Determine whether modifier key was pressed

Question

I know how to obtain which modifier key was pressed in C# but I don't know how I can actually check if any modifier key was pressed. I need to check it in KeyUp event, is it possible any other way than doing something like if(e.KeyCode != Keys.Control && e.KeyCode != Keys.Alt && ...) ? Thanks.

Answer 1

if ((Control.ModifierKeys & Keys.Shift) != 0) 

will help you detect whether a modifier key (e.g. ctrl or shift) was pressed. Check the Post below for reference:

How to detect the currently pressed key?

Answer 2

To make sure no modifier key is pressed you can check if ModifierKey equals Keys.None.

if (ModifierKeys == Keys.None) ...

Answer 3

The KeyEventArgs class has properties that you can check. For example, to see if the Alt key was pressed, you can write:

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