# Function Reference

# _GUICtrlEdit_GetFirstVisibleLine

Retrieves the 0-based index of the uppermost visible line in a multiline edit control

#include <GuiEdit.au3>
_GUICtrlEdit_GetFirstVisibleLine ( $hWnd )

## Parameters

$hWnd | Control ID/Handle to the control

## Return Value

Returns a 0-based index of the uppermost visible line in a multiline edit control.

## Remarks

The number of lines and the length of the lines in an edit control depend on the width of the control and the current Wordwrap setting.

## Example

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

    Example()

    Func Example()
        Local $idEdit

        ; Create GUI
        GUICreate("Edit Get First Visible Line", 400, 300)
        $idEdit = GUICtrlCreateEdit("", 2, 2, 394, 268)
        GUISetState(@SW_SHOW)

        For $x = 0 To 20
            _GUICtrlEdit_AppendText($idEdit, StringFormat("[%02d] Append to the end?", $x) & @CRLF)
        Next

        MsgBox($MB_SYSTEMMODAL, "Information", "First Visible Line: " & _GUICtrlEdit_GetFirstVisibleLine($idEdit))

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