Windows API　弹出文本框输入的内容

  1 /*程序功能：点击button按钮弹出输入框的文本*/
  2 #include<windows.h>
  3 
  4 struct 
  5 {
  6     int iStyle;
  7     TCHAR * szText;
  8 }
  9 button[]=
 10 {
 11     BS_PUSHBUTTON,          TEXT("BS_PUSHBUTTON"),
 12     BS_DEFPUSHBUTTON,       TEXT("BS_DEFPUSHBUTTON")
 13 }; 
 14 
 15 #define NUM (sizeof button /sizeof button[0])  //num=2
 16 
 17 LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);  //申明函数
 18 
 19 int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int iCmdShow)
 20 {
 21        static TCHAR szAppName[]= TEXT ("app1");
 22 
 23     HWND hwnd;
 24     MSG msg;
 25     WNDCLASS wndclass;
 26    
 27     wndclass.style    =       CS_HREDRAW | CS_VREDRAW;
 28     wndclass.lpfnWndProc =    WndProc;
 29     wndclass.cbClsExtra  =    0;
 30     wndclass.cbWndExtra  =    0;
 31     wndclass.hInstance   =    hInstance;
 32     wndclass.hIcon       =    LoadIcon(NULL, IDI_APPLICATION);
 33     wndclass.hCursor     =    LoadCursor(NULL,IDC_ARROW);
 34     wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
 35     wndclass.lpszMenuName = NULL;
 36     wndclass.lpszClassName= szAppName;
 37 
 38     if(!RegisterClass(&wndclass))
 39     {
 40          MessageBox(NULL,TEXT("程序要求 Windows NT 系统!"),szAppName,MB_ICONERROR);
 41 
 42          return 0;
 43     }
 44 
 45     hwnd = CreateWindow (szAppName,
 46                          TEXT ( "WindowsAPI程序-按钮实例 "),
 47                          WS_OVERLAPPEDWINDOW,
 48                          CW_USEDEFAULT,
 49                          CW_USEDEFAULT,
 50                          CW_USEDEFAULT,
 51                          CW_USEDEFAULT,
 52                          NULL, 
 53                          NULL,
 54                          hInstance,
 55                          NULL);
 56 
 57     ShowWindow(hwnd,iCmdShow);
 58     UpdateWindow(hwnd);
 59 
 60     while( GetMessage( &msg,NULL,0,0))
 61     {
 62       TranslateMessage(&msg);
 63       DispatchMessage(&msg);
 64     }
 65 
 66     return msg.wParam;
 67 
 68 }
 69 
 70 //窗口过程函数
 71 LRESULT CALLBACK WndProc (HWND hwnd,UINT message,WPARAM wParam, LPARAM lParam)
 72 {
 73 
 74     static HWND hwndButton[NUM];  //按钮句柄集合
 75     static HWND hwndTxt;
 76     static HWND hwndBtnSure;
 77     static HWND hwndBtnSure2;
 78     static HWND hwndChild;
 79     static RECT rect; //矩形结构体
 80     //char数组
 81     static TCHAR szTop[]       =TEXT("功能：点击按钮显示文本框内容"),
 82                  szUnd[]       =TEXT("_______          ______          ______"),
 83                  szFormat[]    =TEXT("%-16s%04X-%04X         %04X-%04X"),  //关于格式化字符串参考 http://blog.163.com/c__0/blog/static/188312066201162661240584/
 84                  szBuffer[50];
 85     char constStr[]= { "，欢迎进入C++世界" };
 86     char outputStr[256];
 87     static int cxChar,cyChar;
 88     HDC    hdc;     //绘图实例句柄
 89     HDC    childHdc;
 90     PAINTSTRUCT ps; //绘制结构体
 91     int i,len;
 92     switch (message)
 93     {
 94         //创建
 95        case WM_CREATE:
 96 
 97             cxChar=LOWORD(GetDialogBaseUnits()); 
 98             cyChar=HIWORD(GetDialogBaseUnits());
 99 
100         
101             //文本框
102             hwndTxt = CreateWindow   (   
103                                       "edit",   
104                                       "",   
105                                       WS_CHILD|WS_VISIBLE|WS_BORDER|BS_TEXT,   
106                                       250,  100,   300,22,   
107                                       hwnd,   
108                                       (HMENU)1,   
109                                       ((LPCREATESTRUCT) lParam)->hInstance,   
110                                       NULL   
111                                       );
112          
113             //按钮
114             hwndBtnSure2 = CreateWindow(   
115                                       TEXT("button"),  
