Using GUI Controls for interprocess comms

[PsaltyDS]

Somebody asked about way to have two .exe compiled scripts pass data between each other. One method discussed was simply reading the contents of each other's GUI controls. These two scripts were to demonstrate that. The first script presents a gui that takes and expression like "1 + 2" and returns the cube ("27"), only there is no code in the script to do the math:

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#include <guiconstants.au3>

; Create GUI
Opt("GuiOnEventMode", 1)
$hGUI = GUICreate("Parent GUI", 270, 170, 100, 100)
GUISetOnEvent($GUI_EVENT_CLOSE, "_Quit")
GUICtrlCreateLabel("Input number to be cubed (X) and click OK:", 10, 10, 250, 30)
GUICtrlCreateLabel("X = ", 10, 55, 150, 30)
$Edit1 = GUICtrlCreateInput(" ", 70, 50, 150, 30)
GUICtrlCreateLabel("X^3 = ", 10, 95, 150, 30)
$Edit2 = GUICtrlCreateInput(" ", 70, 90, 150, 30)
$Button1 = GUICtrlCreateButton("OK", 100, 130, 50, 30)
GUICtrlSetOnEvent($Button1, "_OK")
GUICtrlSetState($Edit1, $GUI_FOCUS)
GUISetState()

While 1
    Sleep(20)
WEnd

Func _OK()
    GUICtrlSetData($Edit1, Number(Execute(GUICtrlRead($Edit1))))
    GUICtrlSetData($Edit2, "...processing")
    GUICtrlSetState($Edit1, $GUI_FOCUS)
EndFunc   ;==>_OK

Func _Quit()
    Exit
EndFunc   ;==>_QuitoÝ÷ Ù8^«aÆr©+!yÖòjÇ©j¶­z趦r©W~º&¶¬r¸©µ·¥£!Èky§ljwp®+^²Ú-ç(Úèȧ¶¬r¸©µ¦è½ã§zíê-êæºË[yÊ&¦)^u©Ý®éß®­ç±zȧqä10¢}ý¶»§najÛazƦzئ{­^AºØ­v¬m«mz¼!Èb±Ê&¦)^vÛ¢Øh¯br¬²Ö«µç_»-jëh×6#include <guiconstants.au3>

; Wait for parent
WinWait("Parent GUI")
WinActivate("Parent GUI")
WinWaitActive("Parent GUI")

; Create GUI
$hGUI = GUICreate("Child GUI", 200, 130, 470, 100)
$Label1 = GUICtrlCreateLabel("Input = <none>", 10, 10, 180, 30, $SS_CENTER)
$Label2 = GUICtrlCreateLabel("Output = <none>", 10, 50, 180, 30, $SS_CENTER)
$Label3 = GUICtrlCreateLabel("Cubes done = 0", 10, 90, 180, 30, $SS_CENTER)
GUISetState()

$CubeCnt = 0
While 1
    $Flag = ControlGetText("Parent GUI", "", "Edit2")
    If @error Then
        MsgBox(16, "Child GUI", "Parent GUI, Input2 control not found... exiting.", 10)
        Exit
    Else
        If $Flag = "...processing" Then
            $Input = Number(ControlGetText("Parent GUI", "", "Edit1"))
            GUICtrlSetData($Label1, "Input = " & $Input)
            $Output = $Input ^ 3
            GUICtrlSetData($Label2, "Output = " & $Output)
            $CubeCnt += 1
            GUICtrlSetData($Label3, "Cubes done = " & $CubeCnt)
            ControlSetText("Parent GUI", "", "Edit2", $Output)
        EndIf
    EndIf
    Sleep(100)
WEnd

Func _Quit()
    Exit
EndFunc   ;==>_Quit