Creating a HANDLE[] in a managed class

[Jon]

Hi

I've created a HANDLE[] in a managed class:

pHandle = new HANDLE[2];

where pHandle is HANDLE* defined in my __gc class

Is this an unamanged or a managed pointer? I would have thought it would be
unmanaged but I can __pin it, which implies it is managed.

Help appreciated.

Thanks

Jon

[Tomas Restrepo \(MVP\)]

Jon,

I've created a HANDLE[] in a managed class:

pHandle = new HANDLE[2];

where pHandle is HANDLE* defined in my __gc class

Is this an unamanged or a managed pointer? I would have thought it would be unmanaged but I can __pin it, which implies it is managed.

That depends on how you look at it:
The memory referenced by pHandle is *unmanaged*, since it is stored in the
CRT heap. However, the memory pHandle itself is stored is actually in the GC
heap, since it is part of a reference object.

If you needed to pass &pHandle to an unmanaged function, then you'd
certainly need to pin it first...

--
Tomas Restrepo
to****@mvps.org

[Jon]

Thanks Tomas

.......question answered perfectly. The light is now on!

Jon

"Tomas Restrepo (MVP)" wrote:

Jon,

I've created a HANDLE[] in a managed class:

pHandle = new HANDLE[2];

where pHandle is HANDLE* defined in my __gc class

Is this an unamanged or a managed pointer? I would have thought it would

be

unmanaged but I can __pin it, which implies it is managed.

That depends on how you look at it:
The memory referenced by pHandle is *unmanaged*, since it is stored in the
CRT heap. However, the memory pHandle itself is stored is actually in the GC
heap, since it is part of a reference object.

If you needed to pass &pHandle to an unmanaged function, then you'd
certainly need to pin it first...

--
Tomas Restrepo
to****@mvps.org