Capture event from external windows

Victorique · September 11, 2014

Harro,

I am trying to poll Skype for events, I want something to happen when it is minimised.

I have found some code on the forum that almost works, I have been tweaking it, but just can't get the minimise event to work. I would love some help on this. as I am not amamzing at DLL calling and such...

the event handle for $EVENT_SYSTEM_MINIMIZEEND is never hit.. even when i minimise the window, i always get the same event codes.

Here is what I have so far...

#include <WindowsConstants.au3>
#include <WinAPI.au3>
#include <Process.au3>
#include <Misc.au3>

Global $hDLL, $hWinEventProc, $hHook

HotKeySet("{ESC}", "_HotKey") ; Exit

;Event Constants
Global Const $EVENT_SYSTEM_SOUND = 0x0001 ;An MSAA event indicating that a sound was played.
Global Const $EVENT_SYSTEM_ALERT = 0x0002 ;An MSAA event indicating that an alert was generated.
Global Const $EVENT_SYSTEM_FOREGROUND = 0x0003 ;An MSAA event indicating that the foreground window changed.
Global Const $EVENT_SYSTEM_MENUSTART = 0x0004 ;An MSAA event indicating that a menu item on the menu bar was selected.
Global Const $EVENT_SYSTEM_MENUEND = 0x0005 ;An MSAA event indicating that a menu from the menu bar was closed.
Global Const $EVENT_SYSTEM_MENUPOPUPSTART = 0x0006 ;An MSAA event indicating that a pop-up menu was displayed.
Global Const $EVENT_SYSTEM_MENUPOPUPEND = 0x0007 ;An MSAA event indicating that a pop-up menu was closed.
Global Const $EVENT_SYSTEM_CAPTURESTART = 0x0008 ;An MSAA event indicating that a window has received mouse capture.
Global Const $EVENT_SYSTEM_CAPTUREEND = 0x0009 ;An MSAA event indicating that a window has lost mouse capture.
Global Const $EVENT_SYSTEM_DIALOGSTART = 0x0010 ;An MSAA event indicating that a dialog box was displayed.
Global Const $EVENT_SYSTEM_DIALOGEND = 0x0011 ;An MSAA event indicating that a dialog box was closed.
Global Const $EVENT_SYSTEM_SCROLLINGSTART = 0x0012 ;An MSAA event indicating that scrolling has started on a scroll bar.
Global Const $EVENT_SYSTEM_SCROLLINGEND = 0x0013 ;An MSAA event indicating that scrolling has ended on a scroll bar.
Global Const $EVENT_SYSTEM_SWITCHSTART = 0x0014 ;An MSAA event indicating that the user pressed ALT+TAB, which activates the switch window.
Global Const $EVENT_SYSTEM_SWITCHEND = 0x0015 ;An MSAA event indicating that the user released ALT+TAB.
Global Const $EVENT_SYSTEM_MINIMIZESTART = 0x0016 ;An MSAA event indicating that a window object is about to be minimized or maximized.
Global Const $EVENT_SYSTEM_MINIMIZEEND = 0x0017 ;An MSAA event indicating that a window object was minimized or maximized.
Global Const $EVENT_SYSTEM_MOVESIZESTART = 0x000A ;An MSAA event indicating that a window is being moved or resized.
Global Const $EVENT_SYSTEM_MOVESIZEEND = 0x000B ;An MSAA event indicating that the movement or resizing of a window is finished.
Global Const $EVENT_SYSTEM_CONTEXTHELPSTART = 0x000C ;An MSAA event indicating that a window entered context-sensitive Help mode.
Global Const $EVENT_SYSTEM_CONTEXTHELPEND = 0x000D ;An MSAA event indicating that a window exited context-sensitive Help mode.
Global Const $EVENT_SYSTEM_DRAGDROPSTART = 0x000E ;An MSAA event indicating that an application is about to enter drag-and-drop mode.
Global Const $EVENT_SYSTEM_DRAGDROPEND = 0x000F ;An MSAA event indicating that an application is about to exit drag-and-drop mode.

