代码在64位Office上不起作用
我应该找出在64位系统上与Excel VBA代码兼容性的问题。 我不使用VB语言，下面的代码不是我的，但我必须解决这个问题。
Excel VB代码：
Option Explicit Private Declare Function WideCharToMultiByte Lib "kernel32.dll" (ByVal CodePage As Long, ByVal dwFlags As Long, ByVal lpWideCharStr As Long, ByVal cchWideChar As Long, ByRef lpMultiByteStr As Byte, ByVal cchMultiByte As Long, ByVal lpDefaultChar As String, ByRef lpUsedDefaultChar As Long) As Long Private Const CP_UTF8 As Long = 65001 Private Const ERROR_INSUFFICIENT_BUFFER As Long = 122& Public Function ToUTF8(s As String) As Byte() If Len(s) = 0 Then Exit Function Dim ccb As Long ccb = WideCharToMultiByte(CP_UTF8, 0, StrPtr(s), Len(s), ByVal 0&, 0, vbNullString, ByVal 0&) If ccb = 0 Then Err.Raise 5, , "Internal error." End If Dim b() As Byte ReDim b(1 To ccb) If WideCharToMultiByte(CP_UTF8, 0, StrPtr(s), Len(s), b(LBound(b)), ccb, vbNullString, ByVal 0&) = 0 Then Err.Raise 5, , "Internal error." Else ToUTF8 = b End If End Function 我试图添加条件＃ #If VBA7和PtrSave到处，但工作表仍然无法正常工作。
这是我在Office 64 Bit中尝试的代码
Option Explicit #If VBA7 Then Private Declare PtrSafe Function WideCharToMultiByte Lib "kernel32" (ByVal CodePage As Integer, ByVal dwFlags As Long, ByVal lpWideCharStr As LongPtr, ByVal cchWideChar As Long, ByVal lpMultiByteStr As Long, ByVal cchMultiByte As LongPtr, ByVal lpDefaultChar As Long, ByVal lpUsedDefaultChar As Long) As LongPtr #Else Private Declare Function WideCharToMultiByte Lib "kernel32.dll" (ByVal CodePage As Long, ByVal dwFlags As Long, ByVal lpWideCharStr As Long, ByVal cchWideChar As Long, ByRef lpMultiByteStr As Byte, ByVal cchMultiByte As Long, ByVal lpDefaultChar As String, ByRef lpUsedDefaultChar As Long) As Long #EndIf Private Const CP_UTF8 As Long = 65001 Private Const ERROR_INSUFFICIENT_BUFFER As Long = 122& Public Function ToUTF8(s As String) As Byte() If Len(s) = 0 Then Exit Function Dim ccb As LongPtr ccb = WideCharToMultiByte(CP_UTF8, 0, StrPtr(s), Len(s), ByVal 0&, 0, vbNullString, ByVal 0&) If ccb = 0 Then Err.Raise 5, , "Internal error." End If Dim b() As Byte ReDim b(1 To ccb) // ERROR TYPE MISMATCH on ccb If WideCharToMultiByte(CP_UTF8, 0, StrPtr(s), Len(s), b(LBound(b)), ccb, vbNullString, ByVal 0&) = 0 Then Err.Raise 5, , "Internal error." Else ToUTF8 = b End If End Function
感谢帮助。
（未testing）
更改
这个
Private Declare PtrSafe Function WideCharToMultiByte Lib "kernel32" _ (ByVal CodePage As Integer, ByVal dwFlags As Long, ByVal lpWideCharStr _ As LongPtr, ByVal cchWideChar As Long, ByVal lpMultiByteStr As Long, _ ByVal cchMultiByte As LongPtr, ByVal lpDefaultChar As Long, _ ByVal lpUsedDefaultChar As Long) As LongPtr
至
Private Declare PtrSafe Function WideCharToMultiByte Lib "Kernel32" ( _ ByVal CodePage As LongPtr, ByVal dwflags As LongPtr, _ ByVal lpWideCharStr As LongPtr, ByVal cchWideChar As LongPtr, _ ByVal lpMultiByteStr As LongPtr, ByVal cchMultiByte As LongPtr, _ ByVal lpDefaultChar As LongPtr, ByVal lpUsedDefaultChar As LongPtr) As LongPtr
这个
Private Const CP_UTF8 As Long = 65001
至
Private Const CP_UTF8 = 65001
这个
Private Const ERROR_INSUFFICIENT_BUFFER As Long = 122&
至
Private Const ERROR_INSUFFICIENT_BUFFER = 122&
这个
Dim ccb As LongPtr
至
Dim ccb As Variant
在我build议的最后三个章节中，我们将它们声明为变体，因为我们不知道在不同系统上的types是什么。 它可以是Long或LongPtr