Sign in to follow this  
Followers 0
philw

Edit control limits

13 posts in this topic

I read somewhere that on older systems e.g. Win98 files larger than 64k can't be displayed in an edit control, and that this limit applies to Notepad. Anyone know how Wordpad on Win98 gets around this?

Share this post


Link to post
Share on other sites



Anyone know how Wordpad on Win98 gets around this?

Wordpad uses some different kind of control (RTF?), not a standard Edit control.

 

Spoiler

Using OS: Win 7 Professional, Using AutoIt Ver(s): 3.3.6.1 / 3.3.8.1

AutoIt_Rus_Community.png AutoIt Russian Community

My Work...

Spoiler

AutoIt_Icon_small.pngProjects: ATT - Application Translate Tool {new}| BlockIt - Block files & folders {new}| SIP - Selected Image Preview {new}| SISCABMAN - SciTE Abbreviations Manager {new}| AutoIt Path Switcher | AutoIt Menu for Opera! | YouTube Download Center! | Desktop Icons Restorator | Math Tasks | KeyBoard & Mouse Cleaner | CaptureIt - Capture Images Utility | CheckFileSize Program

AutoIt_Icon_small.pngUDFs: OnAutoItErrorRegister - Handle AutoIt critical errors {new}| AutoIt Syntax Highlight {new}| Opera Library! | Winamp Library | GetFolderToMenu | Custom_InputBox()! | _FileRun UDF | _CheckInput() UDF | _GUIInputSetOnlyNumbers() UDF | _FileGetValidName() UDF | _GUICtrlCreateRadioCBox UDF | _GuiCreateGrid() | _PathSplitByRegExp() | _GUICtrlListView_MoveItems - UDF | GUICtrlSetOnHover_UDF! | _ControlTab UDF! | _MouseSetOnEvent() UDF! | _ProcessListEx - UDF | GUICtrl_SetResizing - UDF! | Mod. for _IniString UDFs | _StringStripChars UDF | _ColorIsDarkShade UDF | _ColorConvertValue UDF | _GUICtrlTab_CoverBackground | CUI_App_UDF | _IncludeScripts UDF | _AutoIt3ExecuteCode | _DragList UDF | Mod. for _ListView_Progress | _ListView_SysLink | _GenerateRandomNumbers | _BlockInputEx | _IsPressedEx | OnAutoItExit Handler | _GUICtrlCreateTFLabel UDF | WinControlSetEvent UDF | Mod. for _DirGetSizeEx UDF
 
AutoIt_Icon_small.pngExamples: 
ScreenSaver Demo - Matrix included | Gui Drag Without pause the script | _WinAttach()! | Turn Off/On Monitor | ComboBox Handler Example | Mod. for "Thinking Box" | Cool "About" Box | TasksBar Imitation Demo

Like the Projects/UDFs/Examples? Please rate the topic (up-right corner of the post header: Rating AutoIt_Rating.gif)

* === My topics === *

==================================================
My_Userbar.gif
==================================================

 

 

 

AutoIt is simple, subtle, elegant. © AutoIt Team

Share this post


Link to post
Share on other sites

Is this available in AutoIt? I'm working on an application that has to be able to open large text files (1mb or more). It's fine in later versions of Windows, but I'd like it to be backwards compatible if possible.

Share this post


Link to post
Share on other sites

Is this available in AutoIt?

Yes, check the thread about RichEdit Control. Look at the few last posts, there is a solution to increase the default limit.

 

Spoiler

Using OS: Win 7 Professional, Using AutoIt Ver(s): 3.3.6.1 / 3.3.8.1

AutoIt_Rus_Community.png AutoIt Russian Community

My Work...

Spoiler

AutoIt_Icon_small.pngProjects: ATT - Application Translate Tool {new}| BlockIt - Block files & folders {new}| SIP - Selected Image Preview {new}| SISCABMAN - SciTE Abbreviations Manager {new}| AutoIt Path Switcher | AutoIt Menu for Opera! | YouTube Download Center! | Desktop Icons Restorator | Math Tasks | KeyBoard & Mouse Cleaner | CaptureIt - Capture Images Utility | CheckFileSize Program

