# Function Reference

# _GUICtrlListBox_GetItemHeight

Retrieves the height of items

#include <GuiListBox.au3>
_GUICtrlListBox_GetItemHeight ( $hWnd )

## Parameters

$hWnd | Control ID/Handle to the control

## Return Value

Success: | the height, in pixels, of each item in the list box.
Failure: | 0.

## Related

_GUICtrlListBox_SetItemHeight

## Example

    #include <GUIConstantsEx.au3>
    #include <GuiListBox.au3>
    #include <MsgBoxConstants.au3>

    Example()

    Func Example()
        ; Create GUI
        GUICreate("List Box Get/Set Item Height (v" & @AutoItVersion & ")", 400, 296)
        Local $idListBox = GUICtrlCreateList("", 2, 2, 396, 296)
        GUISetState(@SW_SHOW)

        ; Add strings
        _GUICtrlListBox_BeginUpdate($idListBox)
        For $iI = 0 To 9
            _GUICtrlListBox_AddString($idListBox, StringFormat("%03d : string", $iI))
        Next
        _GUICtrlListBox_EndUpdate($idListBox)

        ; Show item height
        MsgBox($MB_SYSTEMMODAL, "Information", "Item height: " & _GUICtrlListBox_GetItemHeight($idListBox))

        ; Set item height
        _GUICtrlListBox_SetItemHeight($idListBox, 26)

        ; Show item height
        MsgBox($MB_SYSTEMMODAL, "Information", "Item height: " & _GUICtrlListBox_GetItemHeight($idListBox))

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