FontSet for XIM, dynamically changeable?

The FontSet, which is used while inputting Japanese using XIM and which is also used for the menu bar, can be selected using something like !! FontSet for menus when you use --with-xfs or --with-xim=xlib. XEmacs*fontSet: -*-fixed-medium-r-normal--16-* in .Xresources. Is it also possible to change this FontSet later, after XEmacs has been started? Currently, if I change the fonts used for normal text within XEmacs at runtime (using 'set-face-font'), the font used for XIM doesn't change. For example if I change to a bigger font to be able to read Japanese better, the font used for XIM still stays tiny and difficult to read. I.e. while typing a Japanese word or phrase, pressing SPC to convert to Kanji and selecting　the correct Kanji, the characters are small. After the conversion to Kanji is finished, the characters jump to the size of the surrounding characters. If the FontSet used for XIM could be changed at runtime too, this annoying behaviour could be avoided. -- Mike Fabian <mfabian(a)suse.de&gt;