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- /* Hello.c
- Hello Application
- Windows Version 1.01
- Copyright (c) Microsoft 1985
-
- This application has been revised to demonstrate the coding
- differences between the two Dialog boxes:
- MODAL, created using DialogBox and
- MODELESS, created using CreateDialog.
- The application starts out by having the user select the "GO"
- menu item which creates the "First Dialog" and then the DEMO
- button then creates the "Second Dialog". The "Second Dialog"
- then allows you to push some buttons and process them.
-
- To point out the differences in coding, there are "#ifdef" to
- allow you to compile using the desired method and to visually
- see what needs to be done when using one method over the other.
- This information is an expanded implementation of the sample
- code on pages 169-173 of the Programming Guide. The default is
- set to compile using MODAL dialog boxes. If you want to compile
- using the MODELESS dialog boxes, change "MODAL" to "XMODAL".*/
-
- #define XMODAL /* default */
-
- #include "windows.h"
- #include "hello.h"
-
- char szAppName[10];
- char szAbout[10];
- char szMessage[15];
- int MessageLength;
-
- #ifdef MODAL
- #else
- HWND hDlgWnd1;
- HWND hDlgWnd2;
- #endif
- static HANDLE hInst;
- FARPROC lpprocAbout;
- FARPROC lpprocFirstDlg;
- FARPROC lpprocSecondDlg;
-
- long FAR PASCAL HelloWndProc(HWND, unsigned, WORD, LONG);
- BOOL FAR PASCAL FirstDlg(HWND, unsigned, WORD, LONG);
- BOOL FAR PASCAL SecondDlg(HWND, unsigned, WORD, LONG);
-
- BOOL FAR PASCAL About( hDlg, message, wParam, lParam )
- HWND hDlg;
- unsigned message;
- WORD wParam;
- LONG lParam;
- {
- if (message == WM_COMMAND) {
- EndDialog( hDlg, TRUE );
- return TRUE;
- }
- else if (message == WM_INITDIALOG)
- return TRUE;
- else return FALSE;
- }
-
-
- void HelloPaint( hDC )
- HDC hDC;
- {
- TextOut( hDC, (short)10, (short)10,
- #ifdef MODAL
- (LPSTR)"DialogBox = Modal",(short)17 );
- #else
- (LPSTR)"CreateDialog = Modeless",(short)23 );
- #endif
- }
-
- /* Procedure called when the application is loaded for the first time */
- BOOL HelloInit( hInstance )
- HANDLE hInstance;
- {
- PWNDCLASS pHelloClass;
-
- /* Load strings from resource */
- LoadString( hInstance, IDSNAME, (LPSTR)szAppName, 10 );
- LoadString( hInstance, IDSABOUT, (LPSTR)szAbout, 10 );
- MessageLength = LoadString( hInstance, IDSTITLE, (LPSTR)szMessage, 15 );
-
- pHelloClass = (PWNDCLASS)LocalAlloc( LPTR, sizeof(WNDCLASS) );
-
- pHelloClass->hCursor = LoadCursor( NULL, IDC_ARROW );
- pHelloClass->hIcon = LoadIcon( hInstance, (LPSTR)szAppName );
- pHelloClass->lpszMenuName = (LPSTR)szAppName;
- pHelloClass->lpszClassName = (LPSTR)szAppName;
- pHelloClass->hbrBackground = (HBRUSH)GetStockObject( WHITE_BRUSH );
- pHelloClass->hInstance = hInstance;
- pHelloClass->style = CS_HREDRAW | CS_VREDRAW;
- pHelloClass->lpfnWndProc = HelloWndProc;
-
- if (!RegisterClass( (LPWNDCLASS)pHelloClass ) )
- /* Initialization failed.
- * Windows will automatically deallocate all allocated memory.
