gtk:menu-item-use-underline (object)

item -- a gtk:menu-item widget
setting -- true if underlines in the text indicate mnemonics

Accessor of the use-underline slot of the gtk:menu-item class. The gtk:menu-item-use-underline function checks if an underline in the text indicates the next character should be used for the mnemonic accelerator key. If true, an underline in the text indicates the next character should be used for the mnemonic accelerator key.