protected unsafe void EnableActionSourceIndex()
{
iCallbackSourceIndex = new CallbackSourceIndex(DoSourceIndex);
IntPtr ptr = GCHandle.ToIntPtr(iGch);
DvServiceLinnCoUkProduct3EnableActionSourceIndex(iHandle, iCallbackSourceIndex, ptr);
}
static extern void DvServiceLinnCoUkProduct3EnableActionSourceIndex(uint aHandle, CallbackSourceIndex aCallback, IntPtr aPtr);