array <Byte>^ to unsigned char*

[zon7mail]

I've two functions. One is managed and receives an array, and the other
is unmanaged and receives a pointer, just like this
class A
{
int Foo(unsigned char* m){};
...
}

ref class B
{
int Boo(array< Byte >^ n){};
...
}

Is there anyway to call the function Foo from Boo passing n directly?

[Carl Daniel [VC++ MVP]]

zo******@gmail. com wrote:

I've two functions. One is managed and receives an array, and the
other is unmanaged and receives a pointer, just like this
class A
{
int Foo(unsigned char* m){};
...
}

ref class B
{
int Boo(array< Byte >^ n){};
...
}

Is there anyway to call the function Foo from Boo passing n directly?

Yes. Get a pin_ptr<Bytetha t references the first byte of n and pass it to
Foo

using namespace System;

struct A
{
int Foo(unsigned char* m)
{
return *m;
}
};

ref class B
{
A* m_pA;
int Boo(array< Byte >^ n)
{
pin_ptr<unsigne d charpn = &n[0];
return m_pA->Foo(pn);
}
};

-cd

[Barry Kelly]

zo******@gmail. com wrote:

I've two functions. One is managed and receives an array, and the other
is unmanaged and receives a pointer, just like this
class A
{
int Foo(unsigned char* m){};
...
}

ref class B
{
int Boo(array< Byte >^ n){};
...
}

Is there anyway to call the function Foo from Boo passing n directly?

http://www.google.com/search?q=how+t...+to+byte+array

-- Barry

--
http://barrkel.blogspot.com/

[Paul E Collins]

zo******@gmail. com wrote:

int Boo(array< Byte >^ n){};

Can someone tell me what this ^ means? I'm still using the C# 1.x
compiler (occasionally 2.x) and I only know ^ as the exclusive-or
operator.

Eq.

[Carl Daniel [VC++ MVP]]

Paul E Collins wrote:

zo******@gmail. com wrote:

>int Boo(array< Byte >^ n){};

Can someone tell me what this ^ means? I'm still using the C# 1.x
compiler (occasionally 2.x) and I only know ^ as the exclusive-or
operator.

This questsion was misposted - it's about C++/CLI, where the ^ operator is
used to derefence a "tracking pointer". It's roughly analogous to the '.'
in C# between an object reference and a member name.

-cd