On Mon, 26 May 2014 12:31:41 +0100 C Western <l...@c-m-w.me.uk> wrote:
> I may have discovered an issue with the clipboard on Linux/GTK2. My > application updates a paste button and menu item via an action that > updates on idle by calling Clipboard.HasFormat(CF_TEXT). Pasting is > intermittently failing/hanging for 10 seconds, and I think the issue is > that the Clipboard.HasFormat routine is reentered. Clipboard.HasFormat > can call Application.ProcessMessages, and a possible failure path seems > to be that a Ctrl+V arrives during this call of ProcessMessages, and in > handling this Clipboard.HasFormat is called, and the routine seems to > have nothing to protect against reentry. > > Two Ctrl+V's in quick succession could potentially trigger then same > issue, if the clipboard contents are large. > > Have I misunderstood something? I couldn't see anything in the bug > tracker about this, though there is a reported issue about large pastes. > I can't see any obvious fix at the application level other than leaving > the paste items permanently enabled. > > I think this is not an issue in MS Windows as I don't think the > clipboard requires communication with another process. Can you create a small example? Mattias -- _______________________________________________ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
