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Re: Question to UPP developers: the issue with windows rendering (Windows XP) [message #29563 is a reply to message #29539]

Sat, 30 October 2010 13:45

porto is currently offline

porto
Messages: 51
Registered: March 2007

Member

There was found, I think, a good way to get away of this "issue" (the temporary addition to an extended style of windows a flag WS_EX_KOMPOSITED *) - but I want to find the reason of it.
Do not judge strictly an amateur in programming. Embarassed

Embarassed

After a series of experiments with MS Spy++ utility I made some conclusions, this "issue" has two causes:
1. Child windows of traditional Windows applications have a flag of style CS_SAVEBITS. Child windows of UPP apps, this style does not have (or have, but not all).
After the forced set of this flag to all windows, "issue" only occurs if UPP application is busy, for example when I opening a package in TheIDE or doing "Rescan Code".
2. If UPP app does not busy (idle) and it creates the child window, the parent window is not repainting. But if UPP app is busy and it creates the child window, in this case, for some reason is starting repainting of the parent window or region of it, and CS_SAVEBITS is no longer helps.
If in this case the parent window or region of it does not repaint and all the child windows would have a flag CS_SAVEBITS (like in traditional applications), then the "issue" would not appear (IMHO).
This was only my best guess, do not take very seriously. Rolling Eyes

Rolling Eyes

* With WS_EX_COMPOSITED set, all descendants of a window get bottom-to-top painting order using double-buffering. Bottom-to-top painting order allows a descendent window to have translucency (alpha) and transparency (color-key) effects, but only if the descendent window also has the WS_EX_TRANSPARENT bit set. Double-buffering allows the window and its descendents to be painted without flicker.

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[Message index]

		Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Tue, 12 October 2010 09:05
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: koldo on Wed, 13 October 2010 08:53
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Wed, 13 October 2010 10:49
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: koldo on Wed, 13 October 2010 12:24
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Wed, 13 October 2010 14:18
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: unodgs on Wed, 13 October 2010 15:07
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Wed, 13 October 2010 15:37
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Wed, 13 October 2010 18:44
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Wed, 13 October 2010 20:01
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: cbpporter on Wed, 13 October 2010 20:12
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Wed, 13 October 2010 20:23
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Thu, 14 October 2010 10:45
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Thu, 14 October 2010 18:48
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mr_ped on Thu, 14 October 2010 11:13
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Thu, 14 October 2010 11:22
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: dolik.rce on Thu, 14 October 2010 19:42
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Thu, 14 October 2010 20:12
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Fri, 15 October 2010 13:53
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Fri, 15 October 2010 13:55
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Fri, 15 October 2010 14:20
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Fri, 15 October 2010 14:31
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Fri, 15 October 2010 14:47
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Fri, 15 October 2010 16:37
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Sat, 16 October 2010 08:24
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Sat, 16 October 2010 08:38
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Sat, 16 October 2010 10:01
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Sat, 16 October 2010 10:24
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Sat, 16 October 2010 10:42
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Mon, 25 October 2010 16:11
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Tue, 26 October 2010 09:56
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Wed, 27 October 2010 14:56
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Wed, 27 October 2010 19:37
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Wed, 27 October 2010 21:44
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Mon, 01 November 2010 09:56
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Mon, 01 November 2010 10:21
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Thu, 04 November 2010 14:27
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Sat, 30 October 2010 13:45
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Mon, 01 November 2010 10:03
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Wed, 03 November 2010 17:07
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Thu, 04 November 2010 14:31
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Thu, 04 November 2010 15:18
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Thu, 11 November 2010 14:34
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Wed, 17 November 2010 10:19
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Wed, 17 November 2010 11:22
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Wed, 17 November 2010 11:36
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Tue, 26 October 2010 11:04
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Sat, 20 November 2010 18:03
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Sat, 20 November 2010 21:10
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Mon, 22 November 2010 19:07
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Mon, 22 November 2010 21:00
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: mirek on Wed, 24 November 2010 14:58
		Re: Question to UPP developers: the issue with windows rendering (Windows XP) By: porto on Thu, 25 November 2010 08:12

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