wine cvs notes and proposed keyboard detection fix.

Shane Shields locutusenterprises at
Tue Jan 20 16:10:17 CST 2004

On Tuesday 20 January 2004 5:23 am, Dmitry Timoshkov wrote:
> X11 team tends to remove more than 2 characters per keysym. See
> /etc/X11/xkb/symbols/tr. Turkish keyboard layout in Wine has more
> than 2 for some of them. Just do 'setxkbmap tr' and run Wine with
> +key,keyboard,+x11drv and look for mismatches.

I have done that and piped the output to a logfile. Attached is an abbreviated 
version with just the icelandic and turkish detection included. It seems to 
be mismatching on detecting the third keysym where the key is defined 
in /etc/X11/xkb/symbols/tr this could be a clue :)

> That shouldn't happen. Keyboard detection code always does a full round
> of comparisons with every keyboard table in x11drv.

I took another look at the code and with the trace I have to say that I was 
wrong :-(

The trace only shows 0x0000 for the third(?) keysymb so I dont know what was 
returned. I believe (gingerly) that is due to the trace having a precision of 
          TRACE_(key)("mismatch for keysym 0x%04lX, keycode %d, 

in function X11DRV_KEYBOARD_DetectLayout where it should be 
         TRACE_(key)("mismatch for keysym 0x%08lX, keycode %d, 

or my version of X11 is returning a larger value than it should. I suspect 
this because of the large amount of calls to the function 
KEYBOARD_MapDeadKeysym. Maybe the X11 guys have changed a short to a long 
somewhere in my version of X11 (cvs 2003-11-24) or my gcc (3.2.2) has defined 
them differently. If that is the case then the line 

                ckey[i] = keysym & 0xFF;

in function X11DRV_KEYBOARD_DetectLayout would change the keysym and cause a 
mismatch. Another thought popped up is maybe the X11 guys extended the 
keysymb codes to allow for 6 instead of four combinations. I will have to 
check the changelogs to be sure.

> Other programs have no constrains implied by implementing Win32 APIs on the
> top of X11.

Shane Shields

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