void mltMoveTransparency(int startTime, int endTime, int startTrack, int endTrack, int id);
void mltDeleteTransparency(int pos, int track, int id);
void mltResizeTransparency(int oldStart, int newStart, int newEnd, int track, int id);
void mltMoveTransparency(int startTime, int endTime, int startTrack, int endTrack, int id);
void mltDeleteTransparency(int pos, int track, int id);
void mltResizeTransparency(int oldStart, int newStart, int newEnd, int track, int id);