WPF shortcut with ALT

Question

I need a problem. I would like catch alt codes (ALT + 64 = @) in Window. My code is correct for shortcut with Control but when I changed for ALT, dont work and in Key property is value "System". This is my code:

Correct:

if (e.Key == Key.S && (Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)//CTRL+S

Error:

 if (e.Key == Key.S && (Keyboard.Modifiers & ModifierKeys.Alt) == ModifierKeys.Alt) //ALT+S dont work - e.Key="System"

And my second question is how to simulate ALT+64 (multiple keys). Top example is only for ALT+6

Thanks

Prasanth V J · Accepted Answer · 2016-12-22 10:02:00Z

Since you are using WPF best way of handling keyboard shortcuts is through InputGesture

 /// <summary> /// Interaction logic for MainWindow.xaml /// </summary> public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } private void ExitCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e) { e.CanExecute = true; } private void ExitCommand_Executed(object sender, ExecutedRoutedEventArgs e) { Console.WriteLine("Your implementation"); } } public static class CustomCommands { public static readonly RoutedUICommand Exit = new RoutedUICommand ( "Exit", "Exit", typeof(CustomCommands), new InputGestureCollection() { new KeyGesture(Key.S, ModifierKeys.Alt) } ); //Define more commands here, just like the one above }

Add this to xaml

<Window.CommandBindings> <CommandBinding Command="self:CustomCommands.Exit" CanExecute="ExitCommand_CanExecute" Executed="ExitCommand_Executed" /> </Window.CommandBindings>

SnowballTwo · Accepted Answer · 2016-12-22 10:15:41Z

0

Try this:

if( e.KeyboardDevice.Modifiers == ModifierKeys.Alt && e.SystemKey == Key.S )

answered Dec 22, 2016 at 10:15

SnowballTwo

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3 Comments

bluray Over a year ago

This is OK, but i would like press this shortcut: ALT+53 this is ascii code for number 5

SnowballTwo Over a year ago

Since numbers aren't valid enum keys, microsoft named the number keys "DX" ("Key.D5") in your case.

SnowballTwo Over a year ago

Key.D5 is the number key with the number 5, which you'll find above the 'T' Key, or centered by the other numbers on the numpad, and for which you asked in your first comment to this answer. You can simply replace the "Key.S" from my answer with "Key.D5"

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