Retrieves the length of a line
#include <GuiRichEdit.au3>
_GUICtrlRichEdit_GetLineLength ( $hWnd, $iLine )
| $hWnd | Handle to the control |
| $iLine | line number Special value: -1 - return number of unselected characters on lines containing selected characters |
| Success: | Multi-line control - Length of the line (in characters). Single-line control - number of characters in the control. |
| Failure: | 0 and sets the @error flag to non-zero. |
| @error: | 101 - $hWnd is not a handle 102 - $iLine is neither positive nor -1 1022 - $iLine is greater than number of characters in the control |
A control that contains no text has one line.
The first inter-character position in a control is 0.
The result does not include carriage-return characters at the end of the line.
Search EM_GETLINELENGTH in MSDN Library.
#include <GUIConstantsEx.au3>
#include <GuiRichEdit.au3>
#include <WindowsConstants.au3>
Global $g_idLblMsg
Example()
Func Example()
Local $hGui, $hRichEdit, $iMsg
$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))
$g_idLblMsg = GUICtrlCreateLabel("", 10, 235, 300, 60)
GUISetState(@SW_SHOW)
Report("The current line contains " & _GUICtrlRichEdit_GetLineLength($hRichEdit, -1) & " characters")
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