_GUICtrlRichEdit_Create. How to pass max. memory limitation?

[Suppir]

If we use standart

$Edit1 = GUICtrlCreateEdit("", 0, 0, 400, 300)

we have limitation to 32 kb of data to be stored in Edit.

But we can use:

GUICtrlSetLimit($Edit1, 99999999)

to extend this limitation to 99999999 byte.

How to extend the limitation of _GUICtrlRichEdit_Create?

I really want to store more than 32 kb of text in Edit

[enaiman]

That's strange, an year ago I remember I had problems with an Edit control; I wanted to use it as a console window for a Telnet-like application but after a certain point it simply stopped to accept any more text.

It was a limitation at the time so I gave up and used an embedded IE with _IEDocInsertText to overcome the text limit.

However, today I had a surprise when trying the Edit text limit - it looks like it was able to display a whole 24Mb text file.

I wonder - is 3.3.0 responsible for that text limit change?

I guess I'll have to go back to old projects and change the embedded IE with Edit

To answer OP about Edit limit - it doesn't appear to have any 32kB limit with default settings, in my example, it is able to display a 24 mB string:

#include <ButtonConstants.au3>
#include <EditConstants.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
Opt("GUIOnEventMode", 1)
#Region ### START Koda GUI section ### Form=
$Form1 = GUICreate("Form1", 644, 447, 192, 124)
GUISetOnEvent($GUI_EVENT_CLOSE, "Form1Close")
$Edit1 = GUICtrlCreateEdit("", 24, 16, 593, 377)
GUICtrlSetData(-1, "Edit1")
GUICtrlSetOnEvent(-1, "Edit1Change")
$Button1 = GUICtrlCreateButton("Button1", 256, 408, 75, 25)
GUICtrlSetOnEvent(-1, "Button1Click")
GUISetState(@SW_SHOW)
#EndRegion ### END Koda GUI section ###

While 1
    Sleep(100)
WEnd

Func Button1Click()
    Local $tt
    For $i = 1 To 200000
        $tt &= "qqqqwwwwwwwwwwwwwwwwqqqqqqqqqqqqqqqqqqwwwwwwwwwwwssssssssssssssss  "&$i&@CRLF
    Next
    FileWrite(@TempDir&"\ttt.txt", $tt)
    GUICtrlSetData($Edit1, $tt)
EndFunc
Func Edit1Change()
    
EndFunc
Func Form1Close()
    Exit
EndFunc

Tested it further: it went very well up to 3000000 lines (481 MB); when tested for 4000000 it gave a memory allocation error

Edited November 25, 2009 by enaiman

[Suppir]

Yes, I wrote that CtrlEdit have no 32 kb. limitation. Actually it does, but if we using code

GUICtrlSetLimit($Edit1, 99999999)

we can enlarge this limit to 99999999 bytes.

But I'm talking about the limit in _GUICtrlRichEdit_Create control (which is in popular UDF RichEdit). It has a limit of 32 kb, and I really do not know how to pass this limit in RichEdit

[martin]

Yes, I wrote that CtrlEdit have no 32 kb. limitation. Actually it does, but if we using code

GUICtrlSetLimit($Edit1, 99999999)

we can enlarge this limit to 99999999 bytes.

But I'm talking about the limit in _GUICtrlRichEdit_Create control (which is in popular UDF RichEdit). It has a limit of 32 kb, and I really do not know how to pass this limit in RichEdit

Send a message to the rich edit control.

Const[i] $EM_EXLIMITTEXT =[/i] $WM_USER+53
_SendMessage($hRE,$EM_EXLIMITTEXT,0,$NewUpperLimit)