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win32/console: io_handle

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* ext/-test-/win32/console/attribute.c (io_handle): extract
  conversion from IO instance to HANDLE.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54599 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-04-15 12:13:35 +00:00
parent f7d0059e36
commit ffd0301a35
1 changed files with 16 additions and 8 deletions
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24
ext/-test-/win32/console/attribute.c
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@ -2,29 +2,37 @@
static VALUE rb_cConsoleScreenBufferInfo;
static VALUE
console_info(VALUE io)
static HANDLE
io_handle(VALUE io)
{
int fd = NUM2INT(rb_funcallv(io, rb_intern("fileno"), 0, 0));
HANDLE h = (HANDLE)rb_w32_get_osfhandle(fd);
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (h == (HANDLE)-1) rb_raise(rb_eIOError, "invalid io");
return h;
}
static VALUE
console_info(VALUE io)
{
HANDLE h = io_handle(io);
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (!GetConsoleScreenBufferInfo(h, &csbi))
rb_syserr_fail(rb_w32_map_errno(GetLastError()), "not console");
return rb_struct_new(rb_cConsoleScreenBufferInfo,
INT2FIX(csbi.dwSize.X), INT2FIX(csbi.dwSize.Y),
INT2FIX(csbi.dwCursorPosition.X), INT2FIX(csbi.dwCursorPosition.Y),
INT2FIX(csbi.dwSize.X),
INT2FIX(csbi.dwSize.Y),
INT2FIX(csbi.dwCursorPosition.X),
INT2FIX(csbi.dwCursorPosition.Y),
INT2FIX(csbi.wAttributes));
}
static VALUE
console_set_attribute(VALUE io, VALUE attr)
{
int fd = NUM2INT(rb_funcallv(io, rb_intern("fileno"), 0, 0));
HANDLE h = (HANDLE)rb_w32_get_osfhandle(fd);
HANDLE h = io_handle(io);
if (h == (HANDLE)-1) rb_raise(rb_eIOError, "invalid io");
SetConsoleTextAttribute(h, (WORD)NUM2INT(attr));
return Qnil;
}