Thanks for the Reponses and the article, which is interesting.
However, I don't think the clipboard CHANGE notification chain breakage as root cause discussed in this article is what I'm seeing. The behavior I have (on more than one machine), is that when data is placed on the clipboard in AppA, it can then be pasted in AppB. As the article states, the "pasting app" (in this case AppB), is in this case checking that the clipboard is NON_EMPTY. In my case, the initial paste succeeds, thus validating that the clipboard does indeed contain data. The problem is, subsequent paste attempts to use the same clipboard data fail. Either within the same AppB, other destination apps, or even the source application (AppA) itself. No change notification is involved here, as the original clipboard data should still be valid unless overwritten by another cut/copy operation. Thus, something is removing the clipboard contents after it is used once.... Either the clipboard itself is flushing the data, or perhaps the destination app is then clearing the clipboard after the first paste. It's odd, and hard to reproduce. I'll keep track more carefully when I see it again. And it's certainly something I've only seen within the last couple revs of something... Office I suspect. I don't recall this being an XP thing (where I know it has occurred) several years ago... so if it as OS problem I suspect it's a recent patch that introduced it. -sc From: Webster [mailto:[email protected]] Sent: Saturday, August 29, 2009 7:35 PM To: NT System Admin Issues Subject: RE: Clipboard From: Brian Desmond [mailto:[email protected]] Subject: RE: Clipboard Not sure where the root of this thread is (can't find it), but, a couple things for the OP: รจ The Clipboard in Windows has this concept of a Clipboard chain. It gets screwed up sometimes. If you plug that into Google I believe it's Citrix that has a good article on how this works. Dumpanalysis.org may also have something relevant. The Citrix article will point you to this: http://www.dumpanalysis.org/blog/index.php/2006/12/09/clipboard-issues-explained/ Webster ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
