Setting close control causes screen flicker

[ImBatman]

When I disable/enable the close control (x) using the SetPanelAttribute(handle, ATTR_CLOSE_ITEM_VISIBLE, 0), I get a noticeable screen flicker. Is there anyway to update the control without getting the flicker?

[Jack J.]

I tried to reproduce what you described but I don't see what you describe. I can set the ATTR_CLOSE_ITEM_VISIBLE to 0 and it behaves as documented but I do not see the flicker.

Do you get this behavior for your specific application or for any application. If you can test this out with a simple application that doesn't do any thing else, we can try to narrow down the problem.

Regards,

Jack J.

Applications Engineer

National Instruments

[ImBatman]

Hello Jack,

I

[ImBatman]

Hello Jack,

I did some more experimenting with the ATTR_CLOSE_ITEM_VISIBLE feature to see if the flicker was only occurring with that specific program. I first tried the program on another computer to see if it was hardware specific. The flicker did occur, so ruling out hardware. I then coded up a simple program with a panel that just had a button that toggled the ATTR_CLOSE_ITEM_VISIBLE on and off. When I ran this program there was no flicker. I then started adding text boxes and graphics to the panel and got the flicker back. When you created your test program did your panel have other things on it?