QMedia
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QM_GetPreferredRate(movieRef; prefRate):error | |||
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movieRef | Longint | Movie reference |
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prefRate | Real | Preferred playback rate |
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error | Longint | Error result |
Returns the preferred playback rate of a movie.
Parameter movieRef is the reference to the movie instance. The movie reference must have been previously obtained with a call to QM_NewMovieFromFile or QM_NewMovieFromURL.
Parameter prefRate receives the movie's preferred playback rate. It is a real number in the -5.0 ... +5.0 range. Positive rates mean forward playback and negative rates mean reverse playback.
The default preferred playback rate of a movie is set to 1.0 when the movie is created.
Example
`Get the preferred playback rate movie $movieRef C_REAL($prefRate) $error:=QM_GetPreferredRate ($movieRef;$prefRate) |
Related commands
QM_SetPreferredRate | Sets the movie's preferred playback rate. |