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Process Communication - WM_COPYDATA

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Wicked

Post subject: Process Communication - WM_COPYDATA

Posted: November 25th, 2011, 9:27 pm

Joined: June 7th, 2008, 6:00 am
Posts: 389

I'm using AHK_L Unicode 32B, not sure if that matters but...

I'm using the following:
Reciever.ahk

Code:

#SingleInstance
OnMessage(0x4a, "Receive_WM_COPYDATA")
Return

Receive_WM_COPYDATA(W, L)
{
    SA := NumGet(L + 8)
    SL := StrLen(SA)
    VarSetCapacity(I, SL)
    DllCall("lstrcpy", "str", I, "uint", SA)
    Tooltip, % I
}

Sender.ahk

Code:

Send_WM_COPYDATA("Test")

Send_WM_COPYDATA(STS)
{
    TST = Reciever.ahk ahk_class AutoHotkey
    VarSetCapacity(CDS, 12, 0)
    NumPut(StrLen(STS) + 1, CDS, 4)
    NumPut(&STS, CDS, 8)
    PDHW := A_DetectHiddenWindows
    PTMM := A_TitleMatchMode
    DetectHiddenWindows On
    SetTitleMatchMode 2
    SendMessage, 0x4a, 0, &CDS,, %TST%
    DetectHiddenWindows %PDHW%
    SetTitleMatchMode %PTMM%
}

It used to work on AHK basic, however on AHK_L, I can only get the first letter to show up. Does anyone know why?

Thanks for your time! I'm probably just overlooking something.

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SKAN

Post subject:

Posted: November 25th, 2011, 10:54 pm

Joined: December 26th, 2005, 4:40 pm
Posts: 8776

Code:

Receive_WM_COPYDATA(W, L) {
   Tooltip % StrGet( NumGet(L+8), NumGet(L+4), "UTF-16" )
}

Also, you need to adjust StrLen in sender.ahk

Code:

NumPut( (StrLen(STS)*2) + 2, CDS, 4)

Edit: Oops. I just noticed.. AHK_L documentation has updated examples under OnMessage()

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Wicked

Post subject:

Posted: November 25th, 2011, 11:38 pm

Joined: June 7th, 2008, 6:00 am
Posts: 389

My God, SKAN... Is there anything you can't do?

I honestly feel bad for all the times I've had to hassle you to help me in the past. You're a fantastic help!

Rsed explained to me why the changes needed made in IRC.

Thanks guys!

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nimda

Post subject:

Posted: November 26th, 2011, 12:03 am

Joined: December 26th, 2010, 7:40 pm
Posts: 4172
Location: Awesometown, USA

"Is there anything you can't do?"
Can he figure out how to call DwmDefaultWinowProc() with WM_NCHITTEST?

I'm really over my head in the "Script for sending winows back" thread

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TLM

Post subject:

Posted: November 26th, 2011, 12:57 am

Joined: August 21st, 2006, 7:07 pm
Posts: 2925
Location: The Shell

nimda wrote:

"Is there anything you can't do?"
Can he figure out how to call DwmDefaultWinowProc() with WM_NCHITTEST?

I'm really over my head in the "Script for sending winows back" thread

1st off your missing 01100100

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nimda

Post subject:

Posted: November 26th, 2011, 1:27 am

Joined: December 26th, 2010, 7:40 pm
Posts: 4172
Location: Awesometown, USA

My phone's qwerty keyboard is... questionable

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