Returns the visible child in a tab-layout.
capi
tab-layout-visible-child tab-layout => result
| tab-layout⇩ | 
A tab-layout. | 
| result | 
A pane. | 
The function tab-layout-visible-child returns the currently-visible pane in tab-layout.
CAPI User Guide and Reference Manual (Unix version) - 01 Dec 2021 19:32:42