[英]What is the "Type Mismatch Error" I am getting here?
我在这个特定的 VBA 代码中遇到类型不匹配错误,我正在使用 64 位 VBA 但它是为 32 位开发的。 任何解决方案,我是 VBA 的新手,我无法弄清楚。 它在 VarPtr 中显示错误(Public Fuction Hook() As boolean)。 我在下面添加代码
Option Explicit
Private Const PAGE_EXECUTE_READWRITE = &H40
Private Declare PtrSafe Sub MoveMemory Lib "kernel32" Alias "RtlMoveMemory" _
(Destination As Long, Source As Long, ByVal Length As Long)
Private Declare PtrSafe Function VirtualProtect Lib "kernel32" (lpAddress As Long, _
ByVal dwSize As Long, ByVal flNewProtect As Long, lpflOldProtect As Long) As Long
Private Declare PtrSafe Function GetModuleHandleA Lib "kernel32" (ByVal lpModuleName As String) As Long
Private Declare PtrSafe Function GetProcAddress Lib "kernel32" (ByVal hModule As Long, _
ByVal lpProcName As String) As Long
Private Declare PtrSafe Function DialogBoxParam Lib "User32" Alias "DialogBoxParamA" (ByVal hInstance As Long, _
ByVal pTemplateName As Long, ByVal hWndParent As Long, _
ByVal lpDialogFunc As Long, ByVal dwInitParam As Long) As Integer
Dim HookBytes(0 To 5) As Byte
Dim OriginBytes(0 To 5) As Byte
Dim pFunc As Long
Dim Flag As Boolean
Private Function GetPtr(ByVal Value As Long) As Long
GetPtr = Value
End Function
Public Sub RecoverBytes()
If Flag Then MoveMemory ByVal pFunc, ByVal VarPtr(OriginBytes(0)), 6
End Sub
Public Function Hook() As Boolean
Dim TmpBytes(0 To 5) As Byte
Dim p As Long
Dim OriginProtect As Long
Hook = False
pFunc = GetProcAddress(GetModuleHandleA("user32.dll"), "DialogBoxParamA")
If VirtualProtect(ByVal pFunc, 6, PAGE_EXECUTE_READWRITE, OriginProtect) <> 0 Then
MoveMemory ByVal VarPtr(TmpBytes(0)), ByVal pFunc, 6
If TmpBytes(0) <> &H68 Then
MoveMemory ByVal VarPtr(OriginBytes(0)), ByVal pFunc, 6
p = GetPtr(AddressOf MyDialogBoxParam)
HookBytes(0) = &H68
MoveMemory ByVal VarPtr(HookBytes(1)), ByVal VarPtr(p), 4
HookBytes(5) = &HC3
MoveMemory ByVal pFunc, ByVal VarPtr(HookBytes(0)), 6
Flag = True
Hook = True
End If
End If
End Function
Varptr 将在 64 位 Excel 上返回“LongPtr”,在 32 位 Excel 上返回“Long”。 您的 api 声明都使用“Long”,这在 VarPtr 将返回 Long 的 32 位世界中很好,但在 VarPtr 返回 LongPtr 的 64 位 excel 中则不行。 您需要更新您的 api 声明以使用 LongPtr 而不是 Long 用于 64 位。 API 调用之一的示例如下:
#If VBA7 Then
Declare PtrSafe Sub CopyMemory Lib "kernel32.dll" Alias _
"RtlMoveMemory" (ByRef Destination As LongPtr, ByRef Source As LongPtr, _
ByVal Length As LongPtr)
#Else
Declare PtrSafe Sub CopyMemory Lib "kernel32.dll" Alias _
"RtlMoveMemory" (Destination As Long, Source As Long, _
ByVal Length As Long)
#End If
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