To load jpeg or bitmap files using fltk & opengl

ranjita · #1 05-May-2008, 04:01

i am using gentoo flavour of linux and need to load jpeg fiile as textures using fltk.(preferably on a gl-window)

Have tried this simple example:

CPP / C++ / C Code:

#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Shared_Image.H>
#include <FL/Fl_JPEG_Image.H>
#include <FL/Fl_Box.H>

int main() {
    fl_register_images();                       // initialize image lib
    Fl_Window     win(720,486);                 // make a window
    Fl_Box        box(10,10,720-20,486-20);     // widget that will contain image
    Fl_JPEG_Image jpg("/var/tmp/foo.jpg");      // load jpeg image into ram
    box.image(jpg);                             // attach jpg image to box
    win.show();
    return(Fl::run());
}

i downloaded the FL_JPEG_Image.H as the header file was not there on my pc i also found that this file in turn required Fl_Image.H file so downloaded that too.

i get the following error messages for the Fl_Image.H file:

'Fl_Widget' has a previous declaration here
and class FL_EXPORT Fl_Image ---->invalid function declaration

have included the fltk images also.
wondering what modifications should header files require?i am using fltk-2.0.x-r5750

any help on this one?

ranjita · #2 05-May-2008, 04:20

forgot to mention the other error message previous to the ones stated before :

for class Fl_Widget;

i get the error as using typedef-name 'Fl_Widget' after 'class'

cable_guy_67 · #3 05-May-2008, 04:26

Hello and Welcome to GIDForums™ FLTK Forum ranjita.

You are using 1.1 code with 2.0. I use 1.3 myself (which is the future of 1.1) so can't give you an example off the top of my head.

If someone else doesn't help out I'll see what I can do later tonight.

Mark

ranjita · #4 06-May-2008, 07:27

counting on you:-)

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To load jpeg or bitmap files using fltk & opengl

Re: To load jpeg or bitmap files using fltk & opengl

Re: To load jpeg or bitmap files using fltk & opengl

Re: To load jpeg or bitmap files using fltk & opengl