Mail Archives: cygwin/2018/09/03/16:27:33
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| X-HELO: | mout.kundenserver.de
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| Date: | Mon, 3 Sep 2018 22:27:16 +0200
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| From: | Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
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| To: | cygwin AT cygwin DOT com
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| Subject: | Re: Cygwin fails to utilize Unicode replacement character
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| Message-ID: | <20180903202716.GA6350@calimero.vinschen.de>
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--309evMHi/619oHyA
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On Sep 3 21:14, Corinna Vinschen wrote:
> On Sep 3 20:20, Thomas Wolff wrote:
> > Am 03.09.2018 um 19:56 schrieb Thomas Wolff:
> > > Am 03.09.2018 um 19:16 schrieb Corinna Vinschen:
> > > > On Sep=C2=A0 3 18:34, Thomas Wolff wrote:
> > > > > Am 03.09.2018 um 16:59 schrieb Corinna Vinschen:
> > > > > > Does anybody have an idea what I'm doing wrong?
> > > > > This works in mintty, just uploaded a patch. Maybe somehow the
> > > > > GetConsole
> > > > > "dc" does not support this usage?
> > > > =C2=AF\_(=E3=83=84)_/=C2=AF
> > > Dito; hold on, sorry, your code does *not* work inside mintty.
> > > Mine looks a bit different and I thought to have manually verified it=
's
> > > functionally equivalent, but indeed there must be something fishy...
> > You still need to
> > =C2=A0 SelectObject(cdc, f);
> > where f is the HFONT of the font you want to check.
> > To compare, you may check out function win_check_glyphs in file wintext=
.c in
> > mintty.
>=20
> Thanks but I don't know how to get a HFONT for the current console font.
>=20
> In the meantime I figured out why my GetCurrentConsoleFontEx call
> failed with error 87:
>=20
> When looking again I realized there's a member called cbSize. The MSDN
> docs neglect to tell that the cbSize member has to be primed with
> sizeof(CONSOLE_FONT_INFOEX). As soon as I tried that, the function
> succeeded.
>=20
> Well, it's a start. I now have the actual font name. No idea how to
> get a HFONT from there, though. From what I can tell ATM, I'd have to
> call CreateFont to get a new HFONT and then destroy it again after
> usage. This looks pretty wasteful.
Well, it still doesn't work for me. I now have the following code:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D SNIP =3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
#include <windows.h>
#include <stdio.h>
#include <wchar.h>
int
main ()
{
static const wchar_t replacement_char[2] =3D
{
0xfffd, /* REPLACEMENT CHARACTER */
0x2592 /* MEDIUM SHADE */
};
CONSOLE_FONT_INFOEX cfi;
HWND cwnd =3D GetConsoleWindow ();
HDC cdc =3D GetDC (cwnd);
int rp_idx =3D 1;
WORD gi[2] =3D { 0, 0 };
memset (&cfi, 0, sizeof cfi);
cfi.cbSize =3D sizeof cfi;
if (GetCurrentConsoleFontEx (GetStdHandle (STD_OUTPUT_HANDLE), FALSE, &cf=
i))
{
printf ("font %ls\n", cfi.FaceName);
HFONT hf =3D CreateFontW (cfi.dwFontSize.Y, cfi.dwFontSize.X,
0, 0, cfi.FontWeight, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
FIXED_PITCH | FF_DONTCARE, cfi.FaceName);
if (hf)
{
HFONT old_f =3D SelectObject(cdc, hf);
if (GetGlyphIndicesW (cdc, replacement_char, 2, gi,
GGI_MARK_NONEXISTING_GLYPHS) !=3D GDI_ERROR)
{
printf ("gi =3D %d %d\n", gi[0], gi[1]);
if (gi[0] !=3D 0xffff)
rp_idx =3D 0;
}
if (old_f)
old_f =3D SelectObject (cdc, old_f);
DeleteObject (hf);
}
}
printf ("rp_idx =3D %d\n", rp_idx);
return 0;
}
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D SNAP =3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Supposedly none of the fonts support 0xfffd:
$ gcc -g -o cons cons.c -lgdi32
$ ./cons
font Consolas
gi =3D 65535 879
rp_idx =3D 1
$ ./cons
font Lucida Console
gi =3D 65535 620
rp_idx =3D 1
$ ./cons
font Courier New
gi =3D 65535 372
rp_idx =3D 1
So I'm still doing something wrong, apparently. Any hint?
Thanks,
Corinna
--=20
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
Red Hat
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