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Send Params to a running AU3

JohnBailey
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JohnBailey Universalist

JohnBailey

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Scenario: (Note: I will use GUIs in this scenario, because it is easier to discuss) I have two AU3 GUIs open that I've created (so I have complete control). I click a button in GUI-1. How do I send parameters defined in the button action to GUI-2 and have GUI-2 receive it?

The only idea I could come up with is a TCP connection. That seems cumbersome and really doesn't answer my question.

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PsaltyDS Universalist

PsaltyDS

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Scenario: (Note: I will use GUIs in this scenario, because it is easier to discuss) I have two AU3 GUIs open that I've created (so I have complete control). I click a button in GUI-1. How do I send parameters defined in the button action to GUI-2 and have GUI-2 receive it?

The only idea I could come up with is a TCP connection. That seems cumbersome and really doesn't answer my question.

If you're geeky enough with AutoIt, you can search the forum for in depth discussion of WM_COPYDATA.

For lower lifeforms like myself there's simply working on the controls: Using GUI Controls for interprocess comms

Keep in mind that the controls used don't have to be visible for that to work.

:)

Valuater's AutoIt 1-2-3, Class... Is now in Session!For those who want somebody to write the script for them: RentACoder"Any technology distinguishable from magic is insufficiently advanced." -- Geek's corollary to Clarke's law
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JohnBailey Universalist

JohnBailey

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If you're geeky enough with AutoIt, you can search the forum for in depth discussion of WM_COPYDATA.

For lower lifeforms like myself there's simply working on the controls: Using GUI Controls for interprocess comms

Keep in mind that the controls used don't have to be visible for that to work.

:)

Lower lifeforms nothing! ;) That's a really smart idea. I didn't even think of that, so if I'm a lower lifeform too then I'm lower than low ;) It's a really creative idea. I'm also going to look up WM_COPYDATA, because I'm curious like that and enjoy learning neat stuff (even if I can't use it usually I'm enlightened along the way).

thanks as always PsaltyDS!

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JohnBailey Universalist

JohnBailey

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PsaltyDS, I found the following two (a sender and receiver). However, I'm doing something wrong. I don't understand one part at all which I will point out in a moment. First I must show you the two scripts.

SENDER

;original by martin (http://www.autoitscript.com/forum/index.php?showtopic=50110&view=findpost&p=389386)

#include <misc.au3>

; Windows Definitions
Global Const $StructDef_COPYDATA = "ptr;dword;ptr"
Global Const $WM_COPYDATA = 0x4A

Global Const $STRUCTDEF_AU3MESSAGE = "char[256];int"
$TextToSend = "Something for us to shout about!"
;$CDString = DllStructCreate("char var1[256]");the array to hold the string we are sending
$CDString = DllStructCreate($STRUCTDEF_AU3MESSAGE);the array to hold the string we are sending

DllStructSetData($CDString,1,$TextToSend)
$pCDString = DllStructGetPtr($CDString);the pointer to the string

$vs_cds = DllStructCreate($StructDef_COPYDATA);create the message struct
DllStructSetData($vs_cds,"var1",0);0 here indicates to the receiving program that we are sending a string
DllStructSetData($vs_cds,"var2",StringLen($TextToSend) + 1);tell the receiver the length of the string
DllStructSetData($vs_cds,"var3",$pCDString);the pointer to the string
$pStruct = DllStructGetPtr($vs_cds)
_SendMessage(WinGetHandle("getMessage"),$WM_COPYDATA,0,$pStruct)

MsgBox(0,'Sender - Done','String sent')

$vs_cds = 0;free the struct
$CDString = 0;free the structoÝ÷ Ù´DBÛjëh×6;original by piccaso http://www.autoitscript.com/forum/index.php?showtopic=22598&hl=

; Windows Definitions
Global Const $StructDef_COPYDATA = "ptr;dword;ptr"
Global Const $WM_COPYDATA = 0x4A
Global Const $WM_CLOSE = 0x10
; The costum Struct (Must be the same in Sender and Recivcer)
Global Const $STRUCTDEF_AU3MESSAGE = "char[256];int"

