Returns the selected text in a display-pane.
capi
display-pane-selected-text display-pane => result
| display-pane⇩ | 
An instance of display-pane or a subclass. | 
| result | 
A string or  nil. | 
The function display-pane-selected-text returns the selected text in display-pane, or nil if there is no selection.
CAPI User Guide and Reference Manual (Unix version) - 01 Dec 2021 19:32:42