Casting C# into C++ to cast IntPtr

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Hi,
I m trying to cast few lines of c# code into c++.
m having problem in using

C#

private IntPtr m_hContext = IntPtr.Zero;
IntPtr hContext = Marshal.AllocHGlobal(Marshal.SizeOf(m_hContext));
m_hContext = Marshal.ReadIntPtr(hContext);
Marshal.FreeHGlobal(hContext);

I m unabgle to find its equivalence in c++... Help me out..

Posted 18-May-12 4:16am

Anil Kumar 23

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Comments

Maciej Los 18-May-12 10:44am

Take a look here: Void * To InPtr Conversion[^]

Anil Kumar 23 18-May-12 11:07am

can u give me ny sample code for this???

3 solutions

Solution 3

IntPtr can refer to a conventional pointer of C++, whatever it is : void*, int*, long*, float*, so on.

If you are gonna call a C++ function which returns a pointer or need a referenced pointer parameter,

you surely needs IntPtr in your C# code like you wrote.

Posted 22-May-12 17:34pm

pataoengineer

Solution 1

do you have tried GlobalAlloc() or GlobalHandle()?

Posted 18-May-12 5:16am

Krishna2000

Comments

Anil Kumar 23 18-May-12 11:18am

na i have not ... r u sure it will work in c++

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Volynsky Alex · Accepted Answer · 2012-05-20T08:17:00

Solution 2

Hi Hellexx,
maybe it will help you : http://tangiblesoftwaresolutions.com/Product_Details/CSharp_to_CPlusPlus_Converter_Details.html
You can use the Demo Edition of C++ to C# Converter for folder conversions up to 2000 lines and code snippet conversions up to 200 lines at a time.

Posted 20-May-12 8:17am

Volynsky Alex