I see some other similar threads on this, but the issue I'm having is a little different (although possible related).

I'm using Windows 7 64, Pl/SQL Dev 9.0.4

When I highlight SQL from the SQL window and copy it to the clipboard (Ctrl+C), the screen freezes/pauses for a few seconds.

All other programs on my PC can copy to the clipbord just fine.

Any idea of which settings/preferences I could change to stop this issue?

I'm not sure what could cause this. Pressing Ctrl-C doesn't do anything more than copy the selection to the clipboard.

Does this happen for all copy actions, or does it matter in which window, or how large the selection is, or something else?

Thanks for your reply Marco.

It happens regardless of text selection size.
It happens in the SQL Window and Command Window.
It does not happen when selecting text from a dataset cell.

When looking at my windows task manager performance tab, I see the CPU increase 5% to 7% when copying from the SQL/Command window, it sits at this for a few seconds. It'll only rise 1% to 2% when selecting the same text from something else (notepad for example) and drop back down instantly.

we have the same issue (with citrix).
Marco: could you look into this problem please?
maybe this one helps a bit: http://support.citrix.com/article/CTX101600

Thanks, we'll check it out.

Any update on this?
I use PL/SQL Developer for about 80% of my daily work, and it's a real bind waiting around for the clipboard to respond.

I have noticed the same thing with "cut". But it is inconsistent, sometimes it's faster, sometimes it's slower. I notice it mainly in the PL/SQL window, but in SQL window as well. I thought it had something to do with code parsing, but that was just a guess.

I have a fast machine so it doesn't bother me too much. Hey, you need quad core i7 to edit files in PL/SQL developer.

We have the same problem. When copying with Ctrl C or any other way the application freezes for 2 or 3 seconds. Very annoying.

I noticed that Special Copy doesn't seem to have any delay.

I'm running PL/SQL Developer on Windows 7, 64bits.

EDIT: Oh, and it's version 8.0.4.1514, please let me know if you know of any workaround for this.

Could it be 64-bit problem?
I have got a new PC with Windows 7 64-bits and PLSQL Developer 9.0 and I also have the cut/copy problem (freezes/pauses). On my old PC running Windows Vista 32-bits and PLSQL Developer 8.x it was no problem.

Hi, we have the same problem with Microsoft Windows XP Professional 32-bit and PLSQL Developer 9.0.6.1665 07.73972