operation to a rendering driver. You can use this macro or explicitly call the ICM_DRAW_START_PLAY message.

Syntax


void ICDrawStartPlay(
   hic,
   lFrom,
   lTo
);

Parameters

hic

Handle to a driver.

lFrom

Start time.

lTo

End time.

Return value

This macro does not return a value.

Remarks

This message precedes any frame data sent to the rendering driver.

Units for lFrom and lTo are specified with the ICM_DRAW_BEGIN message. For video data this is normally a frame number. For more information about the playback rate, see the dwRate and dwScale members of the ICDRAWBEGIN structure.

If the end time is less than the start time, the playback direction is reversed.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Vfw.h

See also

Video Compression Manager
Video Compression Macros

 

 

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