#include <GUIConstantsEx.au3>
#include <GuiImageList.au3>
#include <GuiTab.au3>
#include <MsgBoxConstants.au3>
#include <WinAPIGdi.au3>

Example()

Func Example()
        ; Create GUI
        Local $hGUI = GUICreate("Tab Get/Set Item Image (v" & @AutoItVersion & ")", 400, 300)
        Local $idTab = GUICtrlCreateTab(2, 2, 396, 296)
        GUISetState(@SW_SHOW)

        ; Create images
        Local $hImage = _GUIImageList_Create()
        _GUIImageList_Add($hImage, _WinAPI_CreateSolidBitmap($hGUI, 0xFF0000, 16, 16))
        _GUIImageList_Add($hImage, _WinAPI_CreateSolidBitmap($hGUI, 0x00FF00, 16, 16))
        _GUIImageList_Add($hImage, _WinAPI_CreateSolidBitmap($hGUI, 0x0000FF, 16, 16))
        _GUICtrlTab_SetImageList($idTab, $hImage)

        ; Add tabs
        _GUICtrlTab_InsertItem($idTab, 0, "Tab 0")
        _GUICtrlTab_InsertItem($idTab, 1, "Tab 1")
        _GUICtrlTab_InsertItem($idTab, 2, "Tab 2")

        ; Get/Set tab 1 image
        _GUICtrlTab_SetItemImage($idTab, 1, 1)
        MsgBox($MB_SYSTEMMODAL, "Information", "Tab 1 image index: " & _GUICtrlTab_GetItemImage($idTab, 1))

        ; Loop until the user exits.
        Do
        Until GUIGetMsg() = $GUI_EVENT_CLOSE
        GUIDelete()
EndFunc   ;==>Example