win32窗口添加按钮及按钮消息相应，动态显示时间
1、首先建立一个win32项目
2、建立晚工程之后找到回调函数WndProc(HWND, UINT, WPARAM, LPARAM)的实现部分
在case语句中WM_CREATE三个CreateWindow分别创建按钮和显示时间的lable,建议创建lable的句柄hLadle 设为全局变量方便用。其中用于放时间的数组sTimeBuf也建议设为
全局的数组。
1 LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 2 { 3 int wmId, wmEvent; 4 PAINTSTRUCT ps; 5 HDC hdc; 6 HWND hwndButtonCintinue ; 7 HWND hwndButtonExit ; 8 9 switch (message) 10 { 11 case WM_CREATE: 12 { 13 hwndButtonCintinue=CreateWindow(TEXT("button"),//必须为：button 14 TEXT("继续导入"),//按钮上显示的字符 15 WS_CHILD | WS_VISIBLE, 16 100,240,100,50, //按钮在界面上出现的位置 17 hWnd,(HMENU)IDC_BUTTON_CONTINUE, //设置按钮IDIDC_BUTTON_CONTINUE = 131自己定义ID 18 ((LPCREATESTRUCT)lParam)->hInstance,NULL); 19 20 hwndButtonExit=CreateWindow(TEXT("button"),//必须为：button 21 TEXT("退出"),//按钮上显示的字符 22 WS_CHILD | WS_VISIBLE, 23 400,240,100,50, //按钮在界面上出现的位置 24 hWnd,(HMENU)IDC_BUTTON_EXIT, //设置按钮ID IDC_BUTTON_EXIT =132自己定义ID 25 ((LPCREATESTRUCT)lParam)->hInstance,NULL); 26 27 //获取系统时间并显示到界面上 28 SYSTEMTIME time; 29 GetLocalTime(&time); 30 sprintf_s(sTimeBuf, "%d:%d:%d", time.wHour, time.wMinute, time.wSecond); 31 SetTimer(hWnd, 22, 1000, NULL);//设定时器 32 33 WCHAR *swTimeBuf = charToWchar(sTimeBuf); 34 hLadle = CreateWindow(TEXT("static"), 35 swTimeBuf, 36 WS_CHILD | WS_VISIBLE | WS_TABSTOP, 37 0, 48, 57, 16, 38 hWnd, 39 HMENU(21), 40 ((LPCREATESTRUCT)lParam)->hInstance, NULL); 41 } 42 break; 43 case WM_TIMER: 44 { 45 switch(wParam) 46 { 47 case 22: 48 { 49 SYSTEMTIME time; 50 GetLocalTime(&time); 51 sprintf_s(sTimeBuf, "%d:%d:%d", time.wHour, time.wMinute, time.wSecond); 52 break; 53 } 54 default: 55 break; 56 } 57 WCHAR *swTimeBuf = charToWchar(sTimeBuf); 58 SetWindowText(hLadle, swTimeBuf); 59 } 60 break; 61 case WM_COMMAND: 62 wmId = LOWORD(wParam); 63 wmEvent = HIWORD(wParam); 64 // 分析菜单选择: 65 switch (wmId) 66 { 67 case IDC_BUTTON_CONTINUE://继续导入按钮的响应 68 { 69 //MessageBox(NULL,L"继续导入",L"提示",NULL); 70 HWND hDialog = CreateDialog(hInst, MAKEINTRESOURCE(IDD_DIALOG2), hWnd, About_Dialog2); 71 72 //初始化窗口标题栏，并显示窗口 73 SetWindowText(hDialog,L"我的对话框啊"); 74 ShowWindow(hDialog,SW_SHOWNA); 75 UpdateWindow(hDialog); 76 break; 77 } 78 case IDC_BUTTON_EXIT://退出按钮的响应 79 { 80 //MessageBox(hWnd,L"退出按钮",L"提示",NULL); 81 DestroyWindow(hWnd); 82 break; 83 } 84 case IDM_ABOUT: 85 DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About); 86 break; 87 case IDM_EXIT: 88 DestroyWindow(hWnd); 89 break; 90 default: 91 return DefWindowProc(hWnd, message, wParam, lParam); 92 } 93 break; 94 case WM_PAINT: 95 hdc = BeginPaint(hWnd, &ps); 96 // TODO: 在此添加任意绘图代码... 97 EndPaint(hWnd, &ps); 98 break; 99 case WM_DESTROY: 100 PostQuitMessage(0); 101 break; 102 default: 103 return DefWindowProc(hWnd, message, wParam, lParam); 104 } 105 return 0; 106 }
将char型转换成wchar型
1 //功 能：char字符串转化为wchar字符串 2 WCHAR * charToWchar(const char *s) 3 { 4 int w_nlen=MultiByteToWideChar(CP_ACP,0,s,-1,NULL,0); 5 WCHAR *ret; 6 ret=(WCHAR*) malloc(sizeof(WCHAR)*w_nlen); 7 memset(ret,0,sizeof(ret)); 8 MultiByteToWideChar(CP_ACP,0,s,-1,ret,w_nlen); 9 return ret; 10 }
在继续导入按钮点击之后会弹出对话框，可以在系统的基础上直接改IDD_DIALOG1，也可以自己新建一个，我是复制了原来的，然后产生了新的IDIDD_DIALOG2，这个ID号在资源文件中更改，在Reaource.h中。CreateDialog(hInst, MAKEINTRESOURCE(IDD_DIALOG2), hWnd, About_Dialog2);
1 // “关于”对话框2框的消息处理程序。 2 INT_PTR CALLBACK About_Dialog2(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) 3 { 4 UNREFERENCED_PARAMETER(lParam); 5 int dwmId; 6 int ret_num; 7 switch (message) 8 { 9 case WM_INITDIALOG: 10 return (INT_PTR)TRUE; 11 12 case WM_COMMAND: 13 dwmId = LOWORD(wParam); 14 switch (dwmId) 15 { 16 case IDOK: 17 { 18 ret_num = GetDlgItemText(hDlg,IDC_EDIT1,sDialogBuf,sizeof(sDialogBuf) ); 19 if (strlen((char *)sDialogBuf) <= 0 ) 20 { 21 MessageBox(NULL,L"输入为空请重新输入",L"提示",NULL); 22 } 23 else 24 { 25 MessageBox(NULL,sDialogBuf,L"提示",NULL); 26 EndDialog(hDlg, LOWORD(wParam)); 27 return (INT_PTR)TRUE; 28 } 29 } 30 break; 31 case IDCANCEL: 32 { 33 EndDialog(hDlg, LOWORD(wParam)); 34 return (INT_PTR)TRUE; 35 } 36 break; 37 default: 38 break; 39 } 40 } 41 return (INT_PTR)FALSE; 42 }
