No! This is the ID: https://ibin.co/3FlPSBGuokBB.png
and this is the widget name https://ibin.co/3FlPnPaDN7Zl.png that i used in css provider. This is not the problem because in start of the program i change the label to other color to understand if css provider is working. And works, but when i tried in the middle of the code change again with this code don't works.. How can i add a Css class? How it works? I tried insert style classes in glade, but the value that i write disappear. Thanks On 16-03-2017 13:19, Emmanuele Bassi wrote: > You keep using an id in the selector, but you never show how you set > the id on the widget. I suspect you think the buildable ID you use > with GtkBuilder is also the ID used when theming — which is definitely > not the case. You will need gtk_widget_set_name(), instead. Of course, > that comes with its own set of caveats, most importantly: there's no > uniqueness of widget name enforced by GTK+ itself. > > If you want to avoid all of this, use a CSS class; you can add a class > programmatically using gtk_style_context_add_class() or you can > specify the class in the GtkBuilder XML file. > > Ciao, > Emmanuele. > > > On 16 March 2017 at 12:49, Rúben Rodrigues <ruben...@live.com.pt> wrote: >> I provide my code in previous emails. >> >> This is my code now: >> >> if(css_provider == NULL){ >> css_provider = gtk_css_provider_new(); >> >> gtk_style_context_add_provider >> (gtk_widget_get_style_context(GTK_WIDGET(gtk_builder_get_object(builder,"window_Main"))), >> GTK_STYLE_PROVIDER (css_provider), >> GTK_STYLE_PROVIDER_PRIORITY_APPLICATION); >> g_object_unref(css_provider); >> >> } >> gtk_css_provider_load_from_data (css_provider,"#label_Sensors { >> color: red; }",-1,NULL); >> >> >> On 16-03-2017 12:41, Tilo Villwock wrote: >>> Am Donnerstag, den 16.03.2017, 11:58 +0000 schrieb Rúben Rodrigues: >>>> Hi, >>>> >>>> This is what i have, and don't works... >>> The code I provided works. What GTK3 version are you using? Also nobody >>> will be able to help you if you don't show us your code. >>> >>> --Tilo >> _______________________________________________ >> 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
