How to disable all keys except letter and number keys?

Question

Keyboard

How to block pressing certain keys in Windows forms, that is, the user presses trl or alt and the key does not

work

private void Form1_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
        {
            e.SuppressKeyPress = true;
        }

Answer 1

https://docs.microsoft.com/en-us/dotnet/api/system...
https://docs.microsoft.com/en-us/dotnet/api/system...