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c#winformskeydownprintscreen

Form_Keydown event is not working when PrintScreen is pressed

I'm trying to detect the Print Screen key on my form, but keys like Prtsc and SysRq don't fire the KeyDown event..

    private void Form1_KeyDown(object sender, KeyEventArgs e)
    {
        // Trying to detect if it fires KeyDown, but it doesn't
        MessageBox.Show(e.KeyValue.ToString());
    }

I can't figure it out, maybe I'm really dumb..

Solution

  • It can be done, but it's not straightforward. You can't do it with the KeyPress or KeyDown events: as you have discovered, it doesn't make them fire.

    But you can still do it with c#: you just have to use the Windows APIs. Because the relevant code is lengthy, I'm posting the link:

    Capturing the Print Screen Key

    Incidentally, you're not dumb. :) Even though this seems like it should have an obvious, simple answer, it doesn't: this is genuinely complex to make happen. But it can be done.