Detect console streams more reliably on Windows
commitb8da5daa8ff3de586a0041ba1d3a88ace85a3844
authorKarsten Blees <blees@dcon.de>
Sat, 31 Jul 2010 00:04:02 +0000 (31 00:04 +0000)
committerJohannes Schindelin <johannes.schindelin@gmx.de>
Mon, 24 Oct 2011 15:05:49 +0000 (24 10:05 -0500)
tree0c859648be916e0942d7d84ad06ef59fd5f38e93
parent6ecd89f2a6bbc7efc58ca9389aef4e3c22c32c95
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