Question

I have a from that has a text box and I’m trying to determine if Ctrl-R is pressed within this text box. I can detect the keys separately using:

private void CheckKeys(object sender, System.Windows.Forms.KeyPressEventArgs e)
{
    if(e.KeyChar == (char)Keys.R)
    {
        // ...
    }
    if ((Control.ModifierKeys & Keys.Control) == Keys.Control)
    {
        // ...
    }
}

How do I determine if they pressed at the same time?

Answer 1

If possible, change your event to KeyDown/KeyUp, everything will be easier. (Note that this solution is not always applicable)

private void textBox1_KeyDown(object sender, KeyEventArgs e)
{
   if (e.KeyData == (Keys.Control | Keys.R))
   {

   }
}