Mailing-List: contact cygwin-developers-help AT sourceware DOT cygnus DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-developers-owner AT sources DOT redhat DOT com Delivered-To: mailing list cygwin-developers AT sources DOT redhat DOT com Message-ID: <3994DFA7.E18CDE54@ece.gatech.edu> Date: Sat, 12 Aug 2000 01:24:55 -0400 From: Charles Wilson X-Mailer: Mozilla 4.73 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: cygwin-developers AT sourceware DOT cygnus DOT com Subject: Re: Clipboard from Cygwin (read-only) References: <003b01bffc0a$6da278a0$3c5350d8 AT guinness> <200008012327 DOT TAA29658 AT envy DOT delorie DOT com> <398783D9 DOT E25355B6 AT ece DOT gatech DOT edu> <200008020225 DOT WAA31321 AT envy DOT delorie DOT com> <39887033 DOT 1D40E2BA AT ece DOT gatech DOT edu> <39947F5A DOT DC110FFD AT ece DOT gatech DOT edu> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Forgot to mention one thing. To read from /dev/clipboard, you have to call read() with a buffer large enough to hold the entire clipboard message -- no buffering. If you call read() with a buffer too small, it sets error to EINVAL. For instance, cat.exe uses a buffer of 4000 bytes; if the contents of the clipboard are larger than that you get an error. Cat, for instance, reports: "cat: write error: Permission denied" when the clipboard is bigger than its 4000 byte buffer. Yeah, this ought to allow buffered reads I suppose, but it's a work in progress... --Chuck P.S. As Chris pointed out, I haven't yet done the copyright assignment thing, so there will be a small delay while I take care of that. It's such a shock to suddenly have to wait for real-world postal delays....