mirror-processhacker/trunk/ProcessHacker/Symbols/SymbolProviderExtensions.cs

/*
 * Process Hacker - 
 *   symbols extension functions
 * 
 * Copyright (C) 2009 wj32
 * 
 * This file is part of Process Hacker.
 * 
 * Process Hacker is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Process Hacker is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Process Hacker.  If not, see <http://www.gnu.org/licenses/>.
 */

using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Windows.Forms;
using ProcessHacker.Components;
using ProcessHacker.Native;
using ProcessHacker.Native.Api;
using ProcessHacker.Native.Objects;

namespace ProcessHacker.Native.Symbols
{
    public static class SymbolProviderExtensions
    {
        public static void ShowWarning(IWin32Window window, bool force)
        {
            if (Properties.Settings.Default.DbgHelpWarningShown && !force)
                return;

            try
            {
                var modules = ProcessHandle.GetCurrent().GetModules();

                foreach (var module in modules)
                {
                    if (module.FileName.ToLowerInvariant().EndsWith("dbghelp.dll"))
                    {
                        FileInfo fi = new FileInfo(module.FileName);

                        if (!File.Exists(fi.DirectoryName + "\\symsrv.dll"))
                        {
                            if (!force)
                                Properties.Settings.Default.DbgHelpWarningShown = true;

                            if (OSVersion.HasTaskDialogs)
                            {
                                TaskDialog td = new TaskDialog();
                                bool verificationChecked;

                                td.CommonButtons = TaskDialogCommonButtons.Ok;
                                td.WindowTitle = "Process Hacker";
                                td.MainIcon = TaskDialogIcon.Warning;
                                td.MainInstruction = "Microsoft Symbol Server not supported";
                                td.Content = "The Microsoft Symbol Server is not supported by your version of dbghelp.dll " + 
                                    "or could not be loaded. " +
                                    "To ensure you have the latest version of dbghelp.dll, download " +
                                    "<a href=\"dbghelp\">Debugging " + 
                                    "Tools for Windows</a> and configure Process Hacker to " +
                                    "use its version of dbghelp.dll. If you have the latest version of dbghelp.dll, " +
                                    "ensure that symsrv.dll resides in the same directory as dbghelp.dll.";
                                td.EnableHyperlinks = true;
                                td.Callback = (taskDialog, args, callbackData) =>
                                    {
                                        if (args.Notification == TaskDialogNotification.HyperlinkClicked)
                                        {
                                            try
                                            {
                                                System.Diagnostics.Process.Start(
                                                    "http://www.microsoft.com/whdc/devtools/debugging/default.mspx");
                                            }
                                            catch (Exception ex)
                                            {
                                                MessageBox.Show("Could not open the hyperlink: " + ex.ToString(),
                                                    "Process Hacker", MessageBoxButtons.OK, MessageBoxIcon.Error);
                                            }

                                            return true;
                                        }

                                        return false;
                                    };
                                td.VerificationText = force ? null : "Do not display this warning again";
                                td.VerificationFlagChecked = true;

                                td.Show(window, out verificationChecked);

                                if (!force)
                                    Properties.Settings.Default.DbgHelpWarningShown = verificationChecked;
                            }
                            else
                            {
                                MessageBox.Show(window, "The Microsoft Symbol Server is not supported by your version of dbghelp.dll " +
                                    "or could not be loaded. To ensure you have the latest version of dbghelp.dll, download " +
                                    "Debugging Tools for Windows and configure Process Hacker to use its version of dbghelp.dll. " +
                                    "If you have the latest version of dbghelp.dll, ensure that symsrv.dll resides in the same " +
                                    "directory as dbghelp.dll.", "Process Hacker", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                            }
                        }

                        break;
                    }
                }
            }
            catch (Exception ex)
            {
                Logging.Log(ex);
            }
        }
    }
}