protected override void DoRelease()
{
if (_root != null)
{
uint res = MAPI.MAPIFreeBuffer(_root.ptr);
if (res != 0)
{
// TODO: log?
}
_root = null;
}
}
private IntPtr AllocateRaw(int size)
{
IntPtr res;
IntPtr ptr = IntPtr.Zero;
if (_root == null)
{
res = MAPI.MAPIAllocateBuffer((uint)size, ref ptr);
}
else
{
res = MAPI.MAPIAllocateMore((uint)size, _root.ptr, ref ptr);
}
if (res != IntPtr.Zero)
{
throw new InvalidOperationException("MAPI Allocation failed: " + res);
}
// Zero it out to prevent issues
Kernel32.ZeroMemory(ptr, size);
return(ptr);
}