au3能拦截WIN键却不能拦截CTRL键

itljl

以下上P版的代码，能拦截WIN键。试过改键值，但不能拦截CTRL，ALT这些键。。是不是还要经过其它特殊处理？

#include <WinAPI.au3>
#include <WindowsConstants.au3>
#include <StructureConstants.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>

Opt('MustDeclareVars', 1)

Global $hHook, $hStub_KeyProc, $buf = "", $title = "", $title_1 = "", $keycode, $buffer = "", $nMsg

Local $hmod
$hStub_KeyProc = DllCallbackRegister("_KeyProc", "long", "int;wparam;lparam")
$hmod = _WinAPI_GetModuleHandle(0)
$hHook = _WinAPI_SetWindowsHookEx($WH_KEYBOARD_LL, DllCallbackGetPtr($hStub_KeyProc), $hmod)
While 1
 Sleep(1)
WEnd

Func _KeyProc($nCode, $wParam, $lParam)
 Local $tKEYHOOKS, $wVKey
 $tKEYHOOKS = DllStructCreate($tagKBDLLHOOKSTRUCT, $lParam)
 If $nCode < 0 Then
 Return _WinAPI_CallNextHookEx($hHook, $nCode, $wParam, $lParam)
 EndIf
 $wVKey = DllStructGetData($tKEYHOOKS, "vkCode")
 If ($wVKey = 91) Then ;这里用的是asi2码
 If ($wParam = $WM_KEYDOWN) Then
 ToolTip("{win} was pressed.")
 Return 1
 ElseIf ($wParam = $WM_KEYUP) Then
 ToolTip("{win} was released.")
 EndIf
 EndIf
 Return _WinAPI_CallNextHookEx($hHook, $nCode, $wParam, $lParam)
EndFunc ;==>_KeyProc

Func _exit()
 _WinAPI_UnhookWindowsHookEx($hHook)
 DllCallbackFree($hStub_KeyProc)
 Exit
EndFunc ;==>_exit