Detect console streams more reliably on Windows
commitbfcdc94ec07542401f33d6e4d88fe59ef89fe9a0
authorKarsten Blees <blees@dcon.de>
Sat, 31 Jul 2010 00:04:02 +0000 (31 00:04 +0000)
committerJohannes Schindelin <johannes.schindelin@gmx.de>
Fri, 4 Nov 2011 18:39:45 +0000 (4 13:39 -0500)
tree2125de46cd596be9252416a2d7169ac83f9d3824
parent9b505ab138fc30ff8f5fe6425b414e5d1eaeb8fb
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