Andrew Schulman wrote: > > In general, non-cygwin programs can't be run reliably inside of an > > application that uses cygwin PTYs, including xterm, rxvt, and screen. > > Maybe someone knows a solution to this, but I don't. Although I maintain > screen > for Cygwin, I know almost nothing of the details of how terminals work. I > could > imagine some kind of a DOS-to-Unix terminal wrapper program, but I've never > seen > one and have no idea how it would work.
Windows implements console mode as a client-server protocol between the executable (ntvdm.exe for DOS apps) and winsrv.dll (hosted in csrss.exe), but the protocol isn't easily hookable. I guess one would have to hijack the console APIs, perhaps by stepping into the application using debugging APIs and overwriting the DLL imports, but it would be pretty painful. I don't know how DOS programs that use graphics modes (in fullscreen) are implemented, though these must be rare now given that Vista no longer has a full-screen mode. -- Barry -- http://barrkel.blogspot.com/ -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
