Changing a Label Presentation

[Ruben I Safir <ruben mrbrklyn com>]

Hello

I'm trying to write a program which changes a label from a callback and it's not working.

rmbackup.c

#include <stdio.h>
#include "tarlib.h"
#include "backprog.h"

int main(int argc, char **argv){
	struct s1 window1;
	gtk_init(&argc, &argv);
	window1 = screen1();
	gtk_main();
	exit(0);
}

backprog.c

struct s1 maketoggles(){
	static struct s1 handle;
	GtkWidget *button;
	GtkWidget *vbox;
	GtkWidget *label;
	
	vbox = gtk_vbox_new(TRUE, 0);
	
	label = gtk_label_new("Choose an Option");
	
	gtk_widget_show(label);
	
	gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE,3);
	
	button = gtk_toggle_button_new_with_label("Create Backup");
	gtk_box_pack_start(GTK_BOX(vbox), button, TRUE, FALSE, 0);
	gtk_widget_show(button);
	gtk_signal_connect(GTK_OBJECT(button), "clicked",
			GTK_SIGNAL_FUNC(startbackup), 
			label );

........

void startbackup( GtkWidget *widget, GtkWidget *lab){
	gint ret;
	gtk_label_set_text(GTK_LABEL(lab), "CREATING BACKUP");  <-----Not changing
	ret = createbackup();
	g_print("%d",ret);
	g_print("\n");
	gtk_label_set_text(GTK_LABEL(lab), "Choose an Option");
	
}


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