fprintf(stderr, "Menu Selected 0x%x 0x%x\n", p, call_data);
void nsXtWidget_Menu_Callback(Widget w, XtPointer p, XtPointer call_data){  fprintf(stderr, "Menu Selected 0x%x 0x%x\n", p, call_data);  MenuCallbackStruct * cbs = (MenuCallbackStruct *)p;  if (cbs != NULL) {    MenuCallbackProc cb = (MenuCallbackProc)call_data;    if (cbs->mCallback != NULL) {      (*cbs->mCallback)(cbs->mId);    }  }}