GTK+ Win32 Application Wont Close

axpen · **Joined:** Mon Aug 27, 2007 10:43 pm **Posts:** 14

Ok after spending most of a day actually getting GTK to compile on my windows box I ran into a snafu. Basically when I run my application it looks and acts like normal, however when I close it, the window does close, but the program stays in memory. By this I mean I have the task manager open and run my program base.exe (from the OFFICIAL GTK+ tutorial) and when I close the window the base.exe stays in memory, indefinitely. Does anyone know what would cause this?

My environment is that of MinGW and MSYS with Tor Lillqvist GTK Win32 libs (sorry no link, first post). I proceed to compile the way the tutorial tells me to with the following makefile (i've tried hand coded too):

Code:

CC = /mingw/bin/gcc
PKGFLAGS = `pkg-config --cflags --libs gtk+-2.0`
WIN = -mwindows -mno-cygwin
CFLAGS = -Wall -O2 $(WIN)
SRC = base.c
LIBS = 
EXE = base.exe

.PHONY : clean strip
all: $(EXE)

$(EXE) :
   $(CC)  -o $(EXE) $(SRC) $(CFLAGS) $(PKGFLAGS)

clean:
   rm -f $(SRC:.c=.o)

strip:
   strip $(EXE)

My Source is as follows:

Code:

#include <gtk/gtk.h>

int main( int argc, char **argv ) {
    GtkWidget *window;

    gtk_init (&argc, &argv);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_widget_show (window);

    gtk_main ();

    return 0;
}

So again, any help would be very much appriciated,
--Alex

deusvede · **Posted:** Tue Aug 28, 2007 5:54 am

You have to link the 'destroy' signal that is emitted when you click on the close button with gtk_main_quit(), so the GTK+ main loop ends. Your code will look as follows:

Code:

#include <gtk/gtk.h>

int main( int argc, char **argv ) {
    GtkWidget *window;

    gtk_init (&argc, &argv);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    g_signal_connect (G_OBJECT (window), "destroy", G_CALLBACK (destroy), NULL);
    gtk_widget_show (window);

    gtk_main ();

    return 0;
}

static void destroy (GtkWidget *window, gpointer data)
{
  gtk_main_quit ();
}

axpen · **Joined:** Mon Aug 27, 2007 10:43 pm **Posts:** 14

Thank you, I realized this after reading the next step, but i'm one of those people who don't like to move on without understanding and making a previous lesson work. Thank you very much it works perfectly now :D

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