C#调用C++DLL 调用的时候报-14

Question

[DllImport(@"C:\Windows\System32\SSSE32.dll", EntryPoint = "ICC_Reader_Open",
CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
// 打开设备
public static extern Int32 ICC_Reader_Open(string ReaderHandle);

    [DllImport(@"C:\Windows\System32\SSSE32.dll", EntryPoint = "ICC_Reader_Close", 
    CharSet = CharSet.Auto,  CallingConvention = CallingConvention.StdCall)]
    //说明：    关闭通讯口
    public static extern Int32 ICC_Reader_Close(long ReaderHandle);

Answer 1

需要根据文档查询-14错误码对应的错误原因等来分析