Send Controlmessages to a Window (not a AutoIt-Gui)

[Raik]

I want to comunicate with the Scintilla-Control in Notepad++.

The GUICtrl* Functions ar related only to AutoIt-Gui's, not to external Program-Windows.

ControlCommand() does not provide enought parameters (like various dll-calls, lparam, wparam, ...).

David Barrett once had suggested such a Function:

http://permalink.gmane.org/gmane.comp.windows.autoit.user/17713

Is this possible, or forbidden for security-reasons or impossible by design?

 

[Jos]

Have you checked out the other Controlxxxxx commands in the AutoIt3 Helpfile?

Jos

[Raik]

I want to build a helpertool for notepad++, to interact with, while possibly the computer is used too for other activities, so it is a bad idea (i think), to send keystrokes or use the clipboard. Thats why i want to use controlmessages.

At my first atempt notepad++ crashes, now ihave something, particular working, but i get no data back:

Global $NPPhwnd, $NPPselected
Global CONST $SCI_GETSELTEXT = 2161

$NPPhwnd = WinGetHandle("[Active;CLASS:Notepad++]")
Local $ScintillaClassNameNN = ControlGetFocus($NPPhwnd)
Local $ScintillaHwnd = ControlGetHandle($NPPhwnd,"",$ScintillaClassNameNN)

ConsoleWrite(SCI_GETSELTEXT($ScintillaHwnd))

Func SCI_GETSELTEXT($Sci)
    Local $iLen, $sBuf, $ret, $sText
    $iLen = DllCall("user32.dll", "long", "SendMessageW", "long", $Sci, "int", $SCI_GETSELTEXT, "int", 0, "int", 0)
    If @error Then Return -1
    $sBuf = DllStructCreate("char[" & $iLen[0] & "]")
    If @error Then Return -2
    ;DllStructSetData($sBuf, 1, "abcdefghijklmnopqrstuvwxyz")
    $ret = DllCall("user32.dll", "long", "SendMessageW", "long", $Sci, "int", $SCI_GETSELTEXT, "int", 0, "ptr", DllStructGetPtr($sBuf))
    If @error Then Return -3
    $sText = DllStructGetData($sBuf, 1)
    $sBuf = 0
    If @error Then Return -4
    Return $sText
EndFunc

Run it from nppExec after selecting some text:

"Path_to_AutoIt\AutoIt3.exe" /ErrorStdout "$(FULL_CURRENT_PATH)"

Returnvalue ($sText) is empty, should contain the selected text.

Edited May 8, 2015 by Raik

[Raik]

It seems that some Scintilla-Messages do work only within the same Process, especially the ones, witch use structs.

Any idea about this?

PS:

Maybe i have to use WM_COPYDATA like this: https://autoit.de/index.php/Thread/6438-WinAPI-PostMessage-string/?postID=47622#post47622 ?

Edited May 9, 2015 by Raik

[Raik]

Just for the Record:

_WinAPI_OpenProcess

_MemVirtualAllocEx

_WinAPI_ReadProcessMemory / _WinAPI_WriteProcessMemory

_MemVirtualFreeEx

and _WinAPI_CloseProcess

do the trick.