On Fri, Oct 20, 2017 at 1:18 PM, Lokesh Chakka <lvenkatakumarcha...@gmail.com> wrote: > Dear Felipe, > > Thanks for the information. > Is it possible to login with my credentials and execute as sudo ./a.out. > > Can u help me how to make it work ?
Running GUI applications as root is hardly discouraged. What you should be going for is to develop an application which runs as a normal user and uses PolicyKit[0] to gain administrator privileges whenever is necessary. [0] https://www.freedesktop.org/software/polkit/docs/latest/polkit.8.html > > > > > Thanks & Regards > -- > Lokesh Chakka, > Mobile: 9731023458 > > On Fri, Oct 20, 2017 at 4:43 PM, Felipe Borges <felipe10bor...@gmail.com> > wrote: >> >> On Fri, Oct 20, 2017 at 1:01 PM, Lokesh Chakka >> <lvenkatakumarcha...@gmail.com> wrote: >> > Hello, >> > >> > I am using simple program >> > >> > #include <gtk/gtk.h> >> > >> > int main(int argc, char *argv[]) >> > { >> > GtkWidget *window; >> > gtk_init(NULL, NULL); >> > window = gtk_window_new(GTK_WINDOW_TOPLEVEL); >> > gtk_widget_show(window); >> > g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), >> > NULL); >> > gtk_main(); >> > return 0; >> > } >> > >> > I compiled it using gcc simple.c `pkg-config --cflags gtk+-3.0 --libs` >> > if I do ./a.out, GUI is showing up. >> > >> > but if I do "sudo ./a.out", I am seeing the following error : >> > >> > ================================================ >> > $ sudo ./a.out >> > No protocol specified >> > Unable to init server: Could not connect: Connection refused >> > >> > (a.out:7961): Gtk-WARNING **: cannot open display: :0 >> > ================================================ >> > >> > As my application back end needs root privileges, I need to open the GUI >> > using sudo only. >> > Can some one help in fixing this issue ? >> > >> > The same code was working fine in Ubuntu 17.04. But I am facing this >> > issue >> > after upgrading to Ubuntu 17.10. >> >> Ubuntu 17.10 has switched to the Wayland display server, which is >> designed to fix the security issues existent in X. >> >> Wayland only allows the user who started the X server to connect clients >> to it. >> >> For more info, see https://bugzilla.redhat.com/1266771 >> >> > >> > Thanks >> > -- >> > Lokesh Chakka, >> > Mobile: 9731023458 >> > _______________________________________________ >> > gtk-app-devel-list mailing list >> > gtk-app-devel-list@gnome.org >> > https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list > > _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
