Using SetWindowsHookEx. in Excel 2010 - vba

Question

This function is getting me crazy! I am trying to use SetWindwosHookEx to avoid some keystrokes from the user, but I can't make it work properly.
I have been looking around many code on the web but I don't understand why it is not working for me. Firstly, it was because I was using Excel 2010 (64 bit) and my code wasn't for it, but now I don't know.
Basically, I have created a simple code which shows me a message when I pull "g" but what it is happening is Excel crashes when a pull any key. It doesn't crash when I run the code step by step but if I pull "g" the message appears three times!
This is my code:
#If Win64 Then
Public Declare PtrSafe Function UnhookWindowsHookEx Lib "user32" (ByVal hHook As LongPtr) As LongPtr
Public Declare PtrSafe Function SetWindowsHookEx Lib "user32" Alias "SetWindowsHookExA" (ByVal idHook As LongPtr, ByVal lpFn As LongPtr, ByVal hmod As LongPtr, ByVal dwThreadId As LongPtr) As LongPrt
Public Declare PtrSafe Function CallNextHookEx Lib "user32" (ByVal hHook As LongPtr, ByVal nCode As LongPtr, ByVal wParam As LongPtr, lParam As Any) As LongPtr
Public Declare PtrSafe Function GetModuleHandle Lib "kernel32" Alias "GetModuleHandleA" (ByVal lpModuleName As String) As LongPtr
Public Declare PtrSafe Function GetCurrentThreadId Lib "kernel32" () As LongPtr
Public Declare PtrSafe Function GetKeyState Lib "user32" (ByVal nVirtKey As LongPtr) As Integer
Private hWndPPT As LongPtr
Private HookHandle As LongPtr
'ADICIONAL
Private Declare Function SendDlgItemMessage Lib "user32" Alias "SendDlgItemMessageA" (ByVal hDlg As LongPrt, ByVal nIDDlgItem As LongPtr, ByVal wMsg As LongPtr, ByVal wParam As LongPtr, ByVal lParam As LongPtr) As LongPtr
Private Declare Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hwnd As LongPtr, ByVal lpClassName As String, ByVal nMaxCount As LongPtr) As LongPtr
#Else
Public Declare Function UnhookWindowsHookEx Lib "user32" (ByVal hHook As Long) As Long
Public Declare Function SetWindowsHookEx Lib "user32" Alias "SetWindowsHookExA" (ByVal idHook As Long, ByVal lpFn As Long, ByVal hmod As Long, ByVal dwThreadId As Long) As Long
Public Declare Function CallNextHookEx Lib "user32" (ByVal hHook As Long, ByVal nCode As Long, ByVal wParam As Long, lParam As Any) As Long
Public Declare Function GetModuleHandle Lib "kernel32" Alias "GetModuleHandleA" (ByVal lpModuleName As String) As Long
Public Declare Function GetCurrentThreadId Lib "kernel32" () As Long
Public Declare Function GetKeyState Lib "user32" (ByVal nVirtKey As Long) As Integer
Private hWndPPT As Long
Private HookHandle As Long
'ADICIONAL
Private Declare Function SendDlgItemMessage Lib "user32" Alias "SendDlgItemMessageA" (ByVal hDlg As Long, ByVal nIDDlgItem As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Private Declare Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hwnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long
#End If
'Constants to be used in our API functions
'Private Const EM_SETPASSWORDCHAR = &HCC
'Private Const WH_CBT = 5
Private Const WH_KEYBOARD = 2
'Private Const HCBT_ACTIVATE = 5
Private Const HC_ACTION = 0
'Private hHook As Long
Public Sub RemoveHook()
UnhookWindowsHookEx (HookHandle)
End Sub
Sub SetHook()
#If Win64 Then
Dim lThreadID As LongPtr
Dim lngModHwnd As LongPtr
#Else
Dim lThreadID As Long
Dim lngModHwnd As Long
#End If
lThreadID = GetCurrentThreadId
lngModHwnd = GetModuleHandle(vbNullString)
'Set a local hook
HookHandle = SetWindowsHookEx(WH_KEYBOARD, AddressOf NewProc, 0, lThreadID)
End Sub
Public Function NewProc(ByVal lngCode As LongPtr, ByVal wParam As LongPtr, ByVal lParam As LongPtr) As LongPtr
If lngCode < HC_ACTION Then
NewProc = CallNextHookEx(HookHandle, lngCode, wParam, lParam)
Exit Function
End If
If wParam = 71 Then
'MsgBox "g"
'NewProc = 1
wParam = 70
'Exit Function
End If
'This line will ensure that any other hooks that may be in place are
'called correctly.
CallNextHookEx HookHandle, lngCode, wParam, lParam
End Function

Answer 1

The correct declarations for 64bit would be:
Public Declare PtrSafe Function UnhookWindowsHookEx Lib "user32" (ByVal hHook As LongPtr) As Long
Public Declare PtrSafe Function SetWindowsHookEx Lib "user32" Alias "SetWindowsHookExA" (ByVal idHook As Long, ByVal lpFn As LongPtr, ByVal hmod As LongPtr, ByVal dwThreadId As Long) As LongPtr
Public Declare PtrSafe Function CallNextHookEx Lib "user32" (ByVal hHook As LongPtr, ByVal nCode As Long, ByVal wParam As LongPtr, lParam As Any) As LongPtr
Public Declare PtrSafe Function GetModuleHandle Lib "kernel32" Alias "GetModuleHandleA" (ByVal lpModuleName As String) As LongPtr
Public Declare PtrSafe Function GetCurrentThreadId Lib "kernel32" () As Long
Public Declare PtrSafe Function GetKeyState Lib "user32" (ByVal nVirtKey As Long) As Integer
Private Declare PtrSafe Function SendDlgItemMessage Lib "user32" Alias "SendDlgItemMessageA" (ByVal hDlg As LongPtr, ByVal nIDDlgItem As Long, ByVal wMsg As Long, ByVal wParam As LongPtr, ByVal lParam As LongPtr) As LongPtr
Private Declare PtrSafe Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hwnd As LongPtr, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long
I can't actually see how the code you posted would run at all on 64bit.