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| author | Corinna Vinschen <corinna@vinschen.de> | 2001-06-22 20:08:06 +0000 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2001-06-22 20:08:06 +0000 |
| commit | 26da27a5f69ac8de7f2ac4a786485e8e4b5d1f48 (patch) | |
| tree | dbd96cceb5e749065b87e4e89ef155ae606a341d /winsup/cygwin/fhandler_console.cc | |
| parent | b643afa4c7f963743fcb805ce285927dd9be1001 (diff) | |
| download | newlib-26da27a5f69ac8de7f2ac4a786485e8e4b5d1f48.zip newlib-26da27a5f69ac8de7f2ac4a786485e8e4b5d1f48.tar.gz newlib-26da27a5f69ac8de7f2ac4a786485e8e4b5d1f48.tar.bz2 | |
* fhandler_console.cc (fhandler_console::read): Detect AltGr more
robustly on WinNT.
Diffstat (limited to 'winsup/cygwin/fhandler_console.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_console.cc | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/winsup/cygwin/fhandler_console.cc b/winsup/cygwin/fhandler_console.cc index b09eeff..f90f370 100644 --- a/winsup/cygwin/fhandler_console.cc +++ b/winsup/cygwin/fhandler_console.cc @@ -289,6 +289,8 @@ fhandler_console::read (void *pv, size_t buflen) #define ich (input_rec.Event.KeyEvent.uChar.AsciiChar) #define wch (input_rec.Event.KeyEvent.uChar.UnicodeChar) +#define ALT_PRESSED (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED) +#define CTRL_PRESSED (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED) if (wch == 0 || /* arrow/function keys */ @@ -306,8 +308,22 @@ fhandler_console::read (void *pv, size_t buflen) converting a CTRL-U. */ if ((unsigned char)ich > 0x7f) con_to_str (tmp + 1, tmp + 1, 1); - /* Determine if the keystroke is modified by META. */ - if (!(input_rec.Event.KeyEvent.dwControlKeyState & meta_mask)) + /* Determine if the keystroke is modified by META. The tricky + part is to distinguish whether the right Alt key should be + recognized as Alt, or as AltGr. */ + bool meta; + if (os_being_run == winNT) + /* WinNT: AltGr is reported as Ctrl+Alt, and Ctrl+Alt is + treated just like AltGr. However, if Ctrl+Alt+key generates + an ASCII control character, interpret is as META. */ + meta = (control_key_state & ALT_PRESSED) != 0 + && ((control_key_state & CTRL_PRESSED) == 0 + || (ich >= 0 && ich <= 0x1f || ich == 0x7f)); + else + /* Win9x: there's no way to distinguish Alt from AltGr, so rely + on meta_mask heuristic (see fhandler_console constructor). */ + meta = (control_key_state & meta_mask) != 0; + if (!meta) toadd = tmp + 1; else { @@ -319,6 +335,8 @@ fhandler_console::read (void *pv, size_t buflen) } #undef ich #undef wch +#undef ALT_PRESSED +#undef CTRL_PRESSED break; case MOUSE_EVENT: |