gecko-dev/xpcom/windbgdlg/windbgdlg.cpp

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Communicator client code, released
 * March 31, 1998.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1999
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   John Bandhauer <jband@netscape.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

/* Windows only app to show a modal debug dialog - launched by nsDebug.cpp */

#include <windows.h>
#include <stdlib.h>

int WINAPI 
WinMain(HINSTANCE  hInstance, HINSTANCE  hPrevInstance, 
        LPSTR  lpszCmdLine, int  nCmdShow)
{
    /* support for auto answering based on words in the assertion.
     * the assertion message is sent as a series of arguements (words) to the commandline.
     * set a "word" to 0xffffffff to let the word not affect this code.
     * set a "word" to 0xfffffffe to show the dialog.
     * set a "word" to 0x5 to ignore (program should continue).
     * set a "word" to 0x4 to retry (should fall into debugger).
     * set a "word" to 0x3 to abort (die).
     */
    DWORD regType;
    DWORD regValue = -1;
    DWORD regLength = sizeof regValue;
    HKEY hkeyCU, hkeyLM;
    RegOpenKeyEx(HKEY_CURRENT_USER, "Software\\mozilla.org\\windbgdlg", 0, KEY_READ, &hkeyCU);
    RegOpenKeyEx(HKEY_LOCAL_MACHINE, "Software\\mozilla.org\\windbgdlg", 0, KEY_READ, &hkeyLM);
    const char * const * argv = __argv;
    for (int i = __argc - 1; regValue == (DWORD)-1 && i; --i) {
        bool ok = false;
        if (hkeyCU)
            ok = RegQueryValueEx(hkeyCU, argv[i], 0, &regType, (LPBYTE)&regValue, &regLength) == ERROR_SUCCESS;
        if (!ok && hkeyLM)
            ok = RegQueryValueEx(hkeyLM, argv[i], 0, &regType, (LPBYTE)&regValue, &regLength) == ERROR_SUCCESS;
        if (!ok)
            regValue = -1;
    }
    if (hkeyCU)
        RegCloseKey(hkeyCU);
    if (hkeyLM)
        RegCloseKey(hkeyLM);
    if (regValue != (DWORD)-1 && regValue != (DWORD)-2)
        return regValue;
    static char msg[4048];

    wsprintf(msg,
             "%s\n\nClick Abort to exit the Application.\n"
             "Click Retry to Debug the Application..\n"
             "Click Ignore to continue running the Application.", 
             lpszCmdLine);
             
    return MessageBox(NULL, msg, "NSGlue_Assertion",
                      MB_ICONSTOP | MB_SYSTEMMODAL| 
                      MB_ABORTRETRYIGNORE | MB_DEFBUTTON3);
}