catch WIN+L to do something before locking the PC

[sc4ry]

Hey, is it possible, to catch the combo of WIN + L (which locks directly the PC)?

It want to do a function before the PC really is locked ... after this i can call another function which locks the pc after that.

have anyone an idea?

i found a reg-hack, but im not able to write this into the registry, so that wont work.

thank you for your help.

[Jos]

Hey, is it possible, to catch the combo of WIN + L (which locks directly the PC)?

It want to do a function before the PC really is locked ... after this i can call another function which locks the pc after that.

have anyone an idea?

i found a reg-hack, but im not able to write this into the registry, so that wont work.

thank you for your help.

..and why do you need this type of function?

[sc4ry]

nothing illegal =)

ok, here we go.

we got a tel-client on work. there we have the posibility to say we are active or in pause. we should do pause when we are not at our desk.

because i forgot every time to change in pause-mode, i want to write a tool, which automate this.

i always lock my pc, when im not at my desk. but the client does not change automativcly to pause-mode when pc is locked ... so i have to catch the combo of WIN + L, set client in pause-mode and the lock my pc.

[Yashied]

nothing illegal =)

ok, here we go.

we got a tel-client on work. there we have the posibility to say we are active or in pause. we should do pause when we are not at our desk.

because i forgot every time to change in pause-mode, i want to write a tool, which automate this.

i always lock my pc, when im not at my desk. but the client does not change automativcly to pause-mode when pc is locked ... so i have to catch the combo of WIN + L, set client in pause-mode and the lock my pc.

#Include <HotKey.au3>

Global Const $VK_ESCAPE = 0x1B
Global Const $VK_L = 0x4C

_HotKeyAssign(BitOR($CK_WIN, $VK_L), 'MyFunc')
_HotKeyAssign(BitOR($CK_CONTROL, $VK_ESCAPE), 'Quit')

While 1
    Sleep(100)
WEnd

Func MyFunc()
    MsgBox(0, '', 'WIN-L has been pressed!')
    DllCall('user32.dll', 'int', 'LockWorkStation')
EndFunc   ;==>MyFunc

Func Quit()
    Exit
EndFunc   ;==>Quit

HotKey.au3

[Jos]

Not sure you can avoid it from locking the PC, but you should be able to capture the keys pressed with _IsPressed() and maybe you can still use Ctrl???() functions to update the telnet screen even though its locked.

Jos

[KaFu]

Exactly what I just wanted to say ...

[sc4ry]

thank your very much yashied ... thats what i need =)

i wrote this function before with an own hotkey, but its better for me, when WIN + L (also) switch the client in pause mode.

very nice, big thx

[sc4ry]

hi, im again with another question.

its something nice to have, but not a must ...

what is, when a user lock the pc via CTRL+ALT+DEL and LOCK PC?

i dont think i can use this hotkey-funktion, because CTRL+ALT+DELETE ist not the hotkey, my script should work with ... only if in this screen the LOCK PC button was clicked.

can i here also do a function before the pc is really locked?

[Yashied]

hi, im again with another question.

its something nice to have, but not a must ...

what is, when a user lock the pc via CTRL+ALT+DEL and LOCK PC?

i dont think i can use this hotkey-funktion, because CTRL+ALT+DELETE ist not the hotkey, my script should work with ... only if in this screen the LOCK PC button was clicked.

can i here also do a function before the pc is really locked?

You can NOT lock CTRL-ALT-DEL in Windows XP and above.

[sc4ry]

i dont want to lock this kombo, i only want to do my function (set tel-client in pause) when a user lock the pc via ctrl+alt+del.

[Yashied]

i dont want to lock this kombo, i only want to do my function (set tel-client in pause) when a user lock the pc via ctrl+alt+del.

You can define CTRL-ALT-DEL as a hot key, but stop the Windows Task Manager does not turn out. I'm sorry.

_HotKeyAssign(BitOR($CK_CONTROL, $CK_ALT, $VK_DELETE), 'MyFunc')

[sc4ry]

ok, i can do my function when ctrl+alt+del is pressed and set it back, if the user do not want to lock the pc ... but when i catch ctrl+alt+del, how can i return to the normal screen, which appears? (lock pc, change user, task manager, logoff, change pw, ...)

[Yashied]

ok, i can do my function when ctrl+alt+del is pressed and set it back, if the user do not want to lock the pc ... but when i catch ctrl+alt+del, how can i return to the normal screen, which appears? (lock pc, change user, task manager, logoff, change pw, ...)

Well, if you need to track the closing session, it can be done much easier.

Global Const $WM_QUERYENDSESSION = 0x0011

GUICreate('')
GUIRegisterMsg($WM_QUERYENDSESSION, 'WM_QUERYENDSESSION')

While 1
    Sleep(1000)
WEnd

Func WM_QUERYENDSESSION($hWnd, $iMsg, $wParam, $lParam)
    ; Do something
    SoundPlay(@WindowsDir & '\media\tada.wav', 1)
    Return 'GUI_RUNDEFMSG'
EndFunc   ;==>WM_QUERYENDSESSION

EDIT:

Add here the previous example for lock the computer (Win-L) and get what you need.

Edited July 4, 2009 by Yashied

[Yashied]

Here is another useful function.

Global Const $DESKTOP_SWITCHDESKTOP = 0x0100

Func _IsWorkstationLocked()

    Local $Result = False

    $hDesktop = DllCall('user32.dll', 'hwnd', 'OpenDesktop', 'str', 'Default', 'int', 0, 'int', 0, 'int', $DESKTOP_SWITCHDESKTOP)
    If Not @error Then
        $Result = DllCall('user32.dll', 'int', 'SwitchDesktop', 'hwnd', $hDesktop[0])
        $Result = Not $Result[0]
        DllCall('user32.dll', 'int', 'CloseDesktop', 'hwnd', $hDesktop[0])
    EndIf
    Return $Result
EndFunc   ;==>_IsWorkstationLocked

[sc4ry]

hey,

i dont get, what these function do =)

but to explain, when i use ctrl+alt+del, not the taskmanager appears, but a windows which name is "window security".

however ... when i catch ctrl+alt+del and set my tel-client to pause, how can i get the "window security" screen?

windows disalow to send ctrl+alt+del by any program. is there a dll call, which can open the window security screen?

[Yashied]

_IsWorkstationLocked() returns True, if the workstation is locked (Win-L), False - otherwise. You can call this function in a loop, and if it returns True, then user pressed the Win-L or has other means, such as CTRL-ALT-DEL - Shut Down - Switch User.

[sc4ry]

ok, thank you, but my problem is, when pc is locked (and i get it via these function), i cannot do the mouseclicks and controlsend to pause the tel-client ;-)

so that seems no option for me?!

but do you know, how i can call the "windows-security" screen, which appears on network-devices, when you push ctrl+alt+del?

[sc4ry]

i read, that windows does not allow to simulate ctrl+alt+del ... but i think that must not needed, because only a dllcall could be used to get the windows-security-screen.

i also use Real VNC and there is the possibility, to send ctrl+alt+del to the host system. so it must be possible =)

please help =)