Warning
gtk_icon_size_register has been deprecated since version 3.10 and should not be used in newly-written code. Use GtkIconTheme instead.
Registers a new icon size, along the same lines as GTK_ICON_SIZE_MENU,
etc. Returns the integer value for the size.
Warning gtk_icon_size_register has been deprecated since version 3.10 and should not be used in newly-written code. Use GtkIconTheme instead. Registers a new icon size, along the same lines as GTK_ICON_SIZE_MENU, etc. Returns the integer value for the size.