Sets zoom level of the control
#include <GuiRichEdit.au3>
_GUICtrlRichEdit_SetZoom ( $hWnd, $iPercent )
| $hWnd | Handle to the control |
| $iPercent | percentage zoom values: 100 and 200 to 6400 |
| Success: | True. |
| Failure: | False and sets the @error flag to non-zero. |
| @error: | 101 - $hWnd is not a handle 1021 - $iPercent is not a positive number 1022 - $iPercent neither 100 nor in the range 200 to 6400 |
MSDN claims that EM_SETZOOM works from 1.56% (1/64) to 6400% (64/1) but testing shows that it only works reliably for the values shown above.
Search EM_SETZOOM in MSDN Library.
#include <GUIConstantsEx.au3>
#include <GuiRichEdit.au3>
#include <WindowsStylesConstants.au3>
Global $g_idLbl_Msg
Example()
Func Example()
Local $hGui = GUICreate("RichEdit Get/Set Zoom (v" & @AutoItVersion & ")", 360, 350, -1, -1)
Local $hRichEdit = _GUICtrlRichEdit_Create($hGui, "This is a test.", 10, 10, 340, 220, _
BitOR($ES_MULTILINE, $WS_VSCROLL, $ES_AUTOVSCROLL))
$g_idLbl_Msg = GUICtrlCreateLabel("", 10, 235, 300, 60)
Local $idBtn_Next = GUICtrlCreateButton("Next", 270, 310, 40, 30)
GUISetState(@SW_SHOW)
_GUICtrlRichEdit_AppendText($hRichEdit, @CRLF & "This is appended text.")
Local $iMsg, $iStep = 0
While True
$iMsg = GUIGetMsg()
Select
Case $iMsg = $GUI_EVENT_CLOSE
_GUICtrlRichEdit_Destroy($hRichEdit) ; needed unless script crashes
; GUIDelete() ; is OK too
Exit
Case $iMsg = $idBtn_Next
$iStep += 1
Switch $iStep
Case 1
Report("1.Now zoomed to " & _GUICtrlRichEdit_GetZoom($hRichEdit) & "%")
Case 2
_GUICtrlRichEdit_SetZoom($hRichEdit, 250)
Report("2.Now zoomed to " & _GUICtrlRichEdit_GetZoom($hRichEdit) & "%")
GUICtrlSetState($idBtn_Next, $GUI_DISABLE)
EndSwitch
EndSelect
WEnd
EndFunc ;==>Example
Func Report($sMsg)
GUICtrlSetData($g_idLbl_Msg, $sMsg)
EndFunc ;==>Report