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Passing structure from Managed C++ to C#,

Hi,

i am new bie to managed C++ , i have an C# DLL , which i need to invoke from managed C++ and pass a structure as a parameter , Can any one help me out on this issue...



Thanks in advance...
Jan 21 '08 #1
2 3761
weaknessforcats
9,208 Expert Mod 8TB
You will need to read the interoperability pages in MSDN.
Jan 21 '08 #2
Hi All,

I have found the solution for this problem , the simplest way of passing structure from Managed C++ to C# is ..



Eg:

In MC++

public struct xyz

{

public:

int x;

int y;

};



Method in MC++ invoking C# Method say

...............

..............

CsharpDLLNamespace::CSharpeClass^ ObjectofSharpMethod= gcnew CsharpDLLNamespace::CSharpeClass();



xyz obj;

obj.x = 10 ;

obj.y = 20 ;

ObjectofSharpMethod>CsharpMethod((System::IntPtr)& obj);



In C#



[StructLayout(LayoutKind.Sequential, Pack = 2)]

public class xyz

{

public int x;

public int y;

}



public void CsharpMethod(IntPtr pob )

{

xyz obj = new xyz();

Marshal.PtrToStructure(pob, obj);

Console.WriteLine("Converted Successfully" + "x : " + obj.x+ "y :" + obj.y);

}
Jan 23 '08 #3

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