Obtains the pixel size of a semantic icon size size:
#GTK_ICON_SIZE_MENU, #GTK_ICON_SIZE_BUTTON, etc. This function
isn’t normally needed, gtk_icon_theme_load_icon() is the usual
way to get an icon for rendering, then just look at the size of
the rendered pixbuf. The rendered pixbuf may not even correspond to
the width/height returned by gtk_icon_size_lookup(), because themes
are free to render the pixbuf however they like, including changing
the usual size.
Obtains the pixel size of a semantic icon size
size: #GTK_ICON_SIZE_MENU, #GTK_ICON_SIZE_BUTTON, etc. This function isn’t normally needed,gtk_icon_theme_load_icon()is the usual way to get an icon for rendering, then just look at the size of the rendered pixbuf. The rendered pixbuf may not even correspond to the width/height returned bygtk_icon_size_lookup(), because themes are free to render the pixbuf however they like, including changing the usual size.