Activates a tab by its index
#include <GuiTab.au3>
_GUICtrlTab_ActivateTab ( $hWnd, $iIndex )
| $hWnd | Control ID/Handle to the control |
| $iIndex | Specifies the 0-based index of the item |
| Success: | the index of the previously selected tab. |
| Failure: | -1. |