Receiving message from _SendMessage

[RazerM]

If Script1.au3 is:

$PID = Run(@AutoItExe & ' "' & @ScriptDir & '\Script2.au3"')

$GUI = GUICreate("Script1Rcv")
GUIRegisterMsg(2000, "DoFunc")

While 1
 Sleep(100)
WEnd

Func DoFunc($hwnd, $MsgID, $wParam, $lParam)
 ConsoleWrite($MsgID & ":" & Number($wParam) & ":" & Number($lParam) & @CRLF)
 Exit
EndFunc   ;==>DoFuncoÝ÷ Ø    ÝIÊâ¦Ý»x¬jëh×6#include <misc.au3>
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Edited July 27, 2007 by RazerM

[martin]

I found what you did interesting.

Can you tell me, when you have reserved memory based on a windows handle using _MemInit, does that memory get automatically freed when the application whose window you use closes?

[PsaltyDS]

I found what you did interesting.

Can you tell me, when you have reserved memory based on a windows handle using _MemInit, does that memory get automatically freed when the application whose window you use closes?

I don't understand what the memory stuff is for. This transfers integers to a GUI via messages without any of that:

#include <GuiConstants.au3>
#include <misc.au3>

HotKeySet("{SPACE}", "_Trigger")

Opt("GuiOnEventMode", 1)
$hGUI = GUICreate("Mesage Test", 300, 200)
GUISetOnEvent($GUI_EVENT_CLOSE, "_Quit")
GUIRegisterMsg(2000, "_RcvMsg")
$Edit_1 = GUICtrlCreateEdit("Messages received:" & @CRLF, 10, 10, 280, 180)
$iTime = TimerInit()
GUISetState()

While 1
    Sleep(20)
WEnd

Func _Trigger()
    _SendMessage($hGUI, 2000, $iTime, TimerDiff($iTime))
EndFunc   ;==>_Trigger

Func _RcvMsg($hWnd, $Msg, $wParam, $lParam)
    ConsoleWrite("Debug: Received message:" & @LF & _
            @TAB & "$hWnd = " & $hWnd & @LF & _
            @TAB & "$Msg = " & $Msg & @LF & _
            @TAB & "$wParam = " & $wParam & @LF & _
            @TAB & "$lParam = " & $lParam & @LF)
    GUICtrlSetData($Edit_1, GUICtrlRead($Edit_1) & $wParam & ":" & $lParam & @CRLF)
EndFunc   ;==>_RcvMsg

Func _Quit()
    Exit
EndFunc   ;==>_Quit

Is it a particular tricky kind of message that's wanted?

[RazerM]

@martin

I should have freed the memory in the example

@PsaltyDS

It was strings I was finding hard to send, although i worked it out.

[PsaltyDS]

@martin

I should have freed the memory in the example

@PsaltyDS

It was strings I was finding hard to send, although i worked it out.

I see, thanks for pointing that out. Changed my code with just this:

Func _Trigger()
    _SendMessage($hGUI, 2000, "This is $wParam", "Time = " & Round(TimerDiff($iTime) / 1000, 2) & "secs", 0, "str", "wstr")
EndFunc   ;==>_Trigger

And the problem shows.

It just didn't seem like it should be that 'hard' (= fiddling with memory).

[RazerM]

I need to use _Mem functions to read and write to a DllStruct from another process.