Re: NSImage problem

[Fred Kiefer]

Did you install the dev-package for that library as well? You need the 
header files plus the .lib file for GNUstep to detect the presence of 
libpng and of course you need to rerun ./configure for GNUstep gui 
(followed by make and make install.

On 02.04.2012 18:54, gusborsa wrote:
> Hi Fred, your are right, the imageUnfilteredFileTypes method returns the
> following types: tiff, tif, pnm, ppm, jpeg, jpg, icns, w32vsr. The code
> works OK with a jpeg image but I need the image in png format. I'm a c++
> programmer and i'm not sure what steps should I follow. Remember i work on
> WinXP. I downloaded the libpng setup (libpng 1.2.37) from sourceforge and I
> installed it (In the default installation directory) but the problem
> continues.
>
> Thanks,
>
>
>
>
> Fred Kiefer wrote:
> > On 15.03.2012 23:58, gusborsa wrote:
> > > Hello, I´m trying to create a NSImage object from a png type image. My
> > > code:
> > >
> > > NSImage *myImage = [[NSImage alloc] initWithContentsOfFile:
> > > @"c:/MiProyect/Resources/imagen.png"];
> > >
> > > but this method returns "nil", the description message from the myImage
> > > object returns (NULL).
> > >
> > > I Verified the path with the fileExistsAtPath (NSFileManager) method and
> > > it's OK. I'm working on WinXP.
> >
> > Most likely your version of gui was build without png support. Could you
> > please print out the value of:
> >
> > [NSImage imageUnfilteredFileTypes]
> >
> > If this array doesn't include "png", then you need to install libpng and
> > rebuild gui.