RE: [perl-win32-gui-hackers] -noflicker Feedback/bugs

[Stephen P. <Ste...@uc...>]

Yes yes yes.
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As was posted in the mail regarding the -noflicker option, as was =
written in the documentation for the noflicker option, and as was noted =
in the changelog for the noflicker option: IT BREAKS STUFF. If it didnt, =
it wouldnt be an option.
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I'm gratified to see that most of the stuff it's broken for you is =
nonstandard Win32::GUI stuff (I mean, not part of Win32::GUI itself but =
add-ons). I'm surprised that it breaks RichEdit, but not surprised that =
it breaks Graphics.
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The -noflicker option should be considered an alpha fix, something that =
I'm working on. You may be able to solve the problem you experience with =
disappearing richedit controls by calling InvalidateRect on them, or =
adding PRF_OWNED to the delivery of the WM_PRINT message in the =
CommonMsgLoops section of the GUI_MessageLoops.cpp file.
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Incidentally, the reason it breaks Graphics is because Graphics is just =
a DC, and thus is not "drawn" into a parent DC, but is stand-alone. =
WM_PRINT won't capture the contents of other DCs, it simply tells a =
widget to draw itself into the given DC, and one can't draw a DC into a =
DC.
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As far as RichEdit goes, I'm guessing it simply doesnt support WM_PRINT =
at all. It will require some looking into, and if all else fails making =
a compromise by just making the RichEdit and Graphics controls flicker =
like they used to.
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Steve

-----Original Message-----
From: per...@li... =
[mailto:per...@li...]On Behalf Of =
Jez White
Sent: 16 December 2003 14:11
To: guihackers
Subject: [perl-win32-gui-hackers] -noflicker Feedback/bugs


All,=20
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I've been testing with the latest source and I've found various issues =
with the -noflicker option.=20
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All the following controls resize correctly, but the contents aren't =
visible until the user interacts with the control (say moving a scroll =
bar). The contents of the control is windows grey.
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* Win32::GUI::Grid=20
* Win32::GUI::Scintilla=20
* RichEdit
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The following controls resize correctly, and the contents are correct =
but the control still flickers.
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* Win32::GUI::AxWindow
* Graphic control
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I've had a look through the source - but didn't get anywhere. I can =
provide examples if needed.
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Other than the issues, a great option. Nice work.
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Cheers,
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jez.
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