VBA解析VBAProject 07——隐藏模块

模块的隐藏看起来好像好高深，其实原理和前面的清除VBAProject工程密码的原理是一样的，只需要改写PROJECT数据流。

不过需要注意的是，类模块不能隐藏，另外还必需要有一个可见的模块，实现代码：

'隐藏某个模块：在VBA工程窗口无法查看
'ModuleName 模块的名称
'Return     返回出错信息
Function HideModule(ModuleName As String) As String
    Dim moduleIndex As Long
    moduleIndex = GetModuleIndex(ModuleName)
    If moduleIndex = -1 Then
        HideModule = "CVBAProject: 在ModuleInfo_中没有找到模块[" & ModuleName & "]"
        Exit Function
    End If
     
    If ModuleInfo_(moduleIndex).IType = ModuleTypeEnum.ClassModule Then
        HideModule = "CVBAProject: 类模块不能隐藏"
        Exit Function
    End If
    
    Dim ret As String
    Dim b() As Byte
    ret = cf.GetStream(PrePath & "PROJECT", b)
    If VBA.Len(ret) Then
        HideModule = ret
        Exit Function
    End If
    
    Dim strSrc As String
    strSrc = VBA.StrConv(b, vbUnicode)
    If VBA.InStr(strSrc, "Module=" & ModuleName & vbNewLine) = 0 Then
        HideModule = "CVBAProject: 模块[" & ModuleName & "]已隐藏"
        Exit Function
    End If
    
    strSrc = VBA.Replace(strSrc, "Module=" & ModuleName & vbNewLine, "")
    
    b = VBA.StrConv(strSrc, vbFromUnicode)
    
    ret = cf.ReWriteStream(PrePath & "PROJECT", b)
    If VBA.Len(ret) Then
        HideModule = ret
        Exit Function
    End If
End Function

'取消隐藏某个模块
'ModuleName 模块的名称
'Return     返回出错信息
Function UnHideModule(ModuleName As String) As String
    Dim moduleIndex As Long
    moduleIndex = GetModuleIndex(ModuleName)
    If moduleIndex = -1 Then
        UnHideModule = "CVBAProject: 在ModuleInfo_中没有找到模块[" & ModuleName & "]"
        Exit Function
    End If
     
    If ModuleInfo_(moduleIndex).IType = ModuleTypeEnum.ClassModule Then
        UnHideModule = "CVBAProject: 类模块不能隐藏"
        Exit Function
    End If
    
    Dim ret As String
    Dim b() As Byte
    ret = cf.GetStream(PrePath & "PROJECT", b)
    If VBA.Len(ret) Then
        UnHideModule = ret
        Exit Function
    End If
    
    Dim strSrc As String
    strSrc = VBA.StrConv(b, vbUnicode)
    If VBA.InStr(strSrc, "Module=" & ModuleName & vbNewLine) Then
        UnHideModule = "CVBAProject: 模块[" & ModuleName & "]未隐藏"
        Exit Function
    End If
    
    'HelpFile="" 在这个前面添加 Module=moduleNameODOA
    strSrc = VBA.Replace(strSrc, "HelpFile=""""", "Module=" & ModuleName & vbNewLine & "HelpFile=""""")
    b = VBA.StrConv(strSrc, vbFromUnicode)
    
    ret = cf.ReWriteStream(PrePath & "PROJECT", b)
    If VBA.Len(ret) Then
        UnHideModule = ret
        Exit Function
    End If
End Function