On 12/10/2011 02:58 PM, tcoq wrote: > Chad, > Thank you very much. I will try your approach, as I'm interested in the > piping. > > I also did some experimenting with SetConsoleMode, and also with > SetFileAttributes, and with ReadFileEx. But no answer there. Still blocks. > IIRC non blocking pipes are difficult on Windows. MSEgui uses a separate thread in tpipereader for simulating non blocking pipes on Windows. http://gitorious.org/mseide-msegui http://gitorious.org/mseide-msegui/mseide-msegui/blobs/master/lib/common/kernel/msepipestream.pas
Asynchronous IO on Windows is done by adding FILE_FLAG_OVERLAPPED to createfile() parameters and a toverlapped with an event object in readfile(). http://msdn.microsoft.com/en-us/library/windows/desktop/aa363858%28v=vs.85%29.aspx http://msdn.microsoft.com/en-us/library/windows/desktop/aa365467%28v=VS.85%29.aspx getoverlappedresult() can then be called with toverlapped or waitforsingleobject() with toverlapped.event as parameter. http://msdn.microsoft.com/en-us/library/windows/desktop/ms687032%28v=vs.85%29.aspx Don't forget to create and free the event object! An example with FILE_FLAG_OVERLAPPED is here http://gitorious.org/mseide-msegui/mseide-msegui/blobs/master/lib/common/serialcomm/msecommport.pas All IIRC! ;-) Martin _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
