ui-backend-available? ( -- ? )

Vocabulary

ui.backend

Inputs

None

Outputs

?

an object

Definition

IN: ui.backend

HOOK: ui-backend-available? ui-backend ( -- ? )

Methods

USING: cocoa.application ui.backend ui.backend.cocoa ;

M: cocoa-ui-backend ui-backend-available? running.app? ;


USING: environment kernel sequences ui.backend ui.backend.gtk2 ;

M: gtk2-ui-backend ui-backend-available?
    "DISPLAY" os-env empty? not ;


USING: kernel ui.backend ;

M: object ui-backend-available? f ;