Global Const $EVENT_OBJECT_CREATE = 0x8000 ;An MSAA event indicating that an object was created.
Global Const $EVENT_OBJECT_DESTROY = 0x8001 ;An MSAA event indicating that an object was destroyed.
Global Const $EVENT_OBJECT_SHOW = 0x8002 ;An MSAA event indicating that a hidden object is being shown.
Global Const $EVENT_OBJECT_HIDE = 0x8003 ;An MSAA event indicating that an object is being hidden.
Global Const $EVENT_OBJECT_REORDER = 0x8004 ;An MSAA event indicating that a container object has added, removed, or reordered its children.
Global Const $EVENT_OBJECT_FOCUS = 0x8005 ;An MSAA event indicating that an object has received the keyboard focus.
Global Const $EVENT_OBJECT_SELECTION = 0x8006 ;An MSAA event indicating that the selection within a container object changed.
Global Const $EVENT_OBJECT_SELECTIONADD = 0x8007 ;An MSAA event indicating that an item within a container object was added to the selection.
Global Const $EVENT_OBJECT_SELECTIONREMOVE = 0x8008 ;An MSAA event indicating that an item within a container object was removed from the selection.
Global Const $EVENT_OBJECT_SELECTIONWITHIN = 0x8009 ;An MSAA event indicating that numerous selection changes occurred within a container object.
Global Const $EVENT_OBJECT_HELPCHANGE = 0x8010 ;An MSAA event indicating that an object's MSAA Help property changed.
Global Const $EVENT_OBJECT_DEFACTIonchange = 0x8011 ;An MSAA event indicating that an object's MSAA DefaultAction property changed.
Global Const $EVENT_OBJECT_ACCELERATORCHANGE = 0x8012 ;An MSAA event indicating that an object's MSAA KeyboardShortcut property changed.
Global Const $EVENT_OBJECT_INVOKED = 0x8013 ;An MSAA event indicating that an object has been invoked; for example, the user has clicked a button.
Global Const $EVENT_OBJECT_TEXTSELECTIonchangeD = 0x8014 ;An MSAA event indicating that an object's text selection has changed.
Global Const $EVENT_OBJECT_CONTENTSCROLLED = 0x8015 ;An MSAA event indicating that the scrolling of a window object has ended.
Global Const $EVENT_OBJECT_STATECHANGE = 0x800A ;An MSAA event indicating that an object's state has changed.
Global Const $EVENT_OBJECT_LOCATIonchange = 0x800B ;An MSAA event indicating that an object has changed location, shape, or size.
Global Const $EVENT_OBJECT_NAMECHANGE = 0x800C ;An MSAA event indicating that an object's MSAA Name property changed.
Global Const $EVENT_OBJECT_DESCRIPTIonchange = 0x800D ;An MSAA event indicating that an object's MSAA Description property changed.
Global Const $EVENT_OBJECT_VALUECHANGE = 0x800E ;An MSAA event indicating that an object's MSAA Value property changed.
Global Const $EVENT_OBJECT_PARENTCHANGE = 0x800F ;An MSAA event indicating that an object has a new parent object.

;minimum and maximum events
;to monitor one event type only use same event for min/max
Global $EVENT_Min = $EVENT_SYSTEM_SOUND
Global $EVENT_Max = $EVENT_SYSTEM_DRAGDROPEND

$hDLL = DllOpen("User32.dll")
$hWinEventProc = DllCallbackRegister("_WinEventProc", "none", "hwnd;int;hwnd;long;long;int;int")
If Not @error Then
    OnAutoItExitRegister("OnAutoItExit")
Else
    MsgBox(16 + 262144, "Error", "DllCallbackRegister(_WinEventProc) did not succeed.")
    Exit
EndIf

