Retrieves the XY coordinates of an inter-character position
#include <GuiRichEdit.au3>
_GUICtrlRichEdit_GetXYFromCharPos ( $hWnd, $iCharPos )
$hWnd | Handle to the control |
$iCharPos | Inter-character position |
Success: | an array [ |
Failure: | sets the @error flag to non-zero. |
@error: | 101 - $hWnd is not a handle 1021 - $iCharPos is neither a positive number nor zero 1022 - $iCharPos exceeds the number of characters in the control |
The first inter-character position is numbered 0.
With a multi-line control, coordinates are returned even for inter-character positions that are not visible.
_GUICtrlRichEdit_GetCharPosFromXY
Search EM_POSFROMCHAR in MSDN Library.
#include <GUIConstantsEx.au3>
#include <GuiRichEdit.au3>
#include <WindowsConstants.au3>
Global $g_idLblMsg
Example()
Func Example()
Local $hGui, $hRichEdit, $iMsg, $aiPos, $idBtnNext, $iStep = 0
$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)
$idBtnNext = GUICtrlCreateButton("Next", 270, 310, 40, 30)
GUISetState(@SW_SHOW)
_GUICtrlRichEdit_AppendText($hRichEdit, @CRLF & "This is appended text.")
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
$aiPos = _GUICtrlRichEdit_GetXYFromCharPos($hRichEdit, 20)
Report("1.The coordinates of inter-character position 20 are (" & $aiPos[0] & "," & $aiPos[1] & ")")
Case 2
Report("2.The inter-character position at or nearest coordinates (" & $aiPos[0] & "," & $aiPos[1] & ") is " & _
_GUICtrlRichEdit_GetCharPosFromXY($hRichEdit, $aiPos[0], $aiPos[1]))
GUICtrlSetState($idBtnNext, $GUI_DISABLE)
EndSwitch
EndSelect
WEnd
EndFunc ;==>Example
Func Report($sMsg)
GUICtrlSetData($g_idLblMsg, $sMsg)
EndFunc ;==>Report