public void SetUpdateCallback(ULUpdateCallback callback, IntPtr userData = default)
{
if (callback is not null)
{
if (updateHandle.IsAllocated)
{
updateHandle.Free();
}
updateHandle = GCHandle.Alloc(callback, GCHandleType.Normal);
AppCoreMethods.ulAppSetUpdateCallback(Ptr, callback, userData);
}
else
{
if (updateHandle.IsAllocated)
{
updateHandle.Free();
}
AppCoreMethods.ulAppSetUpdateCallback(Ptr, null, userData);
}
}
public static extern void ulAppSetUpdateCallback(IntPtr app, ULUpdateCallback callback, IntPtr user_data);