vc隨筆

一、限制窗口大小

處理WM_GETMINMAXINFO消息，該消息wParam不使用，lParam是MINMAXINFO結構指針，若處理該消息，必須返回0；

      case WM_GETMINMAXINFO:
      {
          MINMAXINFO *p = (MINMAXINFO*)lParam;
          p->ptMinTrackSize.x = 200;
          p->ptMinTrackSize.y = 300;
          p->ptMaxTrackSize.x = 400;
          p->ptMaxTrackSize.y = 600;
          return 0;
      }

二、