How do you detect simultaneous keypresses such as “Ctrl + T” in VB.NET?

Question

I am trying to detect the keys \"Control\" and \"t\" being pressed simultaneously in VB.NET. The code I have so far is as follows:

Private Sub frmTimingP2P_K         


        

Answer 1

First of all, And in your code should be AndAlso since it’s a logical operator. And in VB is a bit operator. Next, you can use the Modifiers property to test for modifier keys:

If (e.KeyCode And Not Keys.Modifiers) = Keys.T AndAlso e.Modifiers = Keys.Ctrl Then
    MessageBox.Show("Ctrl + T")
End If

The e.KeyCode And Not Keys.Modifiers in the first part of the condition is necessary to mask out the modifier key.

If e.Modifiers = Keys.Ctrl can also be written as If e.Control.

Alternatively, we can collate these two queries by asking directly whether the combination Ctrl+T was pressed:

If e.KeyCode = (Keys.T Or Keys.Ctrl) Then …

In both snippets we make use of bit masks.