QMediaLight Movie playback commands

QM_Step

QM_Step(areaRef; numFrames):error
areaRef Longint Movie area reference
numFrames Longint Number of frames
error Longint Error result

Instructs the movie controller in a movie plug-in area to step the movie currently assigned to the area, by a number of frames forward or backward.

The movie plug-in area is specified by areaRef.

Parameter numFrames specifies the number of frames to step. Positive values cause the movie to step forward and negative values step the movie backwards. A value of 0 steps the movie forward one frame; a value of 1 has the same effect.

Example

  `Step the movie in plug-in area xMovieArea 3 frames backwards
 
$error:=QM_Step (xMovieArea;-3)
 

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