C++ 初见MFC编程窗口编程错误！

悬赏园豆：20 [已解决问题] 解决于 2018-05-04 21:19

为了更好的学习MFC，所以我是从空白页开始编写MFC，没有让编译器自动生成一大堆代码。

解决方案只有一个cpp文件，内容如下：

 1 #include <Windows.h>
 2 LRESULT CALLBACK wndProc(HWND, UINT, WPARAM, LPARAM);
 3 
 4 int WINAPI WinMain(HINSTANCE hinstance, HINSTANCE hPrevinstance, 
 5             LPSTR lpCmdline, UINT nCmdshow)
 6 {
 7     WNDCLASS wndCls;
 8     wndCls.lpszClassName ="New Class";
 9     wndCls.hInstance =hinstance;
10     wndCls.lpfnWndProc =wndProc;
11     
12     RegisterClass(&wndCls);
13 
14     HWND hwnd=CreateWindow(wndCls.lpszClassName,"NEW CPT",
15         0,0,0,0,0,0,0,hinstance,0);
16     ShowWindow(hwnd,0);
17     UpdateWindow(hwnd);
18     MSG msg;
19     while(GetMessage(&msg,nullptr,0,0)!=WM_QUIT)
20     {
21         TranslateMessage(&msg);
22         DispatchMessage(&msg);
23     }
24     return msg.wParam;
25 
26 }
27 
28 LRESULT CALLBACK wndProc(HWND hwnd, UINT message, WPARAM wpa, LPARAM lpa)
29 {
30     switch(message)
31     {
32     case WM_KEYDOWN:
33         MessageBox(hwnd,"Hello","msg",0);
34         break;
35     }
36     return 0;
37 }