Text Grab program

[nznet]

Hi John,

Sorry about that... should not have missed the array part. I have chnaged to the following:

#include <Array.au3>

Opt("WinTitleMatchMode", 2) ;1=start, 2=subStr, 3=exact, 4=advanced, -1 to -4=Nocase

$oMyError = ObjEvent("AutoIt.Error","MyErrFunc")

$hWnd = WinGetHandle("Notepad")

$Struct = DllStructCreate('wchar[1024]')

$text = DllCall("tgsdkx.dll","int","CaptureFromHWND","hwnd",$hwnd, "ptr", $struct)

If IsArray($text) Then

MsgBox(0, "Text", $text[0])

Else

MsgBox(0, "Error", @error)

EndIf

;_ArrayDisplay($text, "Text")

Func MyErrFunc()

Msgbox(0,"AutoItCOM Test","We intercepted a COM Error !" & @CRLF & @CRLF & _

"err.description is: " & @TAB & $oMyError.description & @CRLF & _

"err.windescription:" & @TAB & $oMyError.windescription & @CRLF & _

"err.number is: " & @TAB & hex($oMyError.number,8) & @CRLF & _

"err.lastdllerror is: " & @TAB & $oMyError.lastdllerror & @CRLF & _

"err.scriptline is: " & @TAB & $oMyError.scriptline & @CRLF & _

"err.source is: " & @TAB & $oMyError.source & @CRLF & _

"err.helpfile is: " & @TAB & $oMyError.helpfile & @CRLF & _

"err.helpcontext is: " & @TAB & $oMyError.helpcontext _

)

Endfunc

The error message that is returned is '0'.

Thanks,

Stephen

[JohnOne]

Well if the @error is 0 (which means success) the return ($text) should be an array, and the

error message should never show, so that has me stumped.

But you are passing it a struct, instead of a pointer to a struct.

it could also mean that it simply is not possible to use it in that fashion.

in any case, look up DllStructGetData() function, and test it for a value.

or since this is a dll call

try

$Struct = DllStructCreate('str')

$StrPtr = DllStructGetPtr($Struct)

DllStructSetData($Struct,1)

$text = DllCall("tgsdkx.dll","int","CaptureFromHWND","hwnd",$hwnd,"ptr", $StrPtr )

Or

$Struct = DllStructCreate('str')

DllStructSetData($Struct,1,"")

$text = DllCall("tgsdkx.dll","int","CaptureFromHWND","hwnd",$hwnd,"struct", $Struct )

etc...

Try passing the struct ByRef

etc...

But my guess, is you simply cannot use dll in this fashion.

Edited March 17, 2012 by JohnOne

[Richard Robertson]

As far as I know COM in AutoIt doesn't support parameters passed by reference.

[nznet]

Hi John,

Tried your other two suggestions. Both return an error returns '0'.

Thanks

Stephen

[nznet]

Hi Guys,

Sorry Richard... I did not respond to your posting the other week. Thanks for pitching in. And Thanks John for your Valent atempt to help.

However, is there any other suggestions anyone can give. If it means I need to go back to TextGrab to have them modify a dll to suit I am prepared to do this if I know what changes need to be made.

Kind Regards

Stephen

Edited March 28, 2012 by nznet

[drum]

Did you ever get the TextGrab library to work?? I am looking at it for a project I am working on.

[drum]

I have had a quick play with the last code from Stephen, and something is fundermentally wrong with either the code, mysetup or my myunderstanding because even if I feed the DllCall complete gibberish I get the exact same "0" result.

[careca]

If i wanted to do something like that, i would, 1. detect mouse click, 2. select everything. 3. Copy to clipboard.

Now this may be stupid, or out of context as i haven't bothered to read all posts, but it's just my 2 cents.