AutoIt_Icon_small.pngUDFs: OnAutoItErrorRegister - Handle AutoIt critical errors {new}| AutoIt Syntax Highlight {new}| Opera Library! | Winamp Library | GetFolderToMenu | Custom_InputBox()! | _FileRun UDF | _CheckInput() UDF | _GUIInputSetOnlyNumbers() UDF | _FileGetValidName() UDF | _GUICtrlCreateRadioCBox UDF | _GuiCreateGrid() | _PathSplitByRegExp() | _GUICtrlListView_MoveItems - UDF | GUICtrlSetOnHover_UDF! | _ControlTab UDF! | _MouseSetOnEvent() UDF! | _ProcessListEx - UDF | GUICtrl_SetResizing - UDF! | Mod. for _IniString UDFs | _StringStripChars UDF | _ColorIsDarkShade UDF | _ColorConvertValue UDF | _GUICtrlTab_CoverBackground | CUI_App_UDF | _IncludeScripts UDF | _AutoIt3ExecuteCode | _DragList UDF | Mod. for _ListView_Progress | _ListView_SysLink | _GenerateRandomNumbers | _BlockInputEx | _IsPressedEx | OnAutoItExit Handler | _GUICtrlCreateTFLabel UDF | WinControlSetEvent UDF | Mod. for _DirGetSizeEx UDF
 
AutoIt_Icon_small.pngExamples: 
ScreenSaver Demo - Matrix included | Gui Drag Without pause the script | _WinAttach()! | Turn Off/On Monitor | ComboBox Handler Example | Mod. for "Thinking Box" | Cool "About" Box | TasksBar Imitation Demo

Like the Projects/UDFs/Examples? Please rate the topic (up-right corner of the post header: Rating AutoIt_Rating.gif)

* === My topics === *

==================================================
My_Userbar.gif
==================================================

 

 

 

AutoIt is simple, subtle, elegant. © AutoIt Team

Share this post


Link to post
Share on other sites

#5 ·  Posted (edited)

Very useful thread. Thanks for that!

Edited by philw

Share this post


Link to post
Share on other sites

I notice that in the thread someone mentions that when opening the example included, Win98 came up with the error:

Global Const $WM_USER = 0x400

"Cannot redeclare a constant"

I'm getting the same message too. If I delete that particular constant declaration it comes up with other "Cannot redeclare..." messages. I tried removing all the #includes, as I thought they might contain original declarations, but it didn't seem to make a difference.

Is there any way round this?

Share this post


Link to post
Share on other sites

Is there any way round this?

Run Syntax check (Ctrl + F5) and then press F4 to jump to the next error, then just comment every line that highlighted (Ctrl + Q).

 

Spoiler

Using OS: Win 7 Professional, Using AutoIt Ver(s): 3.3.6.1 / 3.3.8.1

AutoIt_Rus_Community.png AutoIt Russian Community

My Work...

Spoiler

AutoIt_Icon_small.pngProjects: ATT - Application Translate Tool {new}| BlockIt - Block files & folders {new}| SIP - Selected Image Preview {new}| SISCABMAN - SciTE Abbreviations Manager {new}| AutoIt Path Switcher | AutoIt Menu for Opera! | YouTube Download Center! | Desktop Icons Restorator | Math Tasks | KeyBoard & Mouse Cleaner | CaptureIt - Capture Images Utility | CheckFileSize Program

AutoIt_Icon_small.pngUDFs: OnAutoItErrorRegister - Handle AutoIt critical errors {new}| AutoIt Syntax Highlight {new}| Opera Library! | Winamp Library | GetFolderToMenu | Custom_InputBox()! | _FileRun UDF | _CheckInput() UDF | _GUIInputSetOnlyNumbers() UDF | _FileGetValidName() UDF | _GUICtrlCreateRadioCBox UDF | _GuiCreateGrid() | _PathSplitByRegExp() | _GUICtrlListView_MoveItems - UDF | GUICtrlSetOnHover_UDF! | _ControlTab UDF! | _MouseSetOnEvent() UDF! | _ProcessListEx - UDF | GUICtrl_SetResizing - UDF! | Mod. for _IniString UDFs | _StringStripChars UDF | _ColorIsDarkShade UDF | _ColorConvertValue UDF | _GUICtrlTab_CoverBackground | CUI_App_UDF | _IncludeScripts UDF | _AutoIt3ExecuteCode | _DragList UDF | Mod. for _ListView_Progress | _ListView_SysLink | _GenerateRandomNumbers | _BlockInputEx | _IsPressedEx | OnAutoItExit Handler | _GUICtrlCreateTFLabel UDF | WinControlSetEvent UDF | Mod. for _DirGetSizeEx UDF
 
AutoIt_Icon_small.pngExamples: 
ScreenSaver Demo - Matrix included | Gui Drag Without pause the script | _WinAttach()! | Turn Off/On Monitor | ComboBox Handler Example | Mod. for "Thinking Box" | Cool "About" Box | TasksBar Imitation Demo

Like the Projects/UDFs/Examples? Please rate the topic (up-right corner of the post header: Rating AutoIt_Rating.gif)

