C＃：当窗体不集中时，如何重画窗体？

Question

I want to repaint/invalidate/refresh my form so that it updates seamlessly when it's not focused. How can I achieve this? Right now it will only update itself when I give it focus or move my mouse over it etc.

Edit: I tried using a timer that would call this.Invalidate(); every 25millisecond

Answer 1

Maybe Invalidate(); is what you're looking for, it forces the particular control (Whether it be a form or menu etc.) to redraw itself on the next update.

I've never used it myself so i'm curious if it actually works.

http://msdn.microsoft.com/en-us/library/598t492a.aspx