116                                       "点击我2",
117                                        WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,
118                                       230, 
119                                       190, 
120                                        20*cxChar,
121                                       7*cyChar/4,
122                                       hwnd,   
123                                       (HMENU)3,   
124                                       ((LPCREATESTRUCT) lParam)->hInstance,   
125                                       NULL   
126                                       );
127                                       
128                                      
129       
130             hwndBtnSure=CreateWindow(
131                                        TEXT("Button"),
132                                        "点击我",
133                                        WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,
134                                        230,
135                                        150,
136                                        20*cxChar,
137                                        7*cyChar/4,
138                                        hwnd,
139                                        (HMENU)2,
140                                        ((LPCREATESTRUCT) lParam)->hInstance,NULL);
141             
142         
143 
144 
145             return 0;
146 
147        case WM_SIZE:
148            rect.left=24* cxChar;
149            rect.top=2*cyChar;
150            rect.right=LOWORD(lParam);
151            rect.bottom=HIWORD(lParam);
152            return 0;
153             
154        case WM_PAINT:
155            
156            InvalidateRect(hwnd,&rect,TRUE);
157 
158            hdc=BeginPaint(hwnd,&ps);
159 
160            SelectObject(hdc,GetStockObject(SYSTEM_FIXED_FONT));  //选取当前字体
161            SetBkMode(hdc,TRANSPARENT) ;// 背景设置成透明
162         
163           // SetBkColor(hdc,GetSysColor(COLOR_BTNFACE));
164            SetTextColor(hdc,GetSysColor(COLOR_BTNTEXT)); //设置文本颜色
165 
166            TextOut(hdc,24*cxChar,cyChar,szTop,lstrlen(szTop));
167            //TextOut(hdc,24*cxChar,cyChar,szUnd,lstrlen(szUnd));
168 
169       
170 
171            EndPaint(hwnd,&ps);
172            return 0;
173         
174        case WM_DRAWITEM:
175        case WM_COMMAND:
176          
177             hdc=GetDC(hwnd);
178             SelectObject(hdc,GetStockObject(SYSTEM_FIXED_FONT));  //选取当前字体
179 
180             //获取当前子窗口句柄
181             hwndChild=(HWND)lParam;
182             if(hwndChild==hwndBtnSure)
183             {
184                   char szBuff[256];
185                  GetWindowText(hwndTxt,szBuff,sizeof(szBuff));
186                  if(strlen(szBuff)==0)
187                      return 0;
188 
189                  for(i=0;i<sizeof(outputStr);i++)
190                  {
191                      if(i==0)
192                          len=strlen(szBuff);
193                      szBuff[len++]=constStr[i];
194                  }
195                  MessageBox(NULL, szBuff,TEXT("提示"),0);
196             }
197             else if(hwndChild==hwndBtnSure2)
198             {
199                 MessageBox(NULL,TEXT("按钮2点击了"),TEXT("提示"),0);
200             }
201      
202             ReleaseDC(hwnd,hdc);
203             ValidateRect(hwnd,&rect);
204             break;
205 
206        case WM_CTLCOLORBTN:
207            /*
208                childHdc=(HDC)wParam;
209             SetBkColor(childHdc,GetSysColor(COLOR_BTNFACE));
210             SetTextColor(childHdc,GetSysColor(COLOR_HIGHLIGHT));
211             ReleaseDC((HWND)lParam,childHdc);
212             */
213            break;
214 
215        case WM_DESTROY:
216            PostQuitMessage(0);
217            return 0;
218     }
219 
220     return DefWindowProc (hwnd,message,wParam,lParam);
221 }