allora stavo provando a suddividere un programma per rendere tutto un po + ordinato creandomi una funzione che i crei la finestra principale ma quando compilo mi da errore:
giordano@giordano-desktop:~$ gcc `pkg-config --cflags --libs gtk+-2.0` '/home/giordano/Documents/main.c' -o text
/home/giordano/Documents/main.c: In function ‘main’:
/home/giordano/Documents/main.c:9: error: incompatible types in assignment
ecco il codice della funzione e poi quello del main.
gui.c
codice:
#include <gtk/gtk.h>
#include "gui.h"

GtkWidget* create_gui(void){
	GtkWidget *window;
	GtkWidget *box;
	GtkWidget *textView;
	GtkWidget *sw;
	GtkWidget *eventb;
	GtkWidget *statusbar;
	GtkWidget *menubar;
	GtkWidget *file,*fileI;
	GtkWidget *label;
	
	window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

	g_signal_connect(GTK_OBJECT(window),"delete_event",G_CALLBACK(gtk_main_quit),NULL);
	g_signal_connect(G_OBJECT(window),"destroy",
			 G_CALLBACK(gtk_main_quit),NULL);
	gtk_window_set_title(GTK_WINDOW(window),"text");
	gtk_container_set_border_width(GTK_CONTAINER(window),0);
	gtk_window_set_default_size(GTK_WINDOW(window),400,400);
	gtk_widget_show (window);
	box = gtk_vbox_new(FALSE,0);
	gtk_container_add (GTK_CONTAINER (window), box);
	gtk_widget_show (box);
	
	menubar = gtk_menu_bar_new();
	gtk_box_pack_start (GTK_BOX (box), menubar, FALSE, FALSE, 0);
	gtk_widget_show(menubar);
	
	fileI = gtk_menu_item_new_with_label("File");
	gtk_widget_show (fileI);
	gtk_container_add (GTK_CONTAINER (menubar), fileI);
	

	file = gtk_menu_new ();
	gtk_menu_item_set_submenu (GTK_MENU_ITEM (fileI), file);
	
	sw = gtk_scrolled_window_new (NULL, NULL);
	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
  	gtk_widget_show (sw);
  	gtk_box_pack_start (GTK_BOX (box), sw, TRUE, TRUE, 0);
  	gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW(sw), GTK_SHADOW_IN);

	textView = gtk_text_view_new();
	gtk_widget_show (textView);
	gtk_container_add (GTK_CONTAINER (sw), textView);
	gtk_box_pack_start(GTK_BOX(box),sw,FALSE,FALSE,0);
	eventb = gtk_event_box_new ();
  	gtk_widget_show (eventb);
  	gtk_box_pack_start (GTK_BOX (box), eventb, FALSE, FALSE, 0);
	statusbar = gtk_statusbar_new();
	gtk_container_add (GTK_CONTAINER (eventb), statusbar);
	gtk_widget_show(statusbar);
	label = gtk_label_new("\t\t\t\tLn , Col");
	gtk_widget_show(label);
	gtk_statusbar_push(GTK_STATUSBAR(statusbar),gtk_statusbar_get_context_id (GTK_STATUSBAR(statusbar), ""),gtk_label_get_text(GTK_LABEL(label)));

	return window;
}
main.c
codice:
#include <gtk/gtk.h>
#include "gui.h"

int main(int argc,char* argv[]){
	GtkWidget* window;
	
	gtk_init(&argc,&argv);

	window = create_gui();
  	gtk_widget_show (window);

	gtk_main();

	return 0;
}
spero si possa risolvere