All Manuals > CAPI User Guide and Reference Manual > 21 CAPI Reference Entries

selection-empty Function

Summary

Determines whether there is a primary selection of a particular kind.

Package

capi

Signature

selection-empty self &optional format => result

Arguments
self
A displayed CAPI pane or interface.
format
A keyword.
Values
result
t or nil.
Description

The function selection-empty returns nil if there is a primary selection of the kind indicated by format associated with self, or t if there is no such selection.

format controls what kind of object is checked. The following values of format are recognized:

:string
The object is a string. This is the default value.
:image
The object is of type image, converted from whatever format the platform supports.
:value
The object is the Lisp value.
See also

image
selection
18.6 Clipboard


CAPI User Guide and Reference Manual (Macintosh version) - 01 Dec 2021 19:31:27