public static void Main()
{
if (SingleInstance <App> .InitializeAsFirstInstance(Unique))
{
var application = new App();
// Register Shell Context Menu
// full path to self, %L is placeholder for selected file
string menuCommand = string.Format(
"\"{0}\" \"%L\"", System.Reflection.Assembly.GetExecutingAssembly().Location);
// register the context menu
FileShellExtension.Register(App.FileType,
App.KeyName, App.MenuText,
menuCommand);
// register the context menu
FileShellExtension.Register("Directory",
App.KeyName, App.MenuText,
menuCommand);
application.InitializeComponent();
application.Run();
// Allow single instance code to perform cleanup operations
SingleInstance <App> .Cleanup();
}
}
private void registerContextHandlerToolStripMenuItem_Click(object sender, EventArgs e)
{
var menuCommand = $"\"{Application.ExecutablePath}\" \"%L\"";
FileShellExtension.Register("dllfile", "OleWoo Context Menu",
"Open with OleWoo", menuCommand);
}
private void buttonRegister_Click(object sender, EventArgs e)
{
try
{
if (FileShellExtension.IsRegistered())
{
FileShellExtension.UnRegister();
}
else
{
FileShellExtension.Register();
}
}
catch (UnauthorizedAccessException)
{
MessageBox.Show("Please run Application as local Admin");
}
buttonRegister.Text = FileShellExtension.IsRegistered() ? "Unregister ShellExtensions" : "Register ShellExtensions";
}
private void ForceUnregister_Click(object sender, RoutedEventArgs e)
{
try
{
FileShellExtension.Unregister("*", RegistryKey);
}
catch (Exception ex)
{
MessageBox.Show("Failed to unregister File Context Menu: " + ex.Message, "Error", MessageBoxButton.OK,
MessageBoxImage.Error);
}
try
{
FileShellExtension.Unregister("Directory", RegistryKey);
}
catch (Exception ex)
{
MessageBox.Show("Failed to unregister Folder Context Menu: " + ex.Message, "Error", MessageBoxButton.OK,
MessageBoxImage.Error);
}
}
public OptionsControl()
{
InitializeComponent();
buttonRegister.Text = FileShellExtension.IsRegistered() ? "Unregister ShellExtensions" : "Register ShellExtensions";
}
private void unregisterContextHandlerToolStripMenuItem_Click(object sender, EventArgs e)
{
FileShellExtension.Unregister("dllfile", "OleWoo Context Menu");
}
private static bool HandleInput(IList <string> args)
{
// extract this program's guid to use as the registry key for insertion/extraction
var assembly = Assembly.GetExecutingAssembly();
var guidAttribute = (GuidAttribute)assembly.GetCustomAttributes(typeof(GuidAttribute), true)[0];
var handled = false;
var message = "";
// register
if (args.Count == 0 || string.Compare(args[0], "-register", StringComparison.OrdinalIgnoreCase) == 0)
{
// keyword detected, do not process as image
handled = true;
// elevation is required for registry access
if (!IsElevated())
{
message = "Registering requires administrator rights. Run as administrator and try again.";
}
else
{
// full path to self, %L is placeholder for selected file
var menuCommand = $"\"{Application.ExecutablePath}\" \"%L\"";
// the icon gets copied to the same output directory, so find it there
var iconPath = Path.Combine(Path.GetDirectoryName(Application.ExecutablePath), IconFilename);
// register the context menu for each file type
try
{
foreach (var t in FileTypes)
{
FileShellExtension.Register(t, guidAttribute.Value, MenuText, menuCommand, iconPath);
}
message = $"Registration successful. \"{MenuText}\" will appear as an option on the context menu.";
}
catch (ArgumentException)
{
message = "Unable to modify registry. No operation performed.";
}
catch (AccessViolationException)
{
message = "Insufficient permission to modify registry. Check privileges and policy.";
}
catch (Exception ex)
{
message = ex.Message;
}
}
}
// unregister
else if (string.Compare(args[0], "-unregister", StringComparison.OrdinalIgnoreCase) == 0)
{
handled = true;
// elevation is required for registry access
if (IsElevated() == false)
{
message = "Unregistering requires administrator rights.";
}
else
{
try
{
// unregister the context menu for each file type
foreach (var t in FileTypes)
{
FileShellExtension.Unregister(t, guidAttribute.Value);
}
message = "Successfully unregistered. Context menu entry removed.";
}
catch (ArgumentException)
{
message = "Unable to modify registry. No operation performed.";
}
catch (AccessViolationException)
{
message = "Insufficient permission to modify registry. Check privileges and policy.";
}
catch (Exception ex)
{
message = ex.Message;
}
}
}
if (!string.IsNullOrEmpty(message))
{
MessageBox.Show(message);
}
// command line did not contain an action
return(handled);
}
