[c#][windows]X-Mouse setting tool on Windows 7/Vista

XMouse.cs

// [X-Mouse setting tool on Windows 7/Vista]
// build on 64bit .NET 3.5:
//   c:\Windows\Microsoft.NET\Framework64\v3.5\csc.exe XMouse.cs
// or on 32bit .NET 3.5:
//   c:\Windows\Microsoft.NET\Framework\v3.5\csc.exe XMouse.cs
using Microsoft.Win32;

class XMouse {
  static void Main(string[] args) {
    if (args.Length == 0 || !(args[0] == "on" || args[0] == "off")) {
      ShowHelp();
      ShowXMouse();
      return;
    }
    bool followActivation = false;
    bool autoRaise = false;
    int raiseTime = 0;
    
    if (args[0] == "on") {
      followActivation = true;
      if (args.Length == 2) {
        try {
          raiseTime = int.Parse(args[1]);
          autoRaise = true;
        } catch (System.FormatException ex) {
          System.Console.WriteLine(ex);
          ShowHelp();
          ShowXMouse();
          return;
        }
      }
    }
    
    PrintNewXMouse(followActivation, autoRaise, raiseTime);
    SetXMouse(followActivation, autoRaise, raiseTime);
    System.Console.WriteLine("Setting enabled after re-Logined.");
    ShowXMouse();
  }
  
  static void PrintNewXMouse(bool followActivation, bool autoRaise, int raiseTime) {
    System.Console.WriteLine("New XMouse Settings:");
    System.Console.WriteLine("  Follow Activation: {0}", followActivation);
    System.Console.WriteLine("  Auto Raise: {0}", autoRaise);
    System.Console.WriteLine("  Raise Time (msec): {0}", raiseTime);
  }
  
  static void ShowHelp() {
    System.Console.WriteLine("Usage: XMouse [on [NUM]|off]");
    System.Console.WriteLine("Options: ");
    System.Console.WriteLine(" on: follow mouse activation");
    System.Console.WriteLine(" on NUM: follow activation then auto raise after NUM msec");
    System.Console.WriteLine(" off: disable follow activation/auto raise");
  }
  
  static void ShowXMouse() {
    using (RegistryKey regkey = Registry.CurrentUser.OpenSubKey(@"Control Panel\Desktop")) {
      byte[] masks = regkey.GetValue("UserPreferencesMask") as byte[];
      System.Console.WriteLine("Current XMouse Settings:");
      System.Console.WriteLine("  Follow Activation: {0}", (masks[0] & 0x01) != 0);
      System.Console.WriteLine("  Auto Raise: {0}", (masks[0] & 0x40) != 0);
      System.Console.WriteLine("  Raise Time (msec): {0}", regkey.GetValue("ActiveWndTrkTimeout"));
    }
  }
  
  static void SetXMouse(bool followActivation, bool autoRaise, int raiseTime) {
    using (RegistryKey regkey = Registry.CurrentUser.OpenSubKey(@"Control Panel\Desktop", true)) {
      byte[] masks = regkey.GetValue("UserPreferencesMask") as byte[];
      if (followActivation) {
        masks[0] |= 0x01;
      } else {
        masks[0] = (byte) (masks[0] & ~0x01);
      }
      if (autoRaise) {
        masks[0] |= 0x40;
      } else {
        masks[0] = (byte) (masks[0] & ~0x40);
      }
      regkey.SetValue("UserPreferencesMask", masks);
      if (autoRaise) {
        regkey.SetValue("ActiveWndTrkTimeout", raiseTime);
      } else {
        regkey.DeleteValue("ActiveWndTrkTimeout", false);
      }
    }
  }
}