How to set GTK_IM_MODULE to GTK default input method

[Lex Trotman <elextr gmail com>]

Hi,

What value should the environment variable GTK_IM_MODULE be set to so
that it will select the GTK default input method and override what the
desktop is set to.  I have one program that I want to use GTK default
not the desktop default.

I've tried things like "gtk" "default" and "".  Can't find it in the
documentation.

Using GTK on linux gnome.

Cheers
Lex