Function Reference


_GUICtrlRichEdit_GetNumberOfFirstVisibleLine

Gets number of the first line which is visible in the control

#include <GuiRichEdit.au3>
_GUICtrlRichEdit_GetNumberOfFirstVisibleLine ( $hWnd )

Parameters

$hWnd Handle to the control

Return Value

Success: the line number (1-based).
Failure: 0 and sets the @error flag to non-zero.
@error: 101 - $hWnd is not a handle

Remarks

The first line is numbered 1.

See Also

Search EM_GETFIRSTVISIBLELINE in MSDN Library.

Example

#include <GUIConstantsEx.au3>
#include <GuiRichEdit.au3>
#include <WindowsConstants.au3>

Global $g_idLblMsg

Example()

Func Example()
    Local $hGui, $iMsg, $hRichEdit
    $hGui = GUICreate("Example (" & StringTrimRight(@ScriptName, StringLen(".exe")) & ")", 320, 350, -1, -1)
    $hRichEdit = _GUICtrlRichEdit_Create($hGui, "This is a test.", 10, 10, 300, 220, _
            BitOR($ES_MULTILINE, $WS_VSCROLL, $ES_AUTOVSCROLL))
    $g_idLblMsg = GUICtrlCreateLabel("", 10, 235, 300, 60)
    GUISetState(@SW_SHOW)

    For $i = 2 To 50
        _GUICtrlRichEdit_AppendText($hRichEdit, @CRLF & "Line " & $i)
    Next

    Report("First visible line is number " & _GUICtrlRichEdit_GetNumberOfFirstVisibleLine($hRichEdit))

    While True
        $iMsg = GUIGetMsg()
        Select
            Case $iMsg = $GUI_EVENT_CLOSE
                _GUICtrlRichEdit_Destroy($hRichEdit) ; needed unless script crashes
                ; GUIDelete()   ; is OK too
                Exit
        EndSelect
    WEnd
EndFunc   ;==>Example

Func Report($sMsg)
    GUICtrlSetData($g_idLblMsg, $sMsg)
EndFunc   ;==>Report