The function
set-clipboard
sets the contents of the system clipboard to be the text of
string
.
In Windows applications (including LispWorks in Windows emulation mode), the contents of the system clipboard is usually accessed by the user with the Ctrl+V gesture.
The X clipboard can be accessed by running the program xclipboard or the Emacs function x-get-clipboard. The most likely explanation for apparent inconsistencies after
set-clipboard
is that the pasting application doesn't use the X clipboard.