CLINIT.C

/******************************************************************************\ 
*       This is a part of the Microsoft Source Code Samples. 
*       Copyright 1993 - 1998 Microsoft Corporation. 
*       All rights reserved. 
*       This source code is only intended as a supplement to 
*       Microsoft Development Tools and/or WinHelp documentation. 
*       See these sources for detailed information regarding the 
*       Microsoft samples programs. 
\******************************************************************************/ 
 
/*************************************************************************** 
 *                                                                         * 
 *  MODULE      : clinit.c                                                 * 
 *                                                                         * 
 *  PURPOSE     : Contains initialization code for Client                  * 
 *                                                                         * 
 ***************************************************************************/ 
 
#include "client.h" 
 
TCHAR szFrame[] = TEXT("mpframe");   /* Class name for "frame" window */ 
TCHAR szChild[] = TEXT("mpchild");   /* Class name for MDI window     */ 
TCHAR szList[] =  TEXT("mplist");    /* Class name for MDI window     */ 
 
/**************************************************************************** 
 *                                                                          * 
 *  FUNCTION   : InitializeApplication ()                                   * 
 *                                                                          * 
 *  PURPOSE    : Sets up the class data structures and does a one-time      * 
 *               initialization of the app by registering the window classes* 
 *               Also registers the Link clipboard format                   * 
 *                                                                          * 
 *  RETURNS    : TRUE  - If successful.                                     * 
 *               FALSE - otherwise.                                         * 
 *                                                                          * 
 ****************************************************************************/ 
 
BOOL  APIENTRY InitializeApplication() 
{ 
    WNDCLASS    wc; 
 
    fmtLink = RegisterClipboardFormat(TEXT("Link")); 
 
    if (!fmtLink) 
        return FALSE; 
 
    /* Register the frame class */ 
    wc.style         = 0; 
    wc.lpfnWndProc   = FrameWndProc; 
    wc.cbClsExtra    = 0; 
    wc.cbWndExtra    = 0; 
    wc.hInstance     = hInst; 
    wc.hIcon         = LoadIcon(hInst,MAKEINTRESOURCE(IDCLIENT)); 
    wc.hCursor       = LoadCursor(NULL,IDC_ARROW); 
    wc.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE+1); 
    wc.lpszMenuName  = MAKEINTRESOURCE(IDCLIENT); 
    wc.lpszClassName = szFrame; 
 
    if (!RegisterClass (&wc) ) 
        return FALSE; 
 
    /* Register the MDI child class */ 
    wc.lpfnWndProc   = MDIChildWndProc; 
    wc.hIcon         = LoadIcon(hInst,MAKEINTRESOURCE(IDCONV)); 
    wc.lpszMenuName  = NULL; 
    wc.cbWndExtra    = CHILDCBWNDEXTRA; 
    wc.lpszClassName = szChild; 
 
    if (!RegisterClass(&wc)) 
        return FALSE; 
 
    wc.hIcon         = LoadIcon(hInst, MAKEINTRESOURCE(IDLIST)); 
    wc.lpszClassName = szList; 
 
    if (!RegisterClass(&wc)) 
        return FALSE; 
 
    return TRUE; 
 
} 
 
/**************************************************************************** 
 *                                                                          * 
 *  FUNCTION   : InitializeInstance ()                                      * 
 *                                                                          * 
 *  PURPOSE    : Performs a per-instance initialization of Client.          * 
 *               - Enlarges message queue to handle lots of DDE messages.   * 
 *               - Initializes DDEML for this app                           * 
 *               - Creates atoms for our custom formats                     * 
 *               - Creates the main frame window                            * 
 *               - Loads accelerator table                                  * 
 *               - Shows main frame window                                  * 
 *                                                                          * 
 *  RETURNS    : TRUE  - If initialization was successful.                  * 
 *               FALSE - otherwise.                                         * 
 *                                                                          * 
 ****************************************************************************/ 
BOOL  APIENTRY InitializeInstance( 
DWORD nCmdShow) 
{ 
    extern HWND  hwndMDIClient; 
    TCHAR         sz[80]; 
    INT          i; 
 
    if (DdeInitialize(&idInst, (PFNCALLBACK)MakeProcInstance( 
            (FARPROC)DdeCallback, hInst), APPCMD_CLIENTONLY, 0L)) 
        return FALSE; 
 
    CCFilter.iCodePage = CP_WINANSI; 
 
    for (i = 0; i < CFORMATS; i++) { 
        if (aFormats[i].fmt == 0) 
            aFormats[i].fmt = RegisterClipboardFormat(aFormats[i].sz); 
    } 
    hszHuge = DdeCreateStringHandle(idInst, TEXT("Huge"), 0); 
 
    /* Get the base window title */ 
    LoadString(hInst, IDS_APPNAME, sz, sizeof(sz)); 
 
    /* Create the frame */ 
    hwndFrame = CreateWindow (szFrame, 
                              sz, 
                              WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN, 
                              CW_USEDEFAULT, 
                              CW_USEDEFAULT, 
                              400, 
                              200, 
                              NULL, 
                              NULL, 
                              hInst, 
                              NULL); 
 
    if (!hwndFrame || !hwndMDIClient) 
        return FALSE; 
 
    /* Load main menu accelerators */ 
    if (!(hAccel = LoadAccelerators (hInst, MAKEINTRESOURCE(IDCLIENT)))) 
        return FALSE; 
 
    /* Display the frame window */ 
    ShowWindow (hwndFrame, nCmdShow); 
    UpdateWindow (hwndFrame); 
 
    /* 
     * We set this hook up so that we can catch the MSGF_DDEMGR filter 
     * which is called when DDEML is in a modal loop during synchronous 
     * transaction processing. 
     */ 
    lpMsgFilterProc = (FARPROC)MakeProcInstance((FARPROC)MyMsgFilterProc, hInst); 
    ghhk = SetWindowsHookEx(WH_MSGFILTER, (HOOKPROC)lpMsgFilterProc, NULL, 
            GetCurrentThreadId()); 
 
    return TRUE; 
}