UpdateWindow(hwnd);
 return 0 ;
 case IDM MAP3:
 sprintf(mapfile, "map3.txt");
 sprintf(segmentfile, "segments3.txt");
 Solution Found = 0 ;
 InvalidateRect(hwnd, NULL, TRUE);
 UpdateWindow(hwnd);
 return 0 ;
 case IDM MAP4:
 sprintf(mapfile, "map4.txt");
 sprintf(segmentfile, "segments4.txt");
 Solution Found = 0 ;
 InvalidateRect(hwnd, NULL, TRUE);
 UpdateWindow(hwnd);
 return 0 ;
 case IDM MAP5:
 sprintf(mapfile, "map5.txt");
 sprintf(segmentfile, "segments5.txt");
 Solution Found = 0 ;
 InvalidateRect(hwnd, NULL, TRUE);
 UpdateWindow(hwnd);
 return 0 ;
 case IDM MAP6:
 sprintf(mapfile, "map6.txt");
 sprintf(segmentfile, "segments6.txt");
 Solution Found = 0 ;
 InvalidateRect(hwnd, NULL, TRUE);
 UpdateWindow(hwnd);
 return 0 ;

 case IDM EXIT:
 EndDialog(hwnd, IDMEXIT); //Exits the
program when Exit option is chosen
 break;
 //Menu stuff ENDS here

 case IDC EXIT:
 EndDialog(hwnd, IDCEXIT); //Exits the
program when Exit button is pressed
 break;
 }
 break;

 case WM CLOSE:
 EndDialog(hwnd, 0);