[Mono-winforms-list] Blank windows

Natalia Portillo claunia at claunia.com
Sun Dec 13 11:03:54 EST 2009

No, I have my own framework for translation.

However it only changes the button images, the forms background image and
transparency key are constant, defined as so:
           this.BackgroundImage =
            this.TransparencyKey = System.Drawing.Color.Yellow;

Once the "blank window" bug appeared it doesn't work until restarting the
whole machine.
Even then, if I've put a conditional "if running on mono don't set that
parameters" the windows still appear blank.

Tested on following environments:
Mac OS X 10.6 (64-bit kernel), Mono
Mac OS X 10.6 (64-bit kernel), Mono 2.4.3
Mac OS X 10.6 (64-bit kernel), Mono 2.6 RC 1
Gentoo Linux x86-64 + KDE4 (composite enabled and working), Mono 2.4.3
OpenSuSE 11.2 (fresh install on virtual machine) x86, Mono
Mac OS X 10.5 (PowerPC G4), Mono 2.4.3

I don't know if buttons may also be causing the problem, they are PNG with
alpha channel loaded from embedded resources.

I suppose I can prepare in the day a test project for filling a bug.

Petit Eric wrote:
> once time did you use the translation feature of winforms ?
> 2009/12/13 Stifu <stifu at free.fr>:
>> Could you please file a bug report with a reduced test case?
>> You could also try with Mono 2.6 RC1 if you haven't already, just in
>> case.
>> Natalia Portillo wrote:
>>> I have an application created using WinForms that uses the
>>> TransparencyKey
>>> value on all the forms.
>>> At first start of the application that setting is just ignored at all.
>>> I've tested on OS X's X11 (of course composite is working) and on Linux
>>> x64 under GNOME, KDE4 and XFCE (all the three say that composite is
>>> enabled, and are using them for their own transparencies)
>>> At a point of the application it just simply crashes, and then if I try
>>> to
>>> run it again, I get the window, empty, and fully black (white on Mac OS
>>> X)
>>> Any idea of what is happening here?
>> --
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> -- 
>  Cordially.
>  Small Eric Quotations of the days:
> ---------------------------------------------------------------------------
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