sound_pool object
This method will destroy all of the sounds in the sound pool.
void destroy_all()
Parameters:
None.
Return value:
None.
Remarks:
This is useful if you want to return to the main menu, or reset to another level, etc.
Example:

    #include "sound_pool.bgt"

    sound_pool sounds;

    void main()
    {
    sounds.max_distance=70;
    sounds.play_stationary("sounds/ambience.wav", true);
    wait(5000);
    sounds.destroy_all();
    exit();
    }