如何删除dllimport的默认搜索路径

时间:2019-07-06 03:20:33

标签: vb.net dllimport

我正在使用多个具有相同名称的DLL,并且在使用dllimport时,我只希望有一个路径来搜索DLL。

到目前为止,我的代码:

    'Trying to remove default search paths    
    <System.AttributeUsage(System.AttributeTargets.Assembly Or System.AttributeTargets.Method, AllowMultiple:=False)>
        Public NotInheritable Class DefaultDllImportSearchPathsAttribute
            Inherits Attribute
        End Class

        'Trying to add my own path
        <DllImport("kernel32.dll", SetLastError:=True, CharSet:=CharSet.Auto)>
        Public Shared Function SetDllDirectory(ByVal lpPathName As String) As Long
        End Function

    'Importing my DLL
        <DllImport("A.dll", CallingConvention:=CallingConvention.StdCall)>
        Public Shared Sub B(<MarshalAs(UnmanagedType.BStr)> ByRef X As String)

        End Sub

    Dim path As String = My.Computer.Registry.GetValue("HKEY_CURRENT_USER\Software\A\", "path", Nothing)

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
            SetDllDirectory(path)
    End Sub

它会不断加载另一个DLL,并且永远不会到达在“路径”中搜索DLL的阶段。我该如何工作?

参考: How can I specify a [DllImport] path at runtime?

1 个答案:

答案 0 :(得分:0)

如果您知道DLL的完整路径,则通过传递完整路径的对yarn test的调用来显式加载它。如果在从该DLL调用任何pinvoke函数之前执行此操作,则系统将使用您显式加载的DLL。