Detect console streams more reliably on Windows
commitdbcc3f5b7c67637c8fa6ad83747846d643284ab0
authorKarsten Blees <blees@dcon.de>
Sat, 31 Jul 2010 00:04:02 +0000 (31 00:04 +0000)
committerPat Thoyts <patthoyts@users.sourceforge.net>
Thu, 27 Oct 2011 08:51:09 +0000 (27 09:51 +0100)
tree3dc44bc613385141cb0a393acf2450c98dcfdb12
parentbf6c56f9831bf54adae6adc45bc22ee2e84287de
Detect console streams more reliably on Windows

GetStdHandle(STD_OUTPUT_HANDLE) doesn't work for stderr if stdout is
redirected. Use _get_osfhandle of the FILE* instead.

_isatty() is true for all character devices (including parallel and serial
ports). Check return value of GetConsoleScreenBufferInfo instead to
reliably detect console handles (also don't initialize internal state from
an uninitialized CONSOLE_SCREEN_BUFFER_INFO structure if the function
fails).

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
compat/winansi.c