解決：對 PInvoke 函數的調用導致堆棧不對稱問題

問題描述：

       在使用託管代碼調用非託管代碼時，發生“對 PInvoke 函數“UseTwiHikVisionDllTest!UseTwiHikVisionDllTest.TwiHikVision::GetFirstPic”的調用導致堆棧不對稱。原因可能是託管的 PInvoke 簽名與非託管的目標籤名不匹配。請檢查 PInvoke 簽名的調用約定和參數與非託管的目標籤名是否匹配。”

解決方法：

     添加屬性:CallingConvention=CallingConvention.Cdecl

如：

        [DllImport("TwiHikVision.dll", EntryPoint="GetFirstPic",CallingConvention=CallingConvention.Cdecl)]

        public static extern string GetFirstPic(string videoFileName, string exportFilePath);

 

 

 

網絡參考可能原因：

http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/b0637998-dc89-4ff9-b59d-5ad262a48bc6

You need to set the calling convention. The default convention (stdcall) is not correct, which will cause P/Invoke stack imbalances.

For example, your first call should look like:

[DllImport("Service.dll", CallingConvention=CallingConvention.Cdecl)]  static private extern IntPtr CallCreateClass();

By default, C and C++ use cdecl - but marshalling uses stdcall to match the Windows API.