Re: How to program a simple dialog?

[Eduardo M KALINOWSKI <ekalin gmail com>]

Florian Harmuth wrote:
> Hello all,
> i try to program a simple dialog without success.
>
> Here is my actual code:
> <code>
> #include <unistd.h>
> #include <stdlib.h>
> #include <gtk/gtk.h>
>
> void quick_message () {
>
>    GtkWidget *system_dialog, *label;
>
>    /* Create the widgets */
>
>    system_dialog = gtk_dialog_new ();
>    gtk_widget_set_name (system_dialog, "system_dialog");
>    gtk_window_set_title (GTK_WINDOW (system_dialog), "System Settings");
>    gtk_window_set_position (GTK_WINDOW (system_dialog), GTK_WIN_POS_CENTER);
>    gtk_window_set_modal (GTK_WINDOW (system_dialog), TRUE);
>    gtk_window_set_default_size (GTK_WINDOW (system_dialog), 500, 280);
>    gtk_window_set_resizable (GTK_WINDOW (system_dialog), FALSE);
>    gtk_window_set_type_hint (GTK_WINDOW (system_dialog),
> GDK_WINDOW_TYPE_HINT_DIALOG);
>
>    label = gtk_label_new ("");
>
>    /* Ensure that the dialog box is destroyed when the user responds. */
>
>    g_signal_connect_swapped (system_dialog,
>                              "response",
>                              G_CALLBACK (gtk_widget_destroy),
>                              system_dialog);
>
>    /* Add the label, and show everything we've added to the dialog. */
>
>    gtk_container_add (GTK_CONTAINER (GTK_DIALOG(system_dialog)->vbox),
>                       label);
>    gtk_widget_show_all (system_dialog);
> }
>
>
> int main(int argc, char *argv[])
> {
>     quick_message();
>
>     return 0;
> }
> </code>
>
> Here is my compile line: "cc -o tc_system_new main.c `pkg-config --cflags
> --libs gtk+-2.0 gthread-2.0 glib-2.0`"
>
> And here is my error output:
>
> [snip]
>
> Any suggestions?
>
>   
Yes. Read the GTK+ Tutorial at http://gtk.org/tutorial/ . This way you 
would know that  you must call gtk_init() at the start of the program 
(that's the cause for the messages), and that you need a call to 
gtk_main() to do anything useful (in this case, displaying the window).


--
I must have slipped a disk -- my pack hurts!

Eduardo M KALINOWSKI
ekalin gmail com
http://move.to/hpkb