GUI/StartupManager.cs
author moel.mich
Sat, 25 Jun 2011 14:46:28 +0000
changeset 304 16a86362c2ca
parent 142 48e487749709
child 344 3145aadca3d2
permissions -rw-r--r--
Changed the maximum buffer size for double buffering of controls that isn't disposed after each draw call to the size of the screen. This should reduce the memory allocation and disposing on each sensor update. Also page faults are no longer increasing with this change.
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/*
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  Version: MPL 1.1/GPL 2.0/LGPL 2.1
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  The contents of this file are subject to the Mozilla Public License Version
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  1.1 (the "License"); you may not use this file except in compliance with
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  the License. You may obtain a copy of the License at
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  http://www.mozilla.org/MPL/
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  Software distributed under the License is distributed on an "AS IS" basis,
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  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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  for the specific language governing rights and limitations under the License.
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  The Original Code is the Open Hardware Monitor code.
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  The Initial Developer of the Original Code is 
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  Michael Möller <m.moeller@gmx.ch>.
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  Portions created by the Initial Developer are Copyright (C) 2009-2010
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  the Initial Developer. All Rights Reserved.
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  Contributor(s):
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  Alternatively, the contents of this file may be used under the terms of
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  either the GNU General Public License Version 2 or later (the "GPL"), or
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  the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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  in which case the provisions of the GPL or the LGPL are applicable instead
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  of those above. If you wish to allow use of your version of this file only
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  under the terms of either the GPL or the LGPL, and not to allow others to
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  use your version of this file under the terms of the MPL, indicate your
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  decision by deleting the provisions above and replace them with the notice
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  and other provisions required by the GPL or the LGPL. If you do not delete
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  the provisions above, a recipient may use your version of this file under
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  the terms of any one of the MPL, the GPL or the LGPL.
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*/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Runtime.InteropServices;
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using System.Security;
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using System.Security.Principal;
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using System.Windows.Forms;
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using Microsoft.Win32;
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using OpenHardwareMonitor.TaskScheduler;
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namespace OpenHardwareMonitor.GUI {
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  public class StartupManager {
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    private TaskSchedulerClass scheduler;
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    private bool startup;
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    private bool isAvailable;
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    private const string REGISTRY_RUN =
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      @"Software\Microsoft\Windows\CurrentVersion\Run";
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    private bool IsAdministrator() {
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      try {
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        WindowsIdentity identity = WindowsIdentity.GetCurrent();
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        WindowsPrincipal principal = new WindowsPrincipal(identity);
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        return principal.IsInRole(WindowsBuiltInRole.Administrator);
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      } catch {
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        return false;
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      }
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    }
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    public StartupManager() {
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      int p = (int)System.Environment.OSVersion.Platform;
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      if ((p == 4) || (p == 128)) {
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        scheduler = null;        
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        isAvailable = false;
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        return;
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      }
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      if (IsAdministrator()) {
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        try {
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          scheduler = new TaskSchedulerClass();
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          scheduler.Connect(null, null, null, null);
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        } catch {
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          scheduler = null;
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        }
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        if (scheduler != null) {
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          try {
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            // check if the taskscheduler is running
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            IRunningTaskCollection collection = scheduler.GetRunningTasks(0);            
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            ITaskFolder folder = scheduler.GetFolder("\\Open Hardware Monitor");
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            IRegisteredTask task = folder.GetTask("Startup");
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            startup = (task != null) && 
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              (task.Definition.Triggers.Count > 0) &&
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              (task.Definition.Triggers[1].Type == 
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                TASK_TRIGGER_TYPE2.TASK_TRIGGER_LOGON) &&
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              (task.Definition.Actions.Count > 0) &&
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              (task.Definition.Actions[1].Type ==
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                TASK_ACTION_TYPE.TASK_ACTION_EXEC) &&
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              (task.Definition.Actions[1] as IExecAction != null) &&
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              ((task.Definition.Actions[1] as IExecAction).Path ==
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                Application.ExecutablePath);
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          } catch (IOException) {
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            startup = false;
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          } catch (UnauthorizedAccessException) {
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            scheduler = null;
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          } catch (COMException) {
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            scheduler = null;
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          }
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        } 
