Please describe the problem:
even after fixing the problem in X
some keys are not functional

I put it against gdk just a guess

the entire problem is reported to both freedesktop and redhat buzgilla's
http://bugs.freedesktop.org/show_bug.cgi?id=19291
https://bugzilla.redhat.com/show_bug.cgi?id=466627

when one presses some keys like the one with "b" in English layout
two characters should be generated

after doing the fixes in X
one needs to export GTK_IM_MODULE="xim"
it will work then

but this is a special case
for example on windows [ie. no X there]
the problem is still there in Gtk+ applications
ie. one don't get any thing when he presses b

which made me to guess it's in gdk


Steps to reproduce:
1. install gimp on windows
2. change layout to arabic
3. press b to get لا


Actual results:
nothing

Expected results:
لا is typed

Does this happen every time?
yes

Other information:
feel free to move it to win32 or clone it