- */
- return FALSE;
-
- LocalFree( (HANDLE)pHelloClass );
- return TRUE; /* Initialization succeeded */
- }
-
-
- int PASCAL WinMain( hInstance, hPrevInstance, lpszCmdLine, cmdShow )
- HANDLE hInstance, hPrevInstance;
- LPSTR lpszCmdLine;
- int cmdShow;
- {
- BOOL bResult;
- MSG msg;
- HWND hWnd;
- HMENU hMenu;
-
- if (!hPrevInstance) {
- /* Call initialization procedure if this is the first instance */
- if (!HelloInit( hInstance ))
- return FALSE;
- }
- else {
- /* Copy data from previous instance */
- GetInstanceData( hPrevInstance, (PSTR)szAppName, 10 );
- GetInstanceData( hPrevInstance, (PSTR)szAbout, 10 );
- GetInstanceData( hPrevInstance, (PSTR)szMessage, 15 );
- GetInstanceData( hPrevInstance, (PSTR)&MessageLength, sizeof(int) );
- }
-
- hWnd = CreateWindow((LPSTR)szAppName,
- (LPSTR)szMessage,
- WS_TILEDWINDOW,
- 0, /* x - ignored for tiled windows */
- 0, /* y - ignored for tiled windows */
- 0, /* cx - ignored for tiled windows */
- 0, /* cy - ignored for tiled windows */
- (HWND)NULL, /* no parent */
- (HMENU)NULL, /* use class menu */
- (HANDLE)hInstance, /* handle to window instance */
- (LPSTR)NULL /* no params to pass on */
- );
-
- /* Save instance handle for DialogBox */
- hInst = hInstance;
-
- /* Bind callback function with module instance */
- lpprocAbout = MakeProcInstance( (FARPROC)About, hInstance );
- lpprocFirstDlg = MakeProcInstance( (FARPROC)FirstDlg, hInstance );
- lpprocSecondDlg = MakeProcInstance( (FARPROC)SecondDlg, hInstance );
-
- /* Insert "About..." into system menu */
- hMenu = GetSystemMenu(hWnd, FALSE);
- ChangeMenu(hMenu, 0, NULL, 999, MF_APPEND | MF_SEPARATOR);
- ChangeMenu(hMenu, 0, (LPSTR)szAbout, IDSABOUT, MF_APPEND | MF_STRING);
-
- /* Make window visible according to the way the app is activated */
- ShowWindow( hWnd, cmdShow );
- UpdateWindow( hWnd );
-
- /* Polling messages from event queue */
- #ifdef MODAL
- while (GetMessage((LPMSG)&msg, NULL, 0, 0)) {
- TranslateMessage((LPMSG)&msg);
- DispatchMessage((LPMSG)&msg);
- }
- #else
- /* The following can be rewritten in many ways, but was made
- for clairity and for easy modification.
- Since this program does not use an Accelerator Table the
- code has been commented out. I thought I should put it
- in for completness. */
-
- while (GetMessage((LPMSG)&msg, NULL, 0, 0)) {
- bResult = NULL; /* default is that the message has not been processed */
- if (hDlgWnd1 != NULL)
- bResult = IsDialogMessage(hDlgWnd1, (LPMSG)&msg);
- if (hDlgWnd2 != NULL)
- bResult = IsDialogMessage(hDlgWnd2, (LPMSG)&msg);
- /* if (!bResult) /* message not processed by above dialog(s) */
- /* bResult = TranslateAccelerator(hWnd, hAccelTable, (LPMSG)&msg );
- */
- if (!bResult) { /* the parent will get the message */
- TranslateMessage((LPMSG)&msg);
- DispatchMessage((LPMSG)&msg);
- } /* end if */
- } /* end while */
- #endif
- return (int)msg.wParam;
- }
-
-
- long FAR PASCAL HelloWndProc( hWnd, message, wParam, lParam )
- HWND hWnd;
- unsigned message;
- WORD wParam;
- LONG lParam;
- {
- PAINTSTRUCT ps;
-
- switch (message)
- {
- case WM_SYSCOMMAND:
- switch (wParam)
- {
- case IDSABOUT:
- DialogBox( hInst, MAKEINTRESOURCE(ABOUTBOX), hWnd, lpprocAbout );
- break;
- default:
- return DefWindowProc( hWnd, message, wParam, lParam );
- }
- break;
-
- case WM_CREATE:
- #ifdef MODAL
- #else
