If the label has been set so that it has an mnemonic key this function
returns the keyval used for the mnemonic accelerator. If there is no
mnemonic set up it returns #GDK_KEY_VoidSymbol.
Return: GDK keyval usable for accelerators, or #GDK_KEY_VoidSymbol
If the label has been set so that it has an mnemonic key this function returns the keyval used for the mnemonic accelerator. If there is no mnemonic set up it returns #GDK_KEY_VoidSymbol.
Return: GDK keyval usable for accelerators, or #GDK_KEY_VoidSymbol