; Create Reciver window
$hwmd_Reciver = GUICreate("getMessage")
; Register Windows Messages
GUIRegisterMsg($WM_COPYDATA, "_GUIRegisterMsgProc")
GUIRegisterMsg($WM_CLOSE, "_GUIRegisterMsgProc")
; Message Handler
Func _GUIRegisterMsgProc($hWnd, $MsgID, $WParam, $LParam)
    If $MsgID = $WM_COPYDATA Then
        ; We Recived a WM_COPYDATA Message
        ; $LParam = Poiter to a COPYDATA Struct
        $vs_cds = DllStructCreate($StructDef_COPYDATA, $LParam)
        ; Member No. 3 of COPYDATA Struct (PVOID lpData;) = Pointer to Costum Struct
        $vs_msg = DllStructCreate($STRUCTDEF_AU3MESSAGE, DllStructGetData($vs_cds, 3))
        ; Display what we have recived
        MsgBox(0, "Recver - Test String", DllStructGetData($vs_msg, 1))
        MsgBox(0, "Recver - Test Integer", DllStructGetData($vs_msg, 2))
    ElseIf $MsgID = $WM_CLOSE Then
        ; We Recived a WM_CLOSE Message
        Exit
    EndIf
EndFunc   ;==>_GUIRegisterMsgProc
; Keep it Runnig ...
While 1
    Sleep(250)
WEndoÝ÷ Ù´$È8ßÛJéeíë׫1ªí{zk-¡·¬zwbayÖ­jë"§jºÚÊ좻ljëh×6$CDString = DllStructCreate("char var1[256]");the array to hold the string we are sending
$vs_cds = DllStructCreate($StructDef_COPYDATA);create the message struct
DllStructSetData($vs_cds,"var1",0);0 here indicates to the receiving program that we are sending a string
DllStructSetData($vs_cds,"var2",StringLen($TextToSend) + 1);tell the receiver the length of the string
DllStructSetData($vs_cds,"var3",$pCDString);the pointer to the string
$pStruct = DllStructGetPtr($vs_cds)

I just don't understand DllStructSetData well enough (or barely at all) to know what to change to get these two to "read each other." They, and I could be wrong, seem to be shaking hands. What do I need to be looking at changing in the receiver or sender?

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sandman Universalist

sandman

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I recently made a UDF for this, based off PsaltyDS's idea. Check it out if you would like to. It's very simple, there's no messing with DLLS or whatever.

[center]"Yes, [our app] runs on Windows as well as Linux, but if you had a Picasso painting, would you put it in the bathroom?" -BitchX.com (IRC client)"I would change the world, but they won't give me the source code." -Unknownsite . blog . portfolio . claimidcode.is.poetry();[/center]

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PsaltyDS Universalist

PsaltyDS

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PsaltyDS, I found the following two (a sender and receiver). However, I'm doing something wrong. I don't understand one part at all which I will point out in a moment. First I must show you the two scripts.

SENDER

$StructDef_COPYDATA = "ptr;dword;ptr"

$vs_cds = DllStructCreate($StructDef_COPYDATA) ;create the message struct
DllStructSetData($vs_cds,"var1",0) ;0 here indicates to the receiving program that we are sending a string
DllStructSetData($vs_cds,"var2",StringLen($TextToSend) + 1) ;tell the receiver the length of the string
DllStructSetData($vs_cds,"var3",$pCDString) ;the pointer to the string
$pStruct = DllStructGetPtr($vs_cds)oÝ÷ Øî²×hmºw^®ËZÐå+k¹ËRzÐÚµ¬W§¢è!¢¶Ú­érjÖ¥Ú$0«m¡ÈZ­¢­¶¬zÜ(¶®¢ÚÞi×r-êêºSìÒ¢é]mì+¢x,yé­¡·¬©"ZÛ«] ÞyÛhméh¢H§«©àx"Ø^­ç÷«¢»×«þX¬µ8ZK7ݩݬx!¢é]$Þ{h¶¥y¦-yÖ¢÷­+)¢Ëªê-xýz,·±¥êí~캷·Ü­#
'uêðêÞÊ ¢Ú®¢ÛÚ¯Z®¢Ûa®ê®¢ÛÚ¯z®¢×ë¢d¡¢é]m¶­m殶­sbb33cµ7G'V7DFVeô4õDDÒgV÷C·G#¶Gv÷&C·G"gV÷C° ¢b33c·g5ö6G2ÒFÆÅ7G'V7D7&VFRb33cµ7G'V7DFVeô4õDD¶7&VFRFRÖW76vR7G'V7@¤FÆÅ7G'V7E6WDFFb33c·g5ö6G2ÃóW&RæF6FW2FòFR&V6Vfær&öw&ÒFBvR&R6VæFær7G&æp¤FÆÅ7G'V7E6WDFFb33c·g5ö6G2ÃÅ7G&ætÆVâb33cµFWEFõ6VæB²·FVÆÂFR&V6VfW"FRÆVæwFöbFR7G&æp¤FÆÅ7G'V7E6WDFFb33c·g5ö6G2Ã"Âb33c·4E7G&ær·FRöçFW"FòFR7G&æp¢b33c·7G'V7BÒFÆÅ7G'V7DvWEG"b33c·g5ö6G2

Because you never assigned the names "var1" thru "var3" to those items, so they should be referenced by index number. Still, I could very easily be wrong on that...

:)

Valuater's AutoIt 1-2-3, Class... Is now in Session!For those who want somebody to write the script for them: RentACoder"Any technology distinguishable from magic is insufficiently advanced." -- Geek's corollary to Clarke's law
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JohnBailey Universalist

JohnBailey

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I'm no DLL expert for sure! But I wonder where you got "var1" thru "var3" from? Shouldn't that be:

$StructDef_COPYDATA = "ptr;dword;ptr"

$vs_cds = DllStructCreate($StructDef_COPYDATA) ;create the message struct
DllStructSetData($vs_cds,0,0) ;0 here indicates to the receiving program that we are sending a string
DllStructSetData($vs_cds,1,StringLen($TextToSend) + 1) ;tell the receiver the length of the string
DllStructSetData($vs_cds,2,$pCDString) ;the pointer to the string
$pStruct = DllStructGetPtr($vs_cds)

Because you never assigned the names "var1" thru "var3" to those items, so they should be referenced by index number. Still, I could very easily be wrong on that...

