Function Reference


_GUICtrlRichEdit_SetLimitOnText

Change number of characters that can be typed, pasted or streamed in as Rich Text Format

#include <GuiRichEdit.au3>
_GUICtrlRichEdit_SetLimitOnText ( $hWnd, $iNewLimit )

Parameters

$hWnd Handle to the control
$iNewLimit new limit

Return Value

Success: True.
Failure: False and sets the @error flag to non-zero.
@error: 101 - $hWnd is not a handle
102 - $iNewLimit is neither a positive number nor zero

Remarks

This function sets the limit on the number of characters a user can type in or paste into a control.

It also limits the number of characters of RTF text that can be streamed in using
_GUICtrlRichEdit_StreamFromFile() and _GUICtrlRichEdit_StreamFromVar().

It does not limit the amount of plain text that can be streamed in.

The initial limit is 32,767 characters.

Related

_GUICtrlRichEdit_StreamFromFile, _GUICtrlRichEdit_StreamFromVar, _GUICtrlRichEdit_StreamToFile, _GUICtrlRichEdit_StreamToVar

See Also

Search EM_EXLIMITTEXT in MSDN Library.

Example

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

Example()

Func Example()
    Local $hGui, $iMsg, $idBtnNext, $iStep = 0
    Local $idLblMsg, $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))
    $idLblMsg = GUICtrlCreateLabel("", 10, 235, 300, 60)
    $idBtnNext = GUICtrlCreateButton("Next", 270, 310, 40, 30)
    GUISetState(@SW_SHOW)

    _GUICtrlRichEdit_SetText($hRichEdit, "Paragraph 1")
    While True
        $iMsg = GUIGetMsg()
        Select
            Case $iMsg = $GUI_EVENT_CLOSE
                _GUICtrlRichEdit_Destroy($hRichEdit) ; needed unless script crashes
                ; GUIDelete()   ; is OK too
                Exit
            Case $iMsg = $idBtnNext
                $iStep += 1
                Switch $iStep
                    Case 1
                        _GUICtrlRichEdit_SetLimitOnText($hRichEdit, 0)
                        GUICtrlSetData($idLblMsg, "1. Limit set to 65,536 characters")
                    Case 2
                        _GUICtrlRichEdit_SetLimitOnText($hRichEdit, 100000)
                        GUICtrlSetData($idLblMsg, "2. Limit set to 100,000 characters")
                        GUICtrlSetState($idBtnNext, $GUI_DISABLE)
                EndSwitch
        EndSelect
    WEnd
EndFunc   ;==>Example