* === My topics === *

==================================================
My_Userbar.gif
==================================================

 

 

 

AutoIt is simple, subtle, elegant. © AutoIt Team

Share this post


Link to post
Share on other sites

Thanks MsCreatoR, that worked perfectly! I now have a couple of functioning RichEdit controls. However, I don't seem to be able to resize them. Based on your previous suggestion I have:

$hEdit1=GUICtrlCreateEdit("",0,32,$winw,$winh-32,$ES_MULTILINE+$WS_VSCROLL+$ES_WANTRETURN)
_SendMessage($hEdit1,$EM_LIMITTEXT,4000000,0)

I can open files less than 32k, anything larger won't display. And if I copy and paste a larger amount of text into the control, it just displays the first 30,000 or so characters. I must be doing something wrong!

Share this post


Link to post
Share on other sites

#9 ·  Posted (edited)

_SendMessage needs Handle not CtrlId... you could use GUICtrlGetHandle($hEdit).. but it's better to use GUICtrlSendMsg in this case:

$hEdit1=GUICtrlCreateEdit("",0,32,$winw,$winh-32,$ES_MULTILINE+$WS_VSCROLL+$ES_WANTRETURN)
GUICtrlSendMsg($hEdit1, $EM_LIMITTEXT, 4000000, 0)

Edit:

But i am not sure that this works with standard Edit control...

Edited by MsCreatoR

 

Spoiler

Using OS: Win 7 Professional, Using AutoIt Ver(s): 3.3.6.1 / 3.3.8.1

AutoIt_Rus_Community.png AutoIt Russian Community

My Work...

Spoiler

AutoIt_Icon_small.pngProjects: ATT - Application Translate Tool {new}| BlockIt - Block files & folders {new}| SIP - Selected Image Preview {new}| SISCABMAN - SciTE Abbreviations Manager {new}| AutoIt Path Switcher | AutoIt Menu for Opera! | YouTube Download Center! | Desktop Icons Restorator | Math Tasks | KeyBoard & Mouse Cleaner | CaptureIt - Capture Images Utility | CheckFileSize Program

AutoIt_Icon_small.pngUDFs: OnAutoItErrorRegister - Handle AutoIt critical errors {new}| AutoIt Syntax Highlight {new}| Opera Library! | Winamp Library | GetFolderToMenu | Custom_InputBox()! | _FileRun UDF | _CheckInput() UDF | _GUIInputSetOnlyNumbers() UDF | _FileGetValidName() UDF | _GUICtrlCreateRadioCBox UDF | _GuiCreateGrid() | _PathSplitByRegExp() | _GUICtrlListView_MoveItems - UDF | GUICtrlSetOnHover_UDF! | _ControlTab UDF! | _MouseSetOnEvent() UDF! | _ProcessListEx - UDF | GUICtrl_SetResizing - UDF! | Mod. for _IniString UDFs | _StringStripChars UDF | _ColorIsDarkShade UDF | _ColorConvertValue UDF | _GUICtrlTab_CoverBackground | CUI_App_UDF | _IncludeScripts UDF | _AutoIt3ExecuteCode | _DragList UDF | Mod. for _ListView_Progress | _ListView_SysLink | _GenerateRandomNumbers | _BlockInputEx | _IsPressedEx | OnAutoItExit Handler | _GUICtrlCreateTFLabel UDF | WinControlSetEvent UDF | Mod. for _DirGetSizeEx UDF
 
AutoIt_Icon_small.pngExamples: 
ScreenSaver Demo - Matrix included | Gui Drag Without pause the script | _WinAttach()! | Turn Off/On Monitor | ComboBox Handler Example | Mod. for "Thinking Box" | Cool "About" Box | TasksBar Imitation Demo

Like the Projects/UDFs/Examples? Please rate the topic (up-right corner of the post header: Rating AutoIt_Rating.gif)

* === My topics === *

==================================================
My_Userbar.gif
==================================================

 

 

 

AutoIt is simple, subtle, elegant. © AutoIt Team

Share this post


Link to post
Share on other sites

It doesn't seem to. Not in Win 98 anyway. And you are right - it's standard edit controls I was producing, not rich edit controls. Damn!

Having corrected that little mistake, I was able to create and set the size of a rich edit control. However, when I tried to create two of them using tabs, either the tabs but not the controls were displayed, or the whole thing crashed. I think that in the thread above someone asked the question, whether they would work with tabs. Spent most of the day playing around with it, not really knowing what I was doing, and got nowhere! I think I'll have to look for another approach...

Share this post


Link to post
Share on other sites

It doesn't seem to. Not in Win 98 anyway. And you are right - it's standard edit controls I was producing, not rich edit controls. Damn!

