<p>Without var_DelCallBack:</p><p>audio_output/auhal.c<br>      var_AddCallback( p_aout, "audio-device", AudioDeviceCallback, NULL );<br>audio_output/directx.c<br>      var_AddCallback( p_aout, "audio-device", aout_ChannelsRestart, NULL );<br>
audio_output/portaudio.c<br>      var_AddCallback( p_aout, "audio-device", aout_ChannelsRestart, NULL );<br>audio_output/waveout.c<br>      var_AddCallback( p_aout, "audio-device", aout_ChannelsRestart, NULL );<br>
control/netsync.c <br>      var_AddCallback(input, "intf-event", InputEvent, intf); <br>gui/macosx/intf.m<br>      var_AddCallback( p_playlist, "fullscreen", FullscreenChanged, self);<br>      var_AddCallback( p_intf->p_libvlc, "intf-toggle-fscontrol", ShowController, self);<br>
      var_AddCallback( p_input, "intf-event", InputEvent, [VLCMain sharedInstance] );<br>gui/macosx/VideoView.m<br>      var_AddCallback( p_vout, "video-device", DeviceCallback, NULL );<br>gui/qt4/main_interface.cpp<br>
      var_AddCallback( p_intf->p_libvlc,"intf-show", IntfRaiseMainCB, p_intf );<br>lua/extension.c<br>      var_AddCallback( p_this, "dialog-event", vlclua_extension_dialog_callback, NULL );</p>