How to obtain a specific property from GtkStyle?

I want to obtain the "base" property from a gtkstyle, which is a GdkColor type, but I just can manage to get it. I know I can use gtk_style_get_style_property()

void gtk_style_get_style_property  (GtkStyle *style,GType widget_type, const gchar *pr开发者_如何学运维operty_name, GValue *value);
                                                     
                            

but what am I supposed to put in "widget_type" and how a can get a gdkcolor type from "value"?

You must pass the GType of a widget class (e.g. GTK_TYPE_LABEL, GTK_TYPE_BUTTON, etc.) in widget_type.

To get a GdkColor from a GValue, call g_value_get_boxed():

GdkColor *color = (GdkColor *) g_value_get_boxed(value);