Removes a hook procedure installed in a hook chain by the _WinAPI_SetWindowsHookEx function
#include <WinAPISys.au3>
_WinAPI_UnhookWindowsHookEx ( $hHook )
| $hHook | Handle to the hook to be removed |
| Success: | True |
| Failure: | False, call _WinAPI_GetLastError() to get extended error information |
Search UnhookWindowsHookEx in MSDN Library.
#include <MsgBoxConstants.au3>
#include <StructureConstants.au3>
#include <WinAPIConstants.au3>
#include <WinAPISys.au3>
#include <WindowsConstants.au3>
Global $g_hHook, $g_hStub_KeyProc, $g_sBuffer = ""
Example()
Func Example()
OnAutoItExitRegister("Cleanup")
Local $hMod
$g_hStub_KeyProc = DllCallbackRegister("_KeyProc", "long", "int;wparam;lparam")
$hMod = _WinAPI_GetModuleHandle(0)
$g_hHook = _WinAPI_SetWindowsHookEx($WH_KEYBOARD_LL, DllCallbackGetPtr($g_hStub_KeyProc), $hMod)
MsgBox($MB_SYSTEMMODAL, "", "Click OK, then in notepad type..." & _
@CRLF & @CRLF & "Jon" & @CRLF & "AutoIt" & @CRLF & @CRLF & "Press Esc to exit script")
Run("notepad.exe")
WinWait("[CLASS:Notepad]")
WinActivate("[CLASS:Notepad]")
While 1
Sleep(10)
WEnd
EndFunc ;==>Example
Func EvaluateKey($iKeycode)
If (($iKeycode > 64) And ($iKeycode < 91)) _ ; a - z
Or (($iKeycode > 96) And ($iKeycode < 123)) _ ; A - Z
Or (($iKeycode > 47) And ($iKeycode < 58)) Then ; 0 - 9
$g_sBuffer &= Chr($iKeycode)
Switch $g_sBuffer
Case "Jon"
ToolTip("What can you say?")
Case "AutoIt"
ToolTip("AutoIt Rocks")
EndSwitch
ElseIf ($iKeycode > 159) And ($iKeycode < 164) Then
Return
ElseIf ($iKeycode = 27) Then ; esc key
Exit
Else
$g_sBuffer = ""
EndIf
EndFunc ;==>EvaluateKey
; ===========================================================
; callback function
; ===========================================================
Func _KeyProc($nCode, $wParam, $lParam)
Local $tKEYHOOKS
$tKEYHOOKS = DllStructCreate($tagKBDLLHOOKSTRUCT, $lParam)
If $nCode < 0 Then
Return _WinAPI_CallNextHookEx($g_hHook, $nCode, $wParam, $lParam)
EndIf
If $wParam = $WM_KEYDOWN Then
EvaluateKey(DllStructGetData($tKEYHOOKS, "vkCode"))
Else
Local $iFlags = DllStructGetData($tKEYHOOKS, "flags")
Switch $iFlags
Case $LLKHF_ALTDOWN
ConsoleWrite("$LLKHF_ALTDOWN" & @CRLF)
Case $LLKHF_EXTENDED
ConsoleWrite("$LLKHF_EXTENDED" & @CRLF)
Case $LLKHF_INJECTED
ConsoleWrite("$LLKHF_INJECTED" & @CRLF)
Case $LLKHF_UP
ConsoleWrite("$LLKHF_UP: scanCode - " & DllStructGetData($tKEYHOOKS, "scanCode") & @TAB & "vkCode - " & DllStructGetData($tKEYHOOKS, "vkCode") & @CRLF)
EndSwitch
EndIf
Return _WinAPI_CallNextHookEx($g_hHook, $nCode, $wParam, $lParam)
EndFunc ;==>_KeyProc
Func Cleanup()
_WinAPI_UnhookWindowsHookEx($g_hHook)
DllCallbackFree($g_hStub_KeyProc)
EndFunc ;==>Cleanup