_CBtabChange

Reflex called when the "active tab is changed" occurs by the user.

Prototype :

fun [ObjTab fun [ObjTab u0 I] u1 u0] ObjTab

ObjTab : a tabs control object
fun [ObjTab u0 I] u1 : the callback. Can be nil. The supplemental argument is the number of the new active tab (the first tab is always 0).
u0 : an "user parameter", at your convenience.

Return : ObjTab the same ObjTab object if success, NIL otherwise

See also :

_SETtabSelected

Example :

Note :