volumebezel.m

- (void)_setVolumeBezelVisible:(BOOL const)aVisible
{
    mach_port_t (*springBoardServerPort)() = dlsym(RTLD_DEFAULT, "SBSSpringBoardServerPort");
    void (*setSystemVolumeHUDEnabled)(mach_port_t, const char *audioCategory, Boolean) =
        dlsym(RTLD_DEFAULT, "SBSetSystemVolumeHUDEnabled");
    if(!springBoardServerPort || !setSystemVolumeHUDEnabled)
        return;
    
    mach_port_t sbPort = springBoardServerPort();
    if(!sbPort)
        return;
    setSystemVolumeHUDEnabled(sbPort, "Audio/Video", aVisible);
}