Sets group information
#include <GuiListView.au3>
_GUICtrlListView_SetGroupInfo ( $hWnd, $iGroupID, $sHeader [, $iAlign = 0 [, $iState = $LVGS_NORMAL]] )
| $hWnd | Control ID/Handle to the control | 
| $iGroupID | ID of the group | 
| $sHeader | Header text | 
| $iAlign | [optional] Alignment of the header text for the group: 0 - Left 1 - Center 2 - Right  | 
| $iState | [optional] Windows Vista or later can have one of the following values: $LVGS_NORMAL - Groups are expanded, the group name is displayed, and all items in the group are displayed. $LVGS_COLLAPSED - The group is collapsed. $LVGS_HIDDEN - The group is hidden. $LVGS_NOHEADER - The group does not display a header. $LVGS_COLLAPSIBLE - The group can be collapsed. $LVGS_FOCUSED - The group has keyboard focus. $LVGS_SELECTED - The group is selected. $LVGS_SUBSETED - The group displays only a portion of its items. $LVGS_SUBSETLINKFOCUSED - The subset link of the group has keyboard focus  | 
| Success: | True. | 
| Failure: | False. | 
_GUICtrlListView_GetGroupInfo, _GUICtrlListView_GetGroupInfoByIndex
#include <GUIConstantsEx.au3>
#include <GuiImageList.au3>
#include <GuiListView.au3>
#include <MsgBoxConstants.au3>
Example()
Func Example()
    GUICreate("ListView Get/Set Group Info (v" & @AutoItVersion & ")", 400, 300)
    Local $idListview = GUICtrlCreateListView("", 2, 2, 394, 268)
    GUISetState(@SW_SHOW)
    ; Set ANSI format
;~     _GUICtrlListView_SetUnicodeFormat($idListview, False)
    ; Load images
    Local $hImage = _GUIImageList_Create()
    _GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($idListview, 0xFF0000, 16, 16))
    _GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($idListview, 0x00FF00, 16, 16))
    _GUIImageList_Add($hImage, _GUICtrlListView_CreateSolidBitMap($idListview, 0x0000FF, 16, 16))
    _GUICtrlListView_SetImageList($idListview, $hImage, 1)
    ; Add columns
    _GUICtrlListView_AddColumn($idListview, "Column 0", 100)
    _GUICtrlListView_AddColumn($idListview, "Column 1", 100)
    _GUICtrlListView_AddColumn($idListview, "Column 2", 100)
    ; Add items
    _GUICtrlListView_AddItem($idListview, "Row 0: Col 0", 0)
    _GUICtrlListView_AddSubItem($idListview, 0, "Row 0: Col 1", 1)
    _GUICtrlListView_AddSubItem($idListview, 0, "Row 0: Col 2", 2)
    _GUICtrlListView_AddItem($idListview, "Row 1: Col 0", 1)
    _GUICtrlListView_AddSubItem($idListview, 1, "Row 1: Col 1", 1)
    _GUICtrlListView_AddItem($idListview, "Row 2: Col 0", 2)
    ; Build groups
    _GUICtrlListView_EnableGroupView($idListview)
    _GUICtrlListView_InsertGroup($idListview, -1, 1, "Group 1", 1)
    _GUICtrlListView_InsertGroup($idListview, -1, 2, "Group 2")
    _GUICtrlListView_SetItemGroupID($idListview, 0, 1)
    _GUICtrlListView_SetItemGroupID($idListview, 1, 2)
    _GUICtrlListView_SetItemGroupID($idListview, 2, 2)
    ; Change group information
    Local $aInfo = _GUICtrlListView_GetGroupInfo($idListview, 1)
    MsgBox($MB_SYSTEMMODAL, "Information", "Group 1 Text: " & $aInfo[0])
    _GUICtrlListView_SetGroupInfo($idListview, 1, "New Group 1")
    ; Loop until the user exits.
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE
    GUIDelete()
EndFunc   ;==>Example