Re-open about-dialog by button,Cannot interact directly with about-dialog
// Code
#include <gtk/gtk.h>
static void
open_aboutDialog(GtkWidget *button,
gpointer user_data)
{
gtk_show_about_dialog(GTK_WINDOW(button),NULL);
}
static void
activate (GtkApplication *app,
gpointer user_data)
{
GtkWidget *button;
GtkWidget *appwin = gtk_application_window_new (app);
gtk_window_set_title(GTK_WINDOW(appwin), "");
gtk_window_set_default_size(GTK_WINDOW(appwin), 800, 700);
button = gtk_button_new_with_label("Open");
g_signal_connect_swapped(button,"clicked",G_CALLBACK(open_aboutDialog),appwin);
gtk_window_set_child(GTK_WINDOW(appwin),button);
gtk_widget_show (appwin);
}
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;
}
Step
1.run program 2.click button to open about-dialog, then close about-dialog 3.re-click button to open about-dialo again,Cannot interact directly with about-dialog