RE: [Microsofts_C_Sharp] flicker free refreshing

[tweety]

when a form receives a paint event it actually erases itself then calls ur paint event. this is why u get the flicker. using the backgroundimage property doesn't erase the form -> no more flicker.   what u want to do is to call pictureForm.SetStyle(UserPaint|AllPaintingInWmPaint, True); in ur constructor so that the form doesn't erase itself. then override the OnPaint virtual method and do ur drawing there.   ---------------------------------- Peace and love, Tweety [EMAIL PROTECTED] - [EMAIL PROTECTED] YahooID: tweety_04_01 From: Ben Watson [mailto:[EMAIL PROTECTED] Sent: Saturday, September 11, 2004 7:38 PM To: [EMAIL PROTECTED] Subject: [Microsofts_C_Sharp] flicker free refreshing Hi, this is the first time I’ve written to the list, but I have something I can’t figure out how to resolve.   Basically, I have a form that paints an image into the entire client area. The image is updated continually, so I I’m calling pictureForm.Refresh() a lot.   I’ve tried two different methods. In one, I override the Paint method and draw the bitmap using DrawImage(). This lets me scale the image to the window size. It’s with this method I get the flickering.   The second method I’ve tried is to use the BackgroundImage property of a Form. This doesn’t let me resize the image to fit the window, but there is no flicker when I refresh.   Can anyone tell me what’s going on? How does BackgroundImage work that it can paint with no flicker. How can I get my Paint function to draw the image flicker-free?   Thanks for any help you might offer, Ben Watson Yahoo! Groups Sponsor ADVERTISEMENT Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Microsofts_C_Sharp/   To unsubscribe from this group, send an email to: [EMAIL PROTECTED]   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.