# Entry (C)

Monica Kochofar
monicakochofar@gmail.com 2012
A single line text entry field
Anders Jonsson
anders.jonsson@norsjovallen.se 2018

# Entry

This application greets you in the terminal.

#include <gtk/gtk.h>

/*This is the callback function. It is a handler function which reacts to the signal. In this case, it will grab the text input from the entry box and print out a line to the user.*/ static void on_activate (GtkEntry *entry, gpointer user_data) { const char *name; name = gtk_entry_get_text (entry);

g_print ("\nHello %s!\n\n", name); }

static void activate (GtkApplication *app, gpointer user_data) { GtkWidget *window; GtkWidget *entry_box;

/*Create a window with a title, a default size, and a set border width*/ window = gtk_application_window_new (app); gtk_window_set_title (GTK_WINDOW (window), "What is your name?"); gtk_window_set_default_size (GTK_WINDOW (window), 300, 100); gtk_container_set_border_width (GTK_CONTAINER (window), 10);

/*Create a new entry box, and add it to the window*/ entry_box = gtk_entry_new (); gtk_container_add (GTK_CONTAINER (window), entry_box);

/*Connecting the activate signal to the callback*/ g_signal_connect (GTK_ENTRY (entry_box), "activate", G_CALLBACK (on_activate), NULL);

gtk_widget_show_all (window); }

int main (int argc, char **argv) { GtkApplication *app; int status;

app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE); g_signal_connect (app, "activate", G_CALLBACK (activate), NULL); status = g_application_run (G_APPLICATION (app), argc, argv); g_object_unref (app);

return status; }

In this sample we used the following:

GtkApplication

GtkWindow

GtkEntry