Having corrected that little mistake, I was able to create and set the size of a rich edit control. However, when I tried to create two of them using tabs, either the tabs but not the controls were displayed, or the whole thing crashed. I think that in the thread above someone asked the question, whether they would work with tabs. Spent most of the day playing around with it, not really knowing what I was doing, and got nowhere! I think I'll have to look for another approach...

From MSDN:

EM_LIMITTEXT Message

Sets the text limit of an edit control. The text limit is the maximum amount of text, in TCHARs, that the user can type into the edit control. You can send this message to either an edit control or a rich edit control. For edit controls and Microsoft Rich Edit 1.0, bytes are used. For Rich Edit 2.0 and later, characters are used.

...

Share this post


Link to post
Share on other sites

Well, it's works for me (AutoIt 3.2.8.1 and 3.2.10.0):

#include <GuiConstants.au3>

;~ Global Const $EM_LIMITTEXT = 0xC5

$GUI = GUICreate("Test Script", 300, 200)

$hEdit = GUICtrlCreateEdit("Please wait...", 10, 20, 280, 160, $ES_MULTILINE+$WS_VSCROLL+$ES_WANTRETURN)
GUICtrlSendMsg($hEdit, $EM_LIMITTEXT, -1, 0)

GUISetState(@SW_SHOW, $GUI)

$sData = ""
For $i = 1 To 50000
    $sData &= "a"
Next

GUICtrlSetData($hEdit, $sData & @CRLF & @CRLF & "No Limit(?) :) , StringLen($sData): " & StringLen($sData))
ControlSend($GUI, "", $hEdit, "^{END}")

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
    EndSwitch
WEnd
1 person likes this

 

Spoiler

Using OS: Win 7 Professional, Using AutoIt Ver(s): 3.3.6.1 / 3.3.8.1

AutoIt_Rus_Community.png AutoIt Russian Community

My Work...

Spoiler

AutoIt_Icon_small.pngProjects: ATT - Application Translate Tool {new}| BlockIt - Block files & folders {new}| SIP - Selected Image Preview {new}| SISCABMAN - SciTE Abbreviations Manager {new}| AutoIt Path Switcher | AutoIt Menu for Opera! | YouTube Download Center! | Desktop Icons Restorator | Math Tasks | KeyBoard & Mouse Cleaner | CaptureIt - Capture Images Utility | CheckFileSize Program

AutoIt_Icon_small.pngUDFs: OnAutoItErrorRegister - Handle AutoIt critical errors {new}| AutoIt Syntax Highlight {new}| Opera Library! | Winamp Library | GetFolderToMenu | Custom_InputBox()! | _FileRun UDF | _CheckInput() UDF | _GUIInputSetOnlyNumbers() UDF | _FileGetValidName() UDF | _GUICtrlCreateRadioCBox UDF | _GuiCreateGrid() | _PathSplitByRegExp() | _GUICtrlListView_MoveItems - UDF | GUICtrlSetOnHover_UDF! | _ControlTab UDF! | _MouseSetOnEvent() UDF! | _ProcessListEx - UDF | GUICtrl_SetResizing - UDF! | Mod. for _IniString UDFs | _StringStripChars UDF | _ColorIsDarkShade UDF | _ColorConvertValue UDF | _GUICtrlTab_CoverBackground | CUI_App_UDF | _IncludeScripts UDF | _AutoIt3ExecuteCode | _DragList UDF | Mod. for _ListView_Progress | _ListView_SysLink | _GenerateRandomNumbers | _BlockInputEx | _IsPressedEx | OnAutoItExit Handler | _GUICtrlCreateTFLabel UDF | WinControlSetEvent UDF | Mod. for _DirGetSizeEx UDF
 
AutoIt_Icon_small.pngExamples: 
ScreenSaver Demo - Matrix included | Gui Drag Without pause the script | _WinAttach()! | Turn Off/On Monitor | ComboBox Handler Example | Mod. for "Thinking Box" | Cool "About" Box | TasksBar Imitation Demo

Like the Projects/UDFs/Examples? Please rate the topic (up-right corner of the post header: Rating AutoIt_Rating.gif)

* === My topics === *

==================================================
My_Userbar.gif
==================================================

 

 

 

AutoIt is simple, subtle, elegant. © AutoIt Team

Share this post


Link to post
Share on other sites

Sorry, when I said the method didn't seem to work with Win98, what I meant was, it wouldn't resize the edit control to allow really large text files to be opened. There still seems to be that built-in limit for edit controls on older versions of Windows. Guess I'll just have to try and get my head round rich edit controls!

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0