define-g-flags - CL-Gtk2

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4.13.4 define-g-flags

— Macro: define-g-flags

     (define-g-flags g-name name (&key (export t) type-initializer) &body value*)
     
     value ::= :keyword
     value ::= (:keyword integer)

g-name: A string naming the GFlags type
name: A symbol naming the CFFI flags type
export: A boolean indicating whether to export name
type-initializer: A string naming the foreign type initializer function. Usually named flags_get_type.

Macro that defines CFFI bitfield, registers it with GValue, and calls the type initializer.

Example:

     (define-g-flags "GtkAttachOptions" attach-options
       (:export t :type-initializer "gtk_attach_options_get_type")
       (:expand 1) (:shrink 2) (:fill 4))
     
     (define-g-flags "GtkButtonAction" button-action
       (:export t :type-initializer "gtk_button_action_get_type")
       :ignored :selects :drags :expands)