Thanks for the information, but this is just one temporary dialog
brought up by a menu item from the main window of the program. It looks
like using Fl::wait() is doing the trick so I'll keep using that I believe.
Thanks,
Moses
On 01/25/2013 11:31 AM, Greg Ercolano wrote:
> On 01/25/13 08:46, Moses McKnight wrote:
>> On 01/25/2013 09:13 AM, Moses McKnight wrote:
>>> Ok, I think I figured it out. The way I create the window is like this
>>> in a menu callback function:
>>>
>>> void gen_license_cb(Fl_Widget *w, void *ptr)
>>> {
>>> licgen generator;
>>> generator.make_window();
>>> generator.hub_id_input->type(FL_INT_INPUT);
>>> generator.hub_id_input->precision(0);
>>> generator.hub_id_input->value(hub_id);
>>> generator.window->show();
>>> }
>>>
>>> I think the object is being deleted after the show() even though the
>>> window is still there and active.
>>>
>>> What is the best way to keep the object around until the window is closed?
>>
>> I looked at the code in fl_ask.cxx and added the following after
>> window->show()
>>
>> while (generator.window->shown()) Fl::wait();
>> That worked. If anyone has a better way to do this please let me know.
>
> If this is the only window in your application,
> calling Fl::run() is the better thing.
>
> I took your two files and merged them into one, just to make it
> easy to compile (and post here). See the *** lines for my changes.
>
> I added a main() function so that the code compiles and runs
> as a standalone app, and I added the method called
> licgen::generate_license() which just runs:
> info_output->value("Testing");
>
> Seems to work fine, didn't crash on close and the Testing message
> gets created OK.
>
> Perhaps the problem was just in how you invoke the class..
> ie. what I put in main() below.
>
> // generated by Fast Light User Interface Designer (fluid) version 1.0302
>
> #ifndef licensegen_h
> #define licensegen_h
> #include <FL/Fl.H>
> #include <FL/Fl_Double_Window.H>
> #include <FL/Fl_Value_Input.H>
> #include <FL/Fl_Output.H>
> #include <FL/Fl_Button.H>
>
> class licgen {
> public:
> void generate_license();
> Fl_Double_Window* make_window();
> Fl_Double_Window *window;
> Fl_Value_Input *hub_id_input;
> Fl_Output *info_output;
> private:
> inline void cb_Generate_i(Fl_Button*, void*);
> static void cb_Generate(Fl_Button*, void*);
> inline void cb_Close_i(Fl_Button*, void*);
> static void cb_Close(Fl_Button*, void*);
> };
> #endif
>
> // *** COMMENTED FOLLOWING TWO LINES OUT TO GET CODE ALL IN ONE FILE ***
> // generated by Fast Light User Interface Designer (fluid) version 1.0302
> // #include "licensegen.h"
>
>
> void licgen::cb_Generate_i(Fl_Button*, void*) {
> generate_license();
> }
> void licgen::cb_Generate(Fl_Button* o, void* v) {
> ((licgen*)(o->parent()->user_data()))->cb_Generate_i(o,v);
> }
>
> void licgen::cb_Close_i(Fl_Button*, void*) {
> window->hide();
> }
> void licgen::cb_Close(Fl_Button* o, void* v) {
> ((licgen*)(o->parent()->user_data()))->cb_Close_i(o,v);
> }
>
> Fl_Double_Window* licgen::make_window() {
> { window = new Fl_Double_Window(435, 130, "License Generator");
> window->labelsize(12);
> window->user_data((void*)(this));
> { hub_id_input = new Fl_Value_Input(5, 30, 275, 25, "ID#");
> hub_id_input->labelsize(12);
> hub_id_input->textsize(12);
> hub_id_input->align(Fl_Align(FL_ALIGN_TOP_LEFT));
> } // Fl_Value_Input* hub_id_input
> { info_output = new Fl_Output(5, 63, 420, 25);
> info_output->color(FL_BACKGROUND_COLOR);
> info_output->labelsize(12);
> info_output->textsize(12);
> info_output->align(Fl_Align(FL_ALIGN_TOP_LEFT));
> } // Fl_Output* info_output
> { Fl_Button* o = new Fl_Button(290, 30, 135, 25, "Generate License...");
> o->labelsize(12);
> o->callback((Fl_Callback*)cb_Generate);
> } // Fl_Button* o
> { Fl_Button* o = new Fl_Button(180, 98, 80, 25, "Close");
> o->labelsize(12);
> o->callback((Fl_Callback*)cb_Close);
> } // Fl_Button* o
> window->end();
> } // Fl_Double_Window* window
> return window;
> }
>
> // *** ADDED FOLLOWING THREE LINES AS PER YOUR EMAIL ***
> void licgen::generate_license() {
> info_output->value("Testing");
> }
>
> // *** ADDED A MAIN FUNCTION TO MAKE USE OF YOUR CLASS ***
> int main() {
> licgen lic;
> Fl_Window *win = lic.make_window();
> win->show();
> return Fl::run();
> }
>
>
>
> _______________________________________________
> fltk mailing list
> [email protected]
> http://lists.easysw.com/mailman/listinfo/fltk
>
_______________________________________________
fltk mailing list
[email protected]
http://lists.easysw.com/mailman/listinfo/fltk
