Comments on Real Software: Reduce Flickering on Windows

I tried these suggestions on my canvas (a graph th...

2009-09-09T12:37:39.871-05:00

I tried these suggestions on my canvas (a graph that updates when the user changes variables via updown arrows etc.). It didn't help much, but didn't make things any worse either.

I guess what we really need is a DoubleBuffer property for the window itself, not just for canvases. It still surprises me that such a basic thing isn't handled by the OS as it is in Mac and Linux.

So any idea when this issue will be addressed? For...

2009-09-02T22:15:26.541-05:00

So any idea when this issue will be addressed? For me personally flickering in built-in controls is a major showstopper.

Our applications developed with RB tend to cause s...

2009-09-02T17:39:01.975-05:00

Our applications developed with RB tend to cause severe flickering on Windows platforms (and along with the usual application crash on exit make the apps look unprofessional to say the least). The same apps on Mac look smooth and professional - so I'd say RealSoftware has quite a bit of work to do to resolve these issues.

I'm not sure Thom has addressed the issue of double-buffering a window (which is what we "draw" into), so the suggestions for resolving flickering are all but useless in real world business apps.

Frankly, RB apps on Windows look terrible.

Thanks for these tips Thom. I would add that makin...

2009-08-14T03:25:53.080-05:00

Thanks for these tips Thom. I would add that making an intensive use of XXX.Refresh generates a big machine resources usage, that sometimes provokes high fans rpm and temperature growing. So XXX.Refresh should be used only when it is absolutely needed.

Vista is not double-buffered. I'm not sure abo...

2009-08-13T22:17:19.755-05:00

Vista is not double-buffered. I'm not sure about 7, I haven't tested it personally, but I don't believe it does either.

is Vista or Windows 7 double buffered?

2009-08-13T22:12:38.926-05:00

is Vista or Windows 7 double buffered?

The problems with flicker have very little to do w...

2009-08-13T21:21:20.297-05:00

The problems with flicker have very little to do with "user" controls like custom drawn stuff... we can manage that. The REALproblem is all of the "built-in" controls that look terrible and which we have no control over.

Thanks for the tips. What about other contorls su...

2009-08-13T20:47:31.915-05:00

Thanks for the tips.

What about other contorls such as a TabControl? It flickers quite badly while resized.