When you finish using the Movie Player instance, close it using mmpClose. The syntax of this function is as follows:
BOOL mmpClose(idMovie, wOptions)
Pass the movie ID of the Movie Player instance to the idMovie parameter. The wOptions parameter is reserved for future use; set it to NULL.
When called, mmpClose clears the stage window, unloads any file currently loaded, and frees memory allocated during mmpOpen. This function returns TRUE if successful.
Note:
If mmpClose returns FALSE, you can get error information by immediately calling mmpError with a NULL movie ID.