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<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" xmlns:xi="http://www.w3.org/2001/XInclude" type="guide" style="task" id="dialog.c" xml:lang="sv">
<info>
<title type="text">Dialog (C)</title>
<link type="guide" xref="c#windows"/>
<link type="seealso" xref="label.c"/>
<link type="seealso" xref="button.c"/>
<revision version="0.1" date="2012-06-14" status="draft"/>
<credit type="author copyright">
<name>Monica Kochofar</name>
<email its:translate="no">monicakochofar@gmail.com</email>
<years>2012</years>
</credit>
<desc>Ett poppuppfönster</desc>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>Sebastian Rasmussen</mal:name>
<mal:email>sebras@gmail.com</mal:email>
<mal:years>2019</mal:years>
</mal:credit>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>Anders Jonsson</mal:name>
<mal:email>anders.jonsson@norsjovallen.se</mal:email>
<mal:years>2021</mal:years>
</mal:credit>
</info>
<title>Dialog</title>
<media type="image" mime="image/png" src="media/dialog.png"/>
<p>Ett dialogfönster som poppar upp då en knapp trycks ned.</p>
<code mime="text/x-csrc" style="numbered">
#include <gtk/gtk.h>
/*Callback function in which reacts to the "response" signal. Be sure to place
it before the function it is called in*/
static void
on_response (GtkDialog *dialog,
gint response_id,
gpointer user_data)
{
/*For demonstration purposes, this will show the int value
of the response type*/
g_print ("response is %d\n", response_id);
/*This will cause the dialog to be destroyed*/
gtk_widget_destroy (GTK_WIDGET (dialog));
}
/*Callback function in which reacts to the "clicked" signal*/
static void
show_dialog (GtkButton *button,
gpointer user_data)
{
GtkWindow *window = user_data;
GtkWidget *dialog;
GtkWidget *content_area;
GtkWidget *label;
gint response_id;
/*Create the dialog window. Modal windows prevent interaction with other
windows in the same application*/
dialog = gtk_dialog_new_with_buttons ("A Gtk+ Dialog",
window,
GTK_DIALOG_MODAL,
GTK_STOCK_OK,
GTK_RESPONSE_OK,
NULL);
/*Create a label and attach it to the content area of the dialog*/
content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
label = gtk_label_new ("This demonstrates a dialog with a label");
gtk_container_add (GTK_CONTAINER (content_area), label);
/*The main purpose of this is to show dialog's child widget, label*/
gtk_widget_show_all (dialog);
/*Connecting the "response" signal from the user to the associated
callback function*/
g_signal_connect (GTK_DIALOG (dialog),
"response",
G_CALLBACK (on_response),
NULL);
}
static void
activate (GtkApplication *app,
gpointer user_data)
{
GtkWidget *window;
GtkWidget *button;
/*Create a window with a title and a default size*/
window = gtk_application_window_new (app);
gtk_window_set_title (GTK_WINDOW (window), "GNOME Button");
gtk_window_set_default_size (GTK_WINDOW (window), 250, 50);
/*Create a button with a label, and add it to the window*/
button = gtk_button_new_with_label ("Click Me");
gtk_container_add (GTK_CONTAINER (window), button);
/*Connecting the clicked signal to the callback*/
g_signal_connect (GTK_BUTTON (button),
"clicked",
G_CALLBACK (show_dialog),
GTK_WINDOW (window));
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;
}
</code>
<p>I detta exempel använde vi följande:</p>
<list>
<item><p><link href="http://developer.gnome.org/gtk3/3.4/GtkApplication.html">GtkApplication</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/3.4/GtkWindow.html">GtkWindow</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/stable/GtkDialog.html">GtkDialog</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/stable/GtkLabel.html">GtkLabel</link></p></item>
</list>
</page>
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