Determines whether the system clipboard contains an object of the specified kind.
capi
clipboard-empty self &optional format => result, owner
| self⇩ |
A displayed CAPI pane or interface. |
| format⇩ |
A keyword. |
| result | t or nil. |
| owner⇩ |
One of :lisp, t or nil. |
The function clipboard-empty returns nil if there is an object of the kind indicated by format on the clipboard associated with self, or t otherwise.
The second return value owner is :lisp when the clipboard is owned by LispWorks, t when it is owned by some other application and nil when it is empty.
format controls what kind of object is checked. The allowed values of format are as described for clipboard.
CAPI User Guide and Reference Manual (Macintosh version) - 18 Feb 2025 15:33:09