public static void AddMessageFilter(ChartWinControl chartWinControl)
{
if (KeyFilter == null)
{
KeyFilter = new KeyMessageFilter(chartWinControl);
Application.AddMessageFilter(KeyFilter);
}
}
/// <summary>
/// Add KeyEventHandler to current application
/// </summary>
/// <param name="keh"></param>
static public void AddMessageFilter(KeyEventHandler keh)
{
if (KeyFilter == null)
{
KeyFilter = new KeyMessageFilter(new KeyEventHandler(keh));
Application.AddMessageFilter(KeyFilter);
}
}