VISIBLE
Shows or hides the element.
Value
"YES" (visible), "NO" (hidden).
Default: "YES"
Note
Returns NULL if the element has not yet been mapped.
Affects
All except IupItem and IupSeparator.
Shows or hides the element.
"YES" (visible), "NO" (hidden).
Default: "YES"
Returns NULL if the element has not yet been mapped.
All except IupItem and IupSeparator.