[Lazarus] some FCL bugs

[Joost van der Sluis]

On Mon, 03 Mar 2008 11:42:53 +0100
Andrea Mauri <andrea.mauri.75 at gmail.com> wrote:

> Under GTK2 I still have problems.
> Lazarus svn FPC 2.2, Ubuntu.
> The TOpenGLControl is compiled and installed in the GTK2 Lazarus IDE.
> I can put a TOpenGLControl on a form but when I run the project it is 
> compiled (see compiler messages below), but the execution is
> immediately stopped, I can't see the form with the TOpenGLControl
> running. It could be a problem due to some missing Linux libraries?
> andrea

If the example runs, then the problem is in your code.


Mattias


> 
> compiler messages:
> 
> Hint: Start of reading config file /etc/fpc.cfg
> Hint: End of reading config file /etc/fpc.cfg
> Warning: You are using the obsolete switch -OG
> Free Pascal Compiler version 2.2.0 [2007/08/30] for i386
> Copyright (c) 1993-2007 by Florian Klaempfl
> Target OS: Linux for i386
> Compiling /home/giacca/lazarus_projects/tmp/project1.lpr
> Compiling unit1.pas
> Linking /home/giacca/lazarus_projects/tmp/project1
> 57 lines compiled, 14.4 sec
> 1 warning(s) issued
> 2 hint(s) issued
> Project "project1" successfully built. :)
> 
> Mattias Gaertner ha scritto:
> > On Fri, 29 Feb 2008 16:41:58 +0100
> > Andrea Mauri <andrea.mauri.75 at gmail.com> wrote:
> >
> >   
> >>> It works here under gtk2.
> >>>   
> >>>       
> >> I am not able to use TOpenGLControl on GTK2, I can place it on a
> >> form, I can compile it but it doesn't run. After pressing F9 the
> >> project is compiled successfully then launched and immediately the
> >> "Execution Stopped" message is showed up.
> >> I have also seen in the OpenGLContext unit these lines:
> >> [...]
> >>   Author: Mattias Gaertner
> >>
> >>   Abstract:
> >>     TOpenGLControl is a LCL control with an opengl context.
> >>     It works under the following platforms:
> >>       - gtk with glx    : full
> >> *      - gtk2 with glx   : started, not yet working*
> >>       - carbon with agl : full
> >>       - windows with wgl: full
> >> }                   
> >>     
> >
> > I changed this to full.
> >              
> >  
> >   
> >>> I know of a refresh problem when maximizing, but otherwise it
> >>> should work. What problems do you have?  
> >>>       
> >> When I put a TOpenGLControl on a form (windows) I obtain this:
> >>     
> >
> > What lazarus version are you using? 32 or 64 bit? What fpc version?
> > Can you try the svn version or at least the daily snapshot?
> > I didn't try the control under windows recently, so maybe some win32
> > devel broke it unknowingly. I will try to find a windows machine to
> > test.
> >
> >  
> >   
> >> And this when I run my project:
> >>
> >> I didn't see the same behaviour using GTK, using GTK it seems to
> >> work properly.
> >>     
> >
> > You need a recent lazarus 0.9.25 version to use the openglcontrol
> > under gtk2.
> >
> >
> > Mattias
> > _______________________________________________
> > Lazarus mailing list
> > Lazarus at lazarus.freepascal.org
> > http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
> >
> >   
>