[Mono-list] GDI+ and Mono 2.0.1
Bálint Kardos
kardosbalint at gmail.com
Sun Feb 15 09:49:25 EST 2009
Hi Sebastien,
I've created the bugreport -
https://bugzilla.novell.com/show_bug.cgi?id=475844&action=View with the full
project test-case attached.
and finally i managed to test it with the latest opensuse + mono 2.2
official packages - same results as with mono 1.9 (screenshots attached).
thanks,
b.
üdvözlettel
with regards
Kardos Bálint
_______________________________________
http://skaelede.hu 10 (0xA) év a magyar weben
On Fri, Feb 13, 2009 at 20:14, Sebastien Pouliot <
sebastien.pouliot at gmail.com> wrote:
> On Fri, 2009-02-13 at 20:13 +0100, Bálint Kardos wrote:
> > Hi Sebastien,
> >
> >
> > I've installed a clear Ubuntu 8.04 version and have Mono 1.9 running.
> > Finally, it is partly working for now.
> >
> >
> > The main error was with the incomplete GDI packages on the old Fedora
> > I was using, as I thought so before.
>
> Great! I'm glad you could sort it out.
>
> > Now the program is writing text to the PNG canvas, BUT with a default
> > font, not with the custom one I've choosed.
> >
> >
> > I think now it qualifies for a Bugzilla bugreport :)
>
> Yes, that should be easy to duplicate.
>
> Thanks
> Sebastien
>
> >
> > Thanks again,
> >
> >
> > b.
> >
> >
> >
> >
> >
> > üdvözlettel
> > with regards
> >
> > Kardos Bálint
> > _______________________________________
> > http://skaelede.hu 10 (0xA) év a magyar weben
> >
> >
> > On Wed, Feb 4, 2009 at 20:02, Sebastien Pouliot
> > <sebastien.pouliot at gmail.com> wrote:
> > On Wed, 2009-02-04 at 19:27 +0100, Bálint Kardos wrote:
> > > Hi Sebastien,
> > >
> > >
> > > thanks for your reply!
> > > I only want to deploy it on the Linux server, so I'm working
> > on this
> > > part first.
> > >
> > >
> > > I found the solution, it had no rights to write to a given
> > folder.
> >
> >
> > Yep, a bit lame but this is how GDI+/SD reports such
> > permission issues.
> >
> > > It now executes, but the output file is just 192 bytes
> > long, and only
> > > has the header of the PNG stream.
> >
> >
> > My previous suggestion still applies. Once you have a small
> > EXE it will
> > be much easier to debug (and/or trace) to see what's going on.
> >
> > > The whole process is the following:
> > >
> > >
> > > 1) open a 24bit PNG file
> > > 2) add the text
> > > 3) save the file to a given directory
> > > 4) send it to the out stream
> > >
> > >
> > > Image.FromFile would throw an exception if it would not find
> > the
> > > original file,
> > > the TextWriter would throw an exception if it would not find
> > the font,
> >
> >
> > TextWriter / font ? not likely ;-)
> >
> > > so I can't find any reason why it's not working.
> >
> >
> > Try to remove step 2 (adding the text) and see if a copy of
> > the original
> > file is saved (or just an header).
> >
> > >
> > > I don't know, possibly I'm missing some required .so files?
> > > I installed everything from the mono packages, and have
> > libpng
> > > installed as well.
> >
> >
> > Possible but unlikely, since you would have hit an exception
> > (or a
> > crash).
> >
> >
> > >
> > >
> > >
> > >
> > > üdvözlettel
> > > with regards
> > >
> > > Kardos Bálint
> > > _______________________________________
> > > http://skaelede.hu 10 (0xA) év a magyar weben
> > >
> > >
> > > On Wed, Feb 4, 2009 at 19:12, Sebastien Pouliot
> > > <sebastien.pouliot at gmail.com> wrote:
> > > On Wed, 2009-02-04 at 18:55 +0100, Bálint Kardos
> > wrote:
> > > > Hi,
> > > >
> > > >
> > > > I have written a small HttpHandler which
> > automatically
> > > generates text
> > > > on the fly with a custom font, added to the
> > > > System.Drawing.Font.PrivateFontCollection.
> > > >
> > > >
> > > > with Ms.net 3.5sp1, it works fine.
> > > >
> > > >
> > > > with Mono 2.0.1,
> > > > on Vista, it dies with:
> > > >
> > > >
> > > > Stacktrace:
> > > >
> > > >
> > > > at (wrapper managed-to-native)
> > > >
> > System.Drawing.GDIPlus.GdipDeletePrivateFontCollection
> > > (intptr&)
> > > > <0x00004>
> > > > at (wrapper managed-to-native)
> > > >
> > System.Drawing.GDIPlus.GdipDeletePrivateFontCollection
> > > (intptr&)
> > > > <0xffffffff>
> > > > at
> > System.Drawing.Text.PrivateFontCollection.Dispose
> > > (bool)
> > > > [0x00015] in C:\cygwin\tmp\monobuild\build\BUILD
> > \mono-2.0.1
> > > \mcs\class
> > > > \System.Drawing\System.Drawing.Text
> > > \PrivateFontCollection.cs:80
> > > >
> > > >
> > > >
> > > >
> > > > on Linux, it dies with:
> > > >
> > > >
> > > > System.Exception: Generic Error [GDI+ status:
> > GenericError]
> > > > at System.Drawing.GDIPlus.CheckStatus (Status
> > status)
> > > [0x00000]
> > > > at System.Drawing.Image.Save (System.String
> > filename,
> > > System.Drawing.Imaging.ImageCodecInfo encoder,
> > > System.Drawing.Imaging.EncoderParameters
> > encoderParams)
> > > [0x00000]
> > > > at System.Drawing.Image.Save (System.String
> > filename,
> > > System.Drawing.Imaging.ImageFormat format) [0x00000]
> > > >
> > > > none of the which are further traceable.
> > >
> > >
> > > This is likely two different issues. I recall (it
> > was a
> > > _long_ time
> > > ago) some win32 specific behavior
> > wrt PrivateFontCollection -
> > > explaining the first case.
> > >
> > > I suspect the later error (on Linux) is due to
> > something else.
> > >
> > > > Any clues on how to further debug?
> > > > thank you,
> > >
> > >
> > > Try to create a test case outside your HTTP handler
> > (i.e. a
> > > small EXE).
> > > Then use "mono --debug app.exe" to get a bit more
> > information
> > > and fill a
> > > bug report on http://bugzilla.novell.com
> > >
> > > Thanks,
> > > Sebastien
> > >
> > >
> > >
> > >
> >
> >
> >
> >
>
>
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