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how to call c++ Dll function char* c#

1
-------------------------------------------------------------
C++ Function
int GetResult(char* sIdtype, char* cID, char* cName, int* nResult)
-------------------------------------------------------------

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C# Source
[DllImport("DawinScan.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
private static extern int GetResult(ref string sIdtype , ref string cID, ref string cName, ref int nResult);


GetResult(ref sIdtype, ref cID, ref cName, ref nResult);
this.label1.Text = sIdtype.ToString();
--------------------------------------------------------------


Error GetResult
Mar 15 '17 #1
0 1124

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