Finds the child with the input focus.
capi
pane-descendant-child-with-focus pane => result
| pane⇩ | 
A pane or layout. | 
| result | 
A pane or  nil. | 
The function pane-descendant-child-with-focus attempts to find the pane inside pane that currently has the input focus, and returns this pane if successful.
pane-descendant-child-with-focus may return nil if it does not find a pane with the focus.
CAPI User Guide and Reference Manual (Unix version) - 01 Dec 2021 19:32:42