VBA Excel WideCharToMultiByte Compile error on 64-bit System
Compile Error:
The code in this project must be updated for use on64-bit systems.
Please review and update Declare statements and then mark them with the PtrSafe attribute.
1.问题:
32-bit的VBA程序,在64-bit系统上运行时,出现该编译错误。
环境:Office2010 Excel 64-bit, 64-bit Win7 OS
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2.原因
原程序中,函数声明如下。该函数在32-bit系统中编译、运行没有问题。但是在64-bit系统中会出现编译错误。
Private Declare Function WideCharToMultiByte Lib "kernel32" _
(ByVal CodePage As Long, ByVal dwFlags As Long, lpWideCharStr As Integer, ByVal cchWideChar As Long, _
lpMultiByteStr As Byte, ByVal cchMultiByte As Long, ByVal lpDefaultChar As String, ByVal lpUsedDefaultChar As Long) As Long
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3.修改
其实,提示信息中,已经说明的很清楚了。
只要在函数的声明处添加"PtrSafe"属性(无需修改其他地方),程序就正常了。
修改后程序:
Private Declare PtrSafe Function WideCharToMultiByte Lib "kernel32" _
(ByVal CodePage As Long, ByVal dwFlags As Long, lpWideCharStr As Integer, ByVal cchWideChar As Long, _
lpMultiByteStr As Byte, ByVal cchMultiByte As Long, ByVal lpDefaultChar As String, ByVal lpUsedDefaultChar As Long) As Long
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4.扩展
①PtrSafe<Keyword>
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