Or perhaps use GC.KeepAlive On Mon, Nov 1, 2010 at 9:34 AM, David Kean <david.k...@microsoft.com> wrote:
> If by using a local variable you mean local field, then yes this is > reliable. > > > > *From:* ozdotnet-boun...@ozdotnet.com [mailto: > ozdotnet-boun...@ozdotnet.com] *On Behalf Of *Greg Keogh > *Sent:* Sunday, October 31, 2010 1:44 PM > *To:* 'ozDotNet' > *Subject:* FW: Use of GCHandle.Alloc and Free > > > > You may recall two weeks ago I had to use code like this to stop a COM > object from being collected: > > > > GCHandle cursorHandle = GCHandle.Alloc(feature.Cursor, > GCHandleType.Normal); > > > > A few people suggested that it was overkill and simply making a local > variable reference to feature.Cursor would fix the problem. > > > > It does! > > > > Although I wonder if using a dummy reference is reliable. In Debug mode it > works, but in Release mode might it get optimised away and my problem will > return? I didn’t try it. > > > > Greg >