:)

What you wrote makes sense. The var1 thru var3 was already in the script per Martin. I'll try that (what you wrote)

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JohnBailey Universalist

JohnBailey

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this works!

SENDER

;original by martin (http://www.autoitscript.com/forum/index.php?showtopic=50110&view=findpost&p=389386)
;adjusted
#include <misc.au3>

; Windows Definitions
;Global Const $StructDef_COPYDATA = "ptr;dword;ptr"
Global Const $StructDef_COPYDATA = "dword var1;dword var2;ptr var3";I have changed piccaso's structure
Global Const $WM_COPYDATA = 0x4A

Global Const $STRUCTDEF_AU3MESSAGE = "char[256];int"
$TextToSend = "Something for us to shout about!"
$CDString = DllStructCreate("char var1[256]");the array to hold the string we are sending
;$CDString = DllStructCreate($STRUCTDEF_AU3MESSAGE);the array to hold the string we are sending


DllStructSetData($CDString,1,$TextToSend)
$pCDString = DllStructGetPtr($CDString);the pointer to the string

$vs_cds = DllStructCreate($StructDef_COPYDATA);create the message struct
DllStructSetData($vs_cds,"var1",0);0 here indicates to the receiving program that we are sending a string
DllStructSetData($vs_cds,"var2",StringLen($TextToSend) + 1);tell the receiver the length of the string
DllStructSetData($vs_cds,"var3",$pCDString);the pointer to the string
$pStruct = DllStructGetPtr($vs_cds)
_SendMessage(WinGetHandle("getMessage"),$WM_COPYDATA,0,$pStruct)

MsgBox(0,'Sender - Done','String sent')

$vs_cds = 0;free the struct
$CDString = 0;free the structoÝ÷ Ù´DBÛjëh×6;original by piccaso http://www.autoitscript.com/forum/index.php?showtopic=22598&hl=

; Windows Definitions
;Global Const $StructDef_COPYDATA = "ptr;dword;ptr"
Global Const $StructDef_COPYDATA = "dword var1;dword var2;ptr var3";I have changed piccaso's structure
Global Const $WM_COPYDATA = 0x4A
Global Const $WM_CLOSE = 0x10
; The costum Struct (Must be the same in Sender and Recivcer)
;Global Const $STRUCTDEF_AU3MESSAGE = "char[256];int"
Global Const $STRUCTDEF_AU3MESSAGE = "char var1[256]"

; Create Reciver window
$hwmd_Reciver = GUICreate("getMessage")
; Register Windows Messages
GUIRegisterMsg($WM_COPYDATA, "_GUIRegisterMsgProc")
GUIRegisterMsg($WM_CLOSE, "_GUIRegisterMsgProc")
; Message Handler
Func _GUIRegisterMsgProc($hWnd, $MsgID, $WParam, $LParam)
    If $MsgID = $WM_COPYDATA Then
        ; We Recived a WM_COPYDATA Message
        ; $LParam = Poiter to a COPYDATA Struct
        $vs_cds = DllStructCreate($StructDef_COPYDATA, $LParam)
        ; Member No. 3 of COPYDATA Struct (PVOID lpData;) = Pointer to Costum Struct
        $vs_msg = DllStructCreate($STRUCTDEF_AU3MESSAGE, DllStructGetData($vs_cds, 3))
        ; Display what we have recived
        MsgBox(0, "Recver - Test String", DllStructGetData($vs_msg, 1))
        MsgBox(0, "Recver - Test Integer", DllStructGetData($vs_msg, 2))
    ElseIf $MsgID = $WM_CLOSE Then
        ; We Recived a WM_CLOSE Message
        Exit
    EndIf
EndFunc   ;==>_GUIRegisterMsgProc
; Keep it Runnig ...
While 1
    Sleep(250)
WEnd
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PsaltyDS Universalist

PsaltyDS

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PsaltyDS, I tried getting rid of the var1 thru var3 and replacing them with the numbers 1 thru 3, but that doesn't work either.

That should be 0 to 2, not 1 to 3, I believe.

this works!

SENDER

Global Const $StructDef_COPYDATA = "dword var1;dword var2;ptr var3";I have changed piccaso's structure

;... 

DllStructSetData($vs_cds,"var1",0);0 here indicates to the receiving program that we are sending a string
DllStructSetData($vs_cds,"var2",StringLen($TextToSend) + 1);tell the receiver the length of the string
DllStructSetData($vs_cds,"var3",$pCDString);the pointer to the string
That makes sense, you named them var1 thru var3 and reference them by those names.

Glad you got it working.

:)

Valuater's AutoIt 1-2-3, Class... Is now in Session!For those who want somebody to write the script for them: RentACoder"Any technology distinguishable from magic is insufficiently advanced." -- Geek's corollary to Clarke's law
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