How to use a pointer parameter of a function from C++ dll in C#?

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I have C++ dll project (Win32 dll) which contains a function:

C++

int _stdcall abc(int* a)
{
       for (int i=0; i<5; i++)
            a[i]=i;
       return 0;
}

I compile it to a dll file (the abc() is exported) called "xy.dll".
I want to use "xy.dll" with abc() function in C#, how to use this function in C#? Thanks.

Posted 11-Sep-12 17:10pm

Andrewpeter

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2 solutions

Solution 1

C#

public int abc (int[] a)
{
      for (int i = 0; i < 5; i++)
           a[i] = i;
      return 0;
}

Posted 11-Sep-12 17:19pm

mamali

Comments

Andrewpeter 11-Sep-12 23:22pm

No, the abc() function is in "xy.dll" which is built by C++ language, I want to call that function from C#.

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Andrewpeter · Accepted Answer · 2012-09-11T17:45:00

Solution 2

Oh, I found my solution: http://msdn.microsoft.com/en-us/library/aa446538.aspx#netcfmarshallingtypes_topic5[^]

Posted 11-Sep-12 17:45pm

Andrewpeter

v2