option fields in Win32 API

simmeone · Jun 19, 2000

Hi folks I'm new in Win32 API programming and I have the following problem: I have created a dialog with option fields where the user can set different options, and must press a OK-Button. The problem now is, that the OK-button don't works, and I don't know why. Here the example of my code: #include <windows.h> #include "resource.h" HWND hwndModeless; HINSTANCE hInst; BOOL CALLBACK AboutDlgProc ( HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam ) // About Window {     switch ( message )     {     case WM_INITDIALOG:         return TRUE;     case WM_COMMAND:     switch ( LOWORD ( wParam ))     {     case IDOK:         EndDialog ( hDlg, 0 );         return TRUE;         }     break;     }     return FALSE; } BOOL CALLBACK MainDlg ( HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam ) {     switch ( message )     {     case WM_INITDIALOG:         CheckRadioButton ( hDlg, IDC_REBOOT, IDC_SHUTDOWN, 0 );         SendMessage ( hDlg, WM_COMMAND, IDOK, 0 );     }     return FALSE; } LRESULT CALLBACK WndProc ( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam ) {     switch ( message )     {     case WM_COMMAND:         switch ( LOWORD ( wParam ))         {         case IDM_APP_ABOUT:             DialogBox ( hInst, MAKEINTRESOURCE ( IDD_ABOUT ), hwnd, AboutDlgProc );             return 0;             case IDOK:             switch ( LOWORD ( wParam ))             {             case IDC_REBOOT:                 ExitWindowsEx ( EWX_REBOOT, 0xFFFFFFFF );                 return TRUE;             case IDC_SHUTDOWN:                 ExitWindowsEx ( EWX_POWEROFF, 0xFFFFFFFF );                 return TRUE;                 }             }             break;                  case WM_DESTROY:                 PostQuitMessage ( 0 );                 return 0;             }             return DefWindowProc ( hwnd, message, wParam, lParam ); } int WINAPI WinMain ( HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow ) {     TCHAR static szAppName [ ] = TEXT ( "SELECT" );         HWND hwnd;     MSG msg;     RECT rect;     WNDCLASS wndclass;     hInst = hInstance;     wndclass.style = 0;     wndclass.lpfnWndProc = WndProc;     wndclass.cbClsExtra = 0;     wndclass.cbWndExtra = 0;     wndclass.hInstance = hInstance;     wndclass.hIcon = LoadIcon ( hInstance, MAKEINTRESOURCE ( IDI_ICON2 ));     wndclass.hCursor = LoadCursor ( NULL, IDC_ARROW );     wndclass.hbrBackground = NULL;     wndclass.lpszMenuName = szAppName;     wndclass.lpszClassName = szAppName;     if ( !RegisterClass ( &wndclass ))     {         MessageBox ( NULL, TEXT ( "Only for Windows NT or Windows 2000" ), szAppName, MB_ICONERROR );         return 0;     }     hwnd = CreateWindow ( szAppName, TEXT ( "Killing Windows" ),                           WS_OVERLAPPED ¦ WS_CAPTION ¦ WS_SYSMENU ¦ WS_BORDER ¦ WS_MINIMIZEBOX,   CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,   NULL, NULL, hInstance, NULL );       hwndModeless = CreateDialog ( hInstance, szAppName, hwnd, MainDlg );     GetWindowRect    ( hwndModeless, &rect );     AdjustWindowRect ( &rect, WS_CAPTION ¦ WS_BORDER, FALSE );     SetWindowPos ( hwnd, NULL, 0, 0, rect.right - rect.left, rect.bottom - rect.top, SWP_NOMOVE );     ShowWindow ( hwndModeless, SW_SHOW );     ShowWindow ( hwnd, iCmdShow );     UpdateWindow ( hwnd );     while ( GetMessage ( &msg, NULL, 0, 0 ))     {         if ( hwndModeless == 0 ¦¦ !IsDialogMessage ( hwndModeless, &msg ))         {             TranslateMessage ( &msg );             DispatchMessage ( &msg );         }     }     return msg.wParam; } And a other problem I have: the reboot and poweroff function don't works with WinNT and Win2k why?? Is there a option that I have forgot in my source? At the moment I don't have any idea for my problem I hope you can help me. Greeting SiM

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option fields in Win32 API

simmeone

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