Returns the current document of a MDI interface.
capi
current-document mdi-interface => child
mdi-interface
An instance of a subclass of document-frame.
child
The current document of mdi-interface .
The generic function current-document returns the top child interface of a MDI interface.
current-document
document-frame
CAPI User Guide and Reference Manual (Macintosh version) - 3 Aug 2017