BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  TImages Flicker          BorlandTalk.com Forum Index -> C++ Builder (Graphics) View previous topic :: View next topic   Author Message Roger Guest Posted: Mon Sep 04, 2006 8:08 pm    Post subject: TImages Flicker I have several TImages, one with a graph with edge-to-edge crosshair cursors and others with graph labels. Some of the labels are no problem but others cause flicker on the graph and some of the labels that are being updated. If I place one of the problem labels to the left of the graph it won't cause flicker when written to, however, if I put it above, below, or to the right of the graph I get flicker. Any guidance as to what to look for, or check, would be welcome. Thanks, Roger Back to top JD Guest Posted: Tue Sep 05, 2006 8:10 am    Post subject: Re: TImages Flicker "Roger" <aretae (AT) magma (DOT) ca> wrote: Quote: [...] Any guidance as to what to look for, or check, would be welcome. Sounds like a WM_PAINT issue. You need to reduce the code to the absolute minimum that demonmstrates the problem and post it. ~ JD Back to top Roger Guest Posted: Tue Sep 05, 2006 3:03 pm    Post subject: Re: TImages Flicker I found that using ControlStyle << csOpaque; on the form fixes my problem. Back to top Vladimir Stefanovic Guest Posted: Tue Sep 05, 2006 8:07 pm    Post subject: Re: TImages Flicker Quote: I have several TImages, one with a graph with edge-to-edge crosshair cursors and others with graph labels. Some of the labels are no problem but others cause flicker on the graph and some of the labels that are being updated. If I place one of the problem labels to the left of the graph it won't cause flicker when written to, however, if I put it above, below, or to the right of the graph I get flicker. Try this: // TYourForm is a form where your TImages are placed __fastcall TYourForm::TYourForm(TComponent* Owner) : TForm(Owner) { // ... DoubleBuffered = true; // ... } -- Best Regards, Vladimir Stefanovic Back to top Roger Guest Posted: Tue Sep 05, 2006 8:59 pm    Post subject: Re: TImages Flicker Thanks Vladimir I will keep that in mind but for now ControlStyle << csOpaque; seems to work well. 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