/// <summary>
/// Tests whether or not a given key combination is a valid key stroke by invoking the <see cref="ValidateKeyStroke"/> event.
/// </summary>
/// <param name="keyStroke">The key combination to be tested.</param>
/// <returns>True if the key combination is a valid key stroke; False otherwise.</returns>
protected bool IsValidKeyStroke(XKeys keyStroke)
{
ValidateKeyStrokeEventArgs e = new ValidateKeyStrokeEventArgs(keyStroke);
this.OnValidateKeyStroke(e);
return(e.IsValid);
}
/// <summary>
/// Raises the <see cref="ValidateKeyStroke"/> event.
/// </summary>
/// <param name="e">A <see cref="ValidateKeyStrokeEventArgs"/> that contains the event data.</param>
protected virtual void OnValidateKeyStroke(ValidateKeyStrokeEventArgs e)
{
XKeys key = GetKeyPressed(e.KeyStroke);
e.IsValid = !(key == XKeys.ControlKey || key == XKeys.AltKey || key == XKeys.ShiftKey);
if (_validateKeyStrokeEventHandler != null)
{
_validateKeyStrokeEventHandler.Invoke(this, e);
}
}