- hDlgWnd1 = NULL; /* initialize the first time through */
- hDlgWnd2 = NULL; /* initialize the first time through */
- #endif
- break;
-
- case WM_COMMAND:
- #ifdef MODAL
- DialogBox( hInst, MAKEINTRESOURCE(FIRSTDIALOG),
- hWnd, lpprocFirstDlg);
- #else
- hDlgWnd1 = CreateDialog( hInst, MAKEINTRESOURCE(FIRSTDIALOG),
- hWnd, lpprocFirstDlg);
- #endif
- break;
-
- case WM_DESTROY:
- PostQuitMessage( 0 );
- break;
-
- case WM_PAINT:
- BeginPaint( hWnd, (LPPAINTSTRUCT)&ps );
- HelloPaint( ps.hdc );
- EndPaint( hWnd, (LPPAINTSTRUCT)&ps );
- break;
-
- default:
- return DefWindowProc( hWnd, message, wParam, lParam );
- break;
- }
- return(0L);
- }
-
- /**********************************************************
- First Dialog
- ***********************************************************/
- BOOL FAR PASCAL FirstDlg(hDlg, message, wParam, lParam)
- HWND hDlg;
- unsigned message;
- WORD wParam;
- LONG lParam;
- {
- switch (message){
- case WM_INITDIALOG:
- return TRUE;
-
- case WM_COMMAND:
- switch (wParam)
- {
- case IDDINSERT:
- #ifdef MODAL
- DialogBox(hInst, MAKEINTRESOURCE(SECONDDIALOG),
- hDlg, lpprocSecondDlg);
- /* please note that the Dialog in the RC file does
- NOT have the WS_VISIBLE attribute set which will
- allow for keyboard processing BEFORE the dialog
- is displayed. */
- #else
- hDlgWnd2 = CreateDialog(hInst, MAKEINTRESOURCE(SECONDDIALOG),
- hDlg, lpprocSecondDlg);
- /* ShowWindow is needed here because the dialog
- style doesn't have WM_VISIBLE bit set. */
- ShowWindow(hDlgWnd2,SHOW_OPENWINDOW);
- #endif
- break;
- case IDDCANCEL:
- #ifdef MODAL
- EndDialog(hDlg, TRUE);
- #else
- DestroyWindow(hDlg);
- hDlgWnd1 = NULL; /* clear because this is used in the input loop */
- #endif
- break;
-
- default:
- return FALSE;
- }
- break;
-
- default:
- return FALSE;
- }
- return TRUE;
- }
-
-
- /**********************************************************
- Second Dialog
- ***********************************************************/
- BOOL FAR PASCAL SecondDlg(hDlg, message, wParam, lParam)
- HWND hDlg;
- unsigned message;
- WORD wParam;
- LONG lParam;
- {
-
- switch (message){
- case WM_INITDIALOG:
- /* Modify the text strings. */
- SetDlgItemText( hDlg, IDDTXT1,
- (LPSTR)"Use the 'TAB' key to move around.");
- SetDlgItemText( hDlg, IDDTXT2,
- (LPSTR)"Select the button desired.");
-
- /* Modify the button text. */
- SetDlgItemText( hDlg, IDDABORT, (LPSTR)"ONE");
- SetDlgItemText( hDlg, IDDRETRY, (LPSTR)"TWO");
- SetDlgItemText( hDlg, IDDIGNORE,(LPSTR)"THREE");
- SetDlgItemText( hDlg, IDDOK, (LPSTR)"FOUR");
-
- /* Disable the 2nd button */
- EnableWindow( GetDlgItem(hDlg, IDDRETRY), FALSE );
-
- break;
-
- case WM_COMMAND:
- switch (wParam)
- {
- case IDDABORT:
- MessageBox( hDlg,(LPSTR)"One",(LPSTR)"Button Selected",MB_OK);
- break;
- case IDDRETRY:
- MessageBox( hDlg,(LPSTR)"Two",(LPSTR)"Button Selected",MB_OK);
- break;
- case IDDIGNORE:
- MessageBox( hDlg,(LPSTR)"Three",(LPSTR)"Button Selected",MB_OK);
- break;
- case IDDOK:
- MessageBox( hDlg,(LPSTR)"Four",(LPSTR)"Button Selected",MB_OK);
- break;
- default: ; /* nothing */
- break;
- } /* end switch */
-
- case WM_CLOSE:
-
- #ifdef MODAL
- EndDialog(hDlg, TRUE);
- #else
- DestroyWindow(hDlg);
- hDlgWnd2 = NULL; /* clear because this is used in the input loop */
- #endif
-
- break;
-
- default:
- return FALSE;
- }
- return TRUE;
- }
-