2D游戏编程2--windows高级编程

 

windows应用程序布局

编译流程

响应菜单事件消息

菜单消息处理实例：

LRESULT CALLBACK WindowProc(HWND hwnd,
                            UINT msg,
                            WPARAM wparam,
                            LPARAM lparam)
{
// this is the main message handler of the system
PAINTSTRUCT        ps;    // used in WM_PAINT
HDC                        hdc;    // handle to a device context
 
// what is the message
switch(msg)
    {
    case WM_CREATE:
        {
    // do initialization stuff here
 
       // return success
       return(0);
    } break;
 
       case WM_COMMAND:
       {
       switch(LOWORD(wparam))
             {
             // handle the FILE menu
             case MENU_FILE_ID_OPEN:
             {
             // do work here
             } break;
             case MENU_FILE_ID_CLOSE:
             {
              // do work here
             } break;
             case MENU_FILE_ID_SAVE:
             {
             // do work here
             } break;
             case MENU_FILE_ID_EXIT:
             {
             // do work here
             } break;
 
             // handle the HELP menu
             case MENU_HELP_ABOUT:
             {
             // do work here
             } break;
             default: break;
 
             } // end switch wparam
 
        } break; // end WM_COMMAND
 
    case WM_PAINT:
    {
    // simply validate the window
    hdc = BeginPaint(hwnd,&ps);
    // you would do all your painting here
       EndPaint(hwnd,&ps);
       // return success
    return(0);
    } break;
 
    case WM_DESTROY:
    {
    // kill the application, this sends a WM_QUIT message
    PostQuitMessage(0);
 
        // return success
    return(0);
    } break;
 
       default:break;
 
    } // end switch
 
// process any messages that we didn't take care of
return (DefWindowProc(hwnd, msg, wparam, lparam));
 
} // end WinProc