while(IsOpen() && !tabs.IsEmpty()) {
			ProcessEvents();
			for(int i = 0; i < tabs.GetCount(); i++) {
				TerminalTab& tt = tabs[i];
/* Error here? --->*/		if(!tt.Do()) {
					tabbar.RemoveCtrl(tt);
					tabs.Remove(i);
					i--;
				}
			}
			Sleep(10);
		}

if(i && !tt.Do()) {