How to check if a key was pressed in C#? (.NET 6)

Question

I would like to check if the alt key was pressed in c#. I could only find old information that didn't work. It would be helpful if you send an example with the alt key. Thanks in advance!

Please, specify UI: Win Forms, WPF, something else? – Dmitry Bychenko Mar 04 '22 at 20:32 — Dmitry Bychenko, Mar 04 '22 at 20:32

score 1 · Accepted Answer · answered Mar 04 '22 at 20:08

If you need to detect a modifier key outside of a KeyEventHandler method, you can use the static Keyboard class from System.Windows.Input.

Example from my WPF .NET 6.0 Application on Windows

if (Keyboard.Modifiers.HasFlag(ModifierKeys.Alt))
{
    // Do something
}

score 0 · Answer 2 · answered Mar 04 '22 at 20:03

0

KeyEventArgs

There was a similar post that provides a solution for this. Look for the answer by Jim Mischel

You can use the KeyEventArgs Class

if (e.Alt)
{
    // Alt key was pressed
}

answered Mar 04 '22 at 20:03

jasonc

213
1
7

Not sure about earlier versions but this is not valid in .NET 6 and above – henry-js Dec 14 '22 at 09:57

How to check if a key was pressed in C#? (.NET 6)

2 Answers2