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      } else {
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        scheduler = null;
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      }
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      if (scheduler == null) {
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        try {
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          using (RegistryKey key =
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            Registry.CurrentUser.OpenSubKey(REGISTRY_RUN)) {
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            startup = false;
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            if (key != null) {
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              string value = (string)key.GetValue("OpenHardwareMonitor");
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              if (value != null)
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                startup = value == Application.ExecutablePath;
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            }            
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          }
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          isAvailable = true;
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        } catch (SecurityException) {
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          isAvailable = false;
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        }
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      } else {
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        isAvailable = true;
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      }
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    }
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    private void CreateSchedulerTask() {
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      ITaskDefinition definition = scheduler.NewTask(0);
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      definition.RegistrationInfo.Description =
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        "This task starts the Open Hardware Monitor on Windows startup.";
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      definition.Principal.RunLevel =
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        TASK_RUNLEVEL.TASK_RUNLEVEL_HIGHEST;
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      definition.Settings.DisallowStartIfOnBatteries = false;
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      definition.Settings.StopIfGoingOnBatteries = false;
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      definition.Settings.ExecutionTimeLimit = "PT0S";
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      ILogonTrigger trigger = (ILogonTrigger)definition.Triggers.Create(
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        TASK_TRIGGER_TYPE2.TASK_TRIGGER_LOGON);
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      IExecAction action = (IExecAction)definition.Actions.Create(
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        TASK_ACTION_TYPE.TASK_ACTION_EXEC);
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      action.Path = Application.ExecutablePath;
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      action.WorkingDirectory =
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        Path.GetDirectoryName(Application.ExecutablePath);
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      ITaskFolder root = scheduler.GetFolder("\\");
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      ITaskFolder folder;
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      try {
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        folder = root.GetFolder("Open Hardware Monitor");
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      } catch (IOException) {
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        folder = root.CreateFolder("Open Hardware Monitor", "");
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      }
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      folder.RegisterTaskDefinition("Startup", definition,
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        (int)TASK_CREATION.TASK_CREATE_OR_UPDATE, null, null,
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        TASK_LOGON_TYPE.TASK_LOGON_INTERACTIVE_TOKEN, "");
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    }
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    private void DeleteSchedulerTask() {
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      ITaskFolder root = scheduler.GetFolder("\\");
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      try {
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        ITaskFolder folder = root.GetFolder("Open Hardware Monitor");
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        folder.DeleteTask("Startup", 0);
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      } catch (IOException) { }
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      try {
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        root.DeleteFolder("Open Hardware Monitor", 0);
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      } catch (IOException) { }
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    }
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    private void CreateRegistryRun() {
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      RegistryKey key = Registry.CurrentUser.CreateSubKey(REGISTRY_RUN);     
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      key.SetValue("OpenHardwareMonitor", Application.ExecutablePath);
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    }
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    private void DeleteRegistryRun() {
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      RegistryKey key = Registry.CurrentUser.CreateSubKey(REGISTRY_RUN);
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      key.DeleteValue("OpenHardwareMonitor");
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    }
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    public bool IsAvailable {
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      get { return isAvailable; }
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    }
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    public bool Startup {
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      get {
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        return startup;
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      }
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      set {
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        if (startup != value) {          
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          if (isAvailable) {
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            if (scheduler != null) {
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              if (value)
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                CreateSchedulerTask();
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              else
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                DeleteSchedulerTask();
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              startup = value;
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            } else {
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              try {
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                if (value)
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                  CreateRegistryRun();
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                else
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                  DeleteRegistryRun();
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                startup = value;
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              } catch (UnauthorizedAccessException) {
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                throw new InvalidOperationException();
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              }
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            }
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          } else {
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            throw new InvalidOperationException();
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          }
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        }
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      }
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    }
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  }
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}