2013/8/1 Nozomi Kodama <nozomi.kodama@yahoo.com>:
>

+    vertices = HeapAlloc(GetProcessHeap(), 0, 2 * (sides + 1) *
sizeof(D3DXVECTOR3));
+    if (!vertices)
+    {
+        TRACE("Not memory enough for vertex buffer\n");
+        polygon->lpVtbl->Release(polygon);
+        return E_OUTOFMEMORY;
+    }
+
+    hr = polygon->lpVtbl->LockVertexBuffer(polygon, D3DLOCK_DISCARD,
(VOID **)&vertices);

Why are you allocating memory and immediately dropping track of it?
Recheck how ID3DXMesh::LockVertexBuffer works.

It is a leftover of my tests about the requested size of the buffer :( ....

Also I'm having a deja-vu here, this patch looks suspiciously similar
(up to having this same issue) to one I've already reviewed in the
past.
I don't understand what you mean here. Can you tell more?

I send a newer version. This one should be fine.

Nozomi.