System.Windows.Forms.TextBoxBase.ProcessDialogKey C# (CSharp) Method

		protected override bool ProcessDialogKey (Keys keyData)
		{
			// The user can use Ctrl-Tab or Ctrl-Shift-Tab to move control focus
			// instead of inserting a Tab.  However, the focus-moving-tab-stuffs
			// doesn't work if Ctrl is pushed, so we remove it before sending it.
			if (accepts_tab && (keyData & (Keys.Control | Keys.Tab)) == (Keys.Control | Keys.Tab))
				keyData ^= Keys.Control;
				
			return base.ProcessDialogKey(keyData);
		}