Le dimanche 25 septembre 2005 à 16:17 +0000, jalkadir@xxxxxxxxxx a
écrit :
> I tried to provide as little code as possible, but to make what my
> intentions are clearer I had to add quite a bit, please bear with me…
>
> This program runs, but when click on any button, with the exception of the
> “Exit” button, I get a segmentation fault error. I really don’t know why,
> but what I want to do is display a message-box with some data when the
> user presses any of the buttons, aside from the “Exit” button.
>
> Can anyone help?
>
>
> TIA
>
> -- messae.hpp --
> #include <string>
> #include <iostream>
> #include <gtk/gtk.h>
> #ifndef GTK_MESSAGE_HPP
> #define GTK_MESSAGE_HPP
> typedef struct{
> gchar* str;
> GtkWidget* obj;
> }DATA;
> void GeneralMsg(GtkButton* button, gpointer d);
>
> #endif
> -- end of file --
>
> -- message.cpp --
> #ifndef GTK_MESSAGE_HPP
> #include "Message.hpp"
> #endif
> void GeneralMsg(GtkButton* button, gpointer p) {
> DATA* d;
> reinterpret_cast<DATA*>(p);
May be this should be:
d = reinterpret_cast<DATA*>(p);
> GtkWidget* label;
> GtkWidget* dialog;
> try {
> dialog = new GtkWidget;
> label = new GtkWidget;
> d = new DATA;
You allocate data, but do not fill it.
> } catch(std::bad_alloc& e) {
> std::cout << e.what() << std::endl;
> }
>
> dialog = gtk_message_dialog_new(
> reinterpret_cast<GtkWindow*>(d->obj), //Parent
d->obj has not been initialized !
> static_cast<GtkDialogFlags>(
> GTK_DIALOG_MODAL |
> GTK_DIALOG_DESTROY_WITH_PARENT),//Flags
> reinterpret_cast<GtkMessageType>(
> GTK_MESSAGE_WARNING), // Message type
> reinterpret_cast<GtkButtonsType>(
> GTK_BUTTONS_OK), //Button type
> d->str); //Message format
d->str not initialized either.
>
> // Destroy the dialog when the user responds to it (e.g. clicks a button)
> gtk_dialog_run (GTK_DIALOG (dialog));
> gtk_widget_destroy (dialog);
> delete d;
> delete dialog;
> delete label;
> }
>
> -- eof --
>
> --- main.hpp ---
> //Declare the objects
> GtkWidget* MainMenueWin;
> GtkWidget* btnCreateAccount;
> .....
>
> DATA* data;
>
> void Quit(GtkButton* , gpointer);
> gboolean SystemQuit(GtkWidget*, GdkEvent*, gpointer);
>
> //Callbacks
> void Quit(GtkButton* was_clicked, gpointer user_data){
> gtk_main_quit();
> }
> gboolean SystemQuit(GtkWidget* widget, GdkEvent* event, gpointer user_data){
> gtk_widget_destroy(widget);
> gtk_main_quit();
> return(TRUE);
> }
> #endif
> -- end of main.hpp --
>
>
> --- main.cpp ---
> #include <gtk/gtk.h>
> #include <glib-object.h>
> #include <string>
> #include <iostream>
>
> #ifndef GTK_MESSAGE_HPP
> #include "Message.hpp"
> #endif
> #include "main.hpp"
>
> int main(int argc, char *argv[]){
> try{data = new DATA;}
> catch(std::bad_alloc& e){std::cout << e.what() << std::endl;}
> //Assign data to the object passased to the callback function
> data->str = g_strdup("Under Comstruction ... I am very sorry, but this \
> feature has not been implemented yet. Please check \
> my email me for any new updates on this program \
> El-Mago@xxxxxxxxxxx");
> data->obj = MainMenueWin;
>
> // 1. Initialize the environment
> gtk_set_locale ();
> gtk_init(&argc, &argv);
> //-liconv -liconv
> // 2. Create Widgets
> MainMenueWin = gtk_window_new(GTK_WINDOW_TOPLEVEL);
> VBx = gtk_vbox_new(FALSE,10);
> Label = gtk_label_new("Jaime");
> Separator = gtk_hseparator_new();
> btnCreateAccount = gtk_button_new_with_label("Create");
> ...
> btn5 = gtk_button_new_with_label("Unknown");
> btnExit = gtk_button_new_with_label("Exit");
>
> // 3. Set attributs
> gtk_window_set_title(GTK_WINDOW(MainMenueWin), "Jaime");
> gtk_window_set_policy(GTK_WINDOW(MainMenueWin), //which_window
> FALSE, // allow_shrink
> FALSE, // allow_grow
> FALSE); // auto_shrink
>
> gtk_container_set_border_width(GTK_CONTAINER(MainMenueWin),15);
> gtk_widget_set_name(MainMenueWin,"Gtk++ One, Dos, Tres");
> gtk_widget_set_name(VBx,"vertical box");
> gtk_widget_set_name(Label,"Label");
> gtk_widget_set_name(Separator, "Separator");
>
> // 4. Register CallBacks
> // These three callback fun' are only to exit the application
> g_signal_connect( GTK_OBJECT(btnExit), "clicked",
> G_CALLBACK(Quit), NULL);
> g_signal_connect( GTK_OBJECT(MainMenueWin), "delete-event",
> GTK_SIGNAL_FUNC(SystemQuit), NULL);
> g_signal_connect(GTK_OBJECT(MainMenueWin), "destroy",
> G_CALLBACK(SystemQuit), NULL);
>
>
> g_signal_connect(GTK_OBJECT(btnCreateAccount),
> "clicked",
> G_CALLBACK(GeneralMsg),
> reinterpret_cast<gpointer>(&data));
>
>
> return 0;
> }
>
>
> _______________________________________________
>
> gtk-list@xxxxxxxxx
> http://mail.gnome.org/mailman/listinfo/gtk-list
>
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