VC++.NET : String to char * and vice versa & Non .NET classes

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Frank R Eid - 17 Mar 2005 19:17 GMT

Hi all;

A) What's the simplest way to convert a 'String' to 'char *' (and the other
way araound) ?

B) I have some C++ classes that I cannot easily convert to .NET (because
they still are to be used in non-.NET apps). Are there any critical issues
why i cannot use these 'as is' in my .NET app (beside of the 'new' and
'delete' of them to 'manually' maintain memory) ?

---------------
Frank R Eid, Norway

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Fredrik Wahlgren - 18 Mar 2005 22:07 GMT

> Hi all;
>
[quoted text clipped - 8 lines]
> ---------------
> Frank R Eid, Norway

A) Snipped from
http://msdn.microsoft.com/msdnmag/issues/02/02/managedc/default.aspx
void MarshalString ( System::String* s, std::string& os )
{
using namespace System::Runtime::InteropServices;
const char* chars =
(const char*)(Marshal::StringToHGlobalAnsi(s)).ToPointer();
os = chars;
Marshal::FreeHGlobal(IntPtr((void*)chars));
}
void MarshalString ( System::String* s, std::wstring& os )
{
using namespace System::Runtime::InteropServices;
const wchar_t* chars =
(const wchar_t*)(Marshal::StringToHGlobalUni(s)).ToPointer();
os = chars;
Marshal::FreeHGlobal(IntPtr((void*)chars));
}B) I have no idea./Fredrik

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VC++.NET : String to char * and vice versa & Non .NET classes

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