Following are the things I have followed:
# cat /usr/share/applications/one.two.desktop
[Desktop Entry]
Name=one two Application
Comment=Learning application
Exec=one_two
Icon=one.two
StartupNotify=true
Terminal=false
icon file is /usr/share/icons/one.two.png
#include <gtk/gtk.h>
GtkWidget *window = NULL;
static void activate( GtkApplication *app, gpointer user_data )
{
window = gtk_application_window_new( app );
GtkIconTheme *theme = gtk_icon_theme_get_for_display (gdk_display_get_default ());
gtk_icon_theme_add_resource_path (theme, "/usr/share/icons/" );
// icon image file is /usr/share/icons/one.two.png
gtk_window_set_default_icon_name( "one.two" );
gtk_widget_show( window );
}
int main( int argc, char **argv )
{
GtkApplication *app = gtk_application_new ("one.two", G_APPLICATION_FLAGS_NONE);
if( g_signal_connect( app, "activate", G_CALLBACK( activate ), NULL ) <= 0 )
{
fprintf( stderr, "Unable to connect\n" );
exit(1);
}
int status = g_application_run( G_APPLICATION( app ), argc, argv);
g_object_unref( app );
return status;
}
executed using
$ gcc icon.c `pkg-config --cflags --libs gtk4` -o one_two
$ ./one_two
icon is not showing up. Not sure where the error is. Can someone please help me understanding how to fix?
