Introduction
This example produces a simple GTK combo pull-down list. It allows you to add default values to the list. In addition, the user is allowed to enter his/her own value.
Screenshot
Source Code
/*
*File name: hbox.c
*/#include
#include/*– This function allows the program to exit properly when the window is closed –*/
gint destroyapp (GtkWidget *widget, gpointer gdata)
{
g_print (“Quitting…\n”);
gtk_main_quit();
return (FALSE);
}
int main (int argc, char *argv[])
{/*– Declare the GTK Widgets used in the program –*/
GtkWidget *window;
GtkWidget *combo;
GList *items = NULL;/*–Initialize GTK–*/
gtk_init (&argc, &argv);/*–Create the new window–*/
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);/*–Connect the window to the destroyapp function –*/
gtk_signal_connect(GTK_OBJECT(window), “delete_event”, GTK_SIGNAL_FUNC(destroyapp), NULL);/*– Items to be added to combo widget–*/
items = g_list_append (items, “Banana”);
items = g_list_append (items, “Orange”);
items = g_list_append (items, “Peach”);
items = g_list_append (items, “Strawberry”);/*–Create a new combo widget –*/
combo = gtk_combo_new();
/*– Set items in the popup list–*/
gtk_combo_set_popdown_strings (GTK_COMBO (combo), items);/*— Add combo widget to window-*/
gtk_container_add(GTK_CONTAINER (window), combo);/*– Add a border to the window to give the button a little room –*/
gtk_container_border_width (GTK_CONTAINER (window), 15);/*– Display the widgets –*/
gtk_widget_show(combo);
gtk_widget_show(window);/*– Start the GTK event loop–*/
gtk_main();/*–Return 0 if exit is successful–*/
return 0;}
Compile the Source Code
gcc -Wall -g combo.c -o combo `gtk-config –cflags` `gtk-config –libs`
Execute the Program
./combo
