Audiokinetic Wwise Knowledge Base

When posting an event (using PostEvent()), you may register a callback that will be called when the event has finished playing.

For example, if you have a situation where you have a sound A that must be played, and while A is playing,
B must be paused (not muted), you could use the following sample code:

const AkTChar Play_A[]  = L"Play_A";
const AkTChar Play_B[]  = L"Play_B";
const AkTChar Pause_B[]  = L"Pause_B";
const AkTChar Resume_B[] = L"Resume_B";

AkGameObjectID mygameObject_ID = 666;// dummy game object for this sample code.

void MyCallbackReaction( AkCallbackType in_eType, AkCallbackInfo* in_pCallbackInfo )
{
 if( in_eType == AK_EndOfEvent && in_pCallbackInfo->pCookie )
 {
  // In this sample I used the input game object ID, but it could be a different one.
  // You could have put the game object ID somewhere in the cookie too.
  AK::SoundEngine::PostEvent(
   (AkLpCtstr)in_pCallbackInfo->pCookie,
   in_pCallbackInfo->gameObjID );
 }
}

void SomeGameThreadFunction()
{
 AK::SoundEngine::PostEvent( Play_B, mygameObject_ID );

 //(snip...) B is playing

 // Now time to pause B, play A, and request to resume B after A is finished

 AK::SoundEngine::PostEvent( Pause_B, mygameObject_ID );
 AK::SoundEngine::PostEvent(
    Play_A,
    mygameObject_ID,
    AK_EndOfEvent,
    MyCallbackReaction,
    (void*)Resume_B /*use the event name as cookie for example*/
    );
 //(snip...)
 
 // B will resume once A is finished.
}