VB6将UTF8格式字符串写入ini
时间: 2023-09-19 17:09:26 浏览: 54
文件的代码应该如何实现?
对于VB6,它本身不支持UTF8编码,但我们可以利用Windows API函数实现UTF8转换并写入ini文件。具体实现方式如下:
1.首先在模块中添加下面这个声明:
```
Public Declare Function WideCharToMultiByte Lib "kernel32" (ByVal CodePage As Long, ByVal dwFlags As Long, ByVal lpWideCharStr As Long, ByVal cchWideChar As Long, ByVal lpMultiByteStr As Long, ByVal cbMultiByte As Long, ByVal lpDefaultChar As Long, ByVal lpUsedDefaultChar As Long) As Long
```
2.然后使用下面这段代码将UTF8字符串转化为多字节字符集(如GBK):
```
Private Function UTF8ToGBK(ByVal sText As String) As String
Dim nLen1 As Long
Dim nLen2 As Long
Dim abBuffer() As Byte
Dim nCount As Long
nLen1 = Len(sText)
nLen2 = WideCharToMultiByte(&H0, &H0, StrPtr(sText), nLen1, 0, 0, 0, 0) '得到缓冲区大小
ReDim abBuffer(nLen2 - 1) As Byte
nCount = WideCharToMultiByte(&H0, &H0, StrPtr(sText), nLen1, VarPtr(abBuffer(0)), nLen2, 0, 0) '转换为多字节字符集
If nCount > 0 Then
UTF8ToGBK = abBuffer
Else
UTF8ToGBK = ""
End If
End Function
```
3.在写入ini文件时,将需要写入的字符串先转换成多字节字符集(如GBK)再写入,代码如下:
```
Private Declare Function WritePrivateProfileString Lib "kernel32" Alias "WritePrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As Any, ByVal lpString As Any, ByVal lpFileName As String) As Long
'main code
Dim strText As String
Dim strFilename As String
Dim strGBKText As String
strText = "你好,世界!"
strFilename = App.Path & "\test.ini"
strGBKText = UTF8ToGBK(strText) '将UTF8字符串转换为GBK
WritePrivateProfileString "Section", "Key", strGBKText, strFilename '写入ini文件
```
这样就可以将UTF8格式的字符串写入ini文件中了。