$hHook = _SetWinEventHook($EVENT_Min, $EVENT_Max, $hDLL)
If @error Then
    MsgBox(16 + 262144, "Error", "_SetWinEventHook() did not succeed.")
    Exit
EndIf

While 1
    Sleep(10)
WEnd

Func _WinEventProc($hHook, $iEvent, $hWnd, $idObject, $idChild, $iEventThread, $iEventTime)
    Local $PID = WinGetProcess($hWnd), $sEventProcName = _ProcessGetName($PID)
    ConsoleWrite("PID: " & $PID & @TAB & "WinTitle: " & StringLeft(WinGetTitle($hWnd), 30) & @TAB & "EventTime: " & $iEventTime & @TAB & @TAB & "Event: " & $iEvent & @CRLF)
    ConsoleWrite($idObject)
    if((StringInStr(WinGetTitle($hWnd),"Skype"))>=1) Then
        if($iEvent = $EVENT_SYSTEM_MINIMIZEEND) Then
            ConsoleWrite("Skype has been minimised!!")
        EndIf
    EndIf


EndFunc   ;==>_WinEventProc

Func _SetWinEventHook($iEventMin, $iEventMax, $hDLLUser32)
    Local $aRet
    Local Const $WINEVENT_OUTOFCONTEXT = 0x0
    Local Const $WINEVENT_SKIPOWNPROCESS = 0x2
    If Not $hDLLUser32 Or $hDLLUser32 = -1 Then $hDLLUser32 = "User32.dll"
    $aRet = DllCall($hDLLUser32, "hwnd", "SetWinEventHook", _
            "uint", $iEventMin, _
            "uint", $iEventMax, _
            "hwnd", 0, _
            "ptr", DllCallbackGetPtr($hWinEventProc), _
            "int", 0, _
            "int", 0, _
            "uint", BitOR($WINEVENT_OUTOFCONTEXT, $WINEVENT_SKIPOWNPROCESS))
    If @error Then Return SetError(@error, 0, 0)
    Return $aRet[0]
EndFunc   ;==>_SetWinEventHook

Func _HotKey()
    Switch @HotKeyPressed
        Case "{ESC}"
            Exit
    EndSwitch
EndFunc   ;==>_HotKey

Func OnAutoItExit()
    If $hWinEventProc Then
        Beep(3000, 5)
        DllCallbackFree($hWinEventProc)
    EndIf
    If $hHook Then DllCall("User32.dll", "int", "UnhookWinEvent", "hwnd", $hHook)
    If $hDLL Then DllClose($hDLL)
EndFunc   ;==>OnAutoItExit

Edited September 11, 2014 by Victorique

j0kky · September 11, 2014

I think you're looking for EVENT_SYSTEM_MINIMIZESTART, not for EVENT_SYSTEM_MINIMIZEEND

Victorique · September 11, 2014

I think you're looking for EVENT_SYSTEM_MINIMIZESTART, not for EVENT_SYSTEM_MINIMIZEEND

Hello,

Even that event is not hit, the only ones i get are

9,8 and 3

j0kky · September 11, 2014

Try to change:

Global $EVENT_Min = 0x00000001
Global $EVENT_Max = 0x7FFFFFFF

Does it affects in any way?

Victorique · September 11, 2014

Try to change:
Global $EVENT_Min = 0x00000001
Global $EVENT_Max = 0x7FFFFFFF
Does it affects in any way?

Brilliant!

though i changed it to

Global $EVENT_Min = $EVENT_SYSTEM_MINIMIZESTART

Global $EVENT_Max = $EVENT_SYSTEM_MINIMIZESTART

your first post was right in the first place, as I did try this before, but with

$EVENT_SYSTEM_MINIMIZEEND

Thank you so much!! ♥

j0kky · September 11, 2014

I'm glad to have helped you!

Edited September 11, 2014 by j0kky

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