[fltk.general] don't acces widge in the class..

[Diego Verzoletto]

Hi all,

I'm new in the FLTK and C++.
my problem is  do not acces a widget in the class.
Any idea ?
Thanks !

My error compiler
g++ -O2 -Wall -Wno-deprecated -c boton.cxx -o boton.o
boton.cxx: In static member function ‘static void test::callback(Fl_Button*, 
void*)’:
boton.cxx:18: error: invalid use of member ‘test::win’ in static member 
function
boton.cxx:56: error: from this location


My code

#include <iostream>
#include <cstdlib>
#include <stdio.h>

#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Widget.H>
#include <FL/Fl_Output.H>
#include <FL/Fl_Input.H>

using namespace std;

class test {

    Fl_Window *win;
    Fl_Button *Boton;
    Fl_Button *BA;

public:

    test( const char *name);
   ~test();

private :
   static void callback( Fl_Button* o, void *datos );
};


test::test( const char *name)
{
    win = new Fl_Window( 640,480, name  );
    win->resizable(win);
    win->begin();
                {
                        Boton = new Fl_Button( 5, 5, 140, 30, "Click" );
                        Boton->callback( (Fl_Callback*) &callback  );
                }
    win->end(); // cierra la ventana, no mas widgets
    win->show();

}

test::~test(  )
{
    printf("Destroy object \n");
}

void test::callback( Fl_Button* o, void *datos )
{
      win->label("the new label of window ! ");
}

int main(int argc, char **argv) {

    test *t;
          t = new test("THE THEST");
    return Fl::run();
}


_______________________________________________
fltk mailing list
fltk@easysw.com
http://lists.easysw.com/mailman/listinfo/fltk