MFC 键盘响应

Posted 2021-01-20 yocichen

键盘响应

1. 插入函数：在...对话框/menu中进入建立类模式，建立preTranslateMessage(MSG * pMsg)

　　在CXXXView类中，添加：

 1 BOOL CMy9_1View::PreTranslateMessage(MSG* pMsg) 
 2 {
 3     // TODO: Add your specialized code here and/or call the base class
 4     if(pMsg->message == WM_KEYDOWN)    //捕捉到键盘
 5     {
 6         switch(pMsg->wParam)
 7         {
 8             case VK_UP: //方向键↑

 9                 PHI += add_p;
10                 //PHI = 360%Round(PHI); 
11                 Onbegin(RR, DD, PHI, THETA);
12             break;
13 
14             case VK_DOWN:  //方向键↓
15                 PHI -= add_p;
16                 //PHI = 360%Round(PHI); 
17                 Onbegin(RR, DD, PHI, THETA);
18             break;
19 
20             case VK_RIGHT:  //方向键→
21                 THETA -= add_t;
22                 Onbegin(RR, DD, PHI, THETA);
23             break;
24 
25             case VK_LEFT:  //方向键←
26                 THETA += add_t;
27                 Onbegin(RR, DD, PHI, THETA);
28             break;
29 
30             case ‘B‘://big:放大
31                 RR -= add_r;
32                 Onbegin(RR, DD, PHI, THETA);
33             break;
34 
35             case ‘S‘://big:放大
36                 RR += add_r;
37                 Onbegin(RR, DD, PHI, THETA);
38             break;
39 
40             case ‘ ‘://big:放大
41                 if(flag_space == true)
42                 {
43                     KillTimer(1);
44                     flag_space = false;
45                 }
46     
47                 else if(flag_space == false)
48                 {
49                     SetTimer(1, 100, NULL);
50                     flag_space = true;
51                 }
52                     
53             break;
54 
55             default:
56             break;
57         }
58     }
59     return CView::PreTranslateMessage(pMsg);
60 }

如果想要响应具体的 字母  ’字母’ 可！