Gtk+ problem with multithreading

[patkhor <indyz-fluke hotmail com>]

Hi,

This is the first time I write GUI application using Gtk+ and I have some
problems
with multithreading.

What I want to achieve is that when the user clicks on OK button, the
program will call
callback_func which creates some number of threads (in this case, I use 5).
And each threads then start executing thread_func.

The problem I have is, when I click on OK button, the main window freezes
(display "Not responding"
message on Windows machine) until all the threads finish its execution.

The following is part of the code:

struct thread_data_t {
        int member1;
        int member2;
};

struct thread_data_t thread_data[5];

void *thread_func(void *threadarg) {
        struct thread_data_t *thread_data;

        thread_data = (struct thread_data_t *) threadarg;

        .........................
        .........................

        return NULL;
}

void callback_func(GtkWidget *button, gpointer data) {
        GThread *threads[5];
        int i;

        ...................
        ...................

        for (i = 0; i < 5; i++)
                threads[i] = g_thread_create((GThreadFunc)thread_func, (void
*)(&thread_data[i]), TRUE, &err[i]);

        for (i = 0; i < 5; i++)
                g_thread_join(threads[i]);

        ...................
        ...................
}

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

        g_thread_init(NULL);
        gdk_threads_init();

        gtk_init(&argc, &argv);

        ..................
        ..................

        g_signal_connect(GTK_OBJECT(ok_button), "clicked",
GTK_SIGNAL_FUNC(callback_func), (gpointer *)&arg);

        ..................
        ..................

        gdk_threads_enter();
        gtk_main();
        gdk_threads_leave();

        return 0;
}

Any help would be highly appreciated,
Pat

PS. Sorry for my bad English. It's my second language.
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