(undo-passive-grab modmask keycode-or-butnum #&optional mouse?)
Remove the passive grabs of keycode-or-butnum with modmask on all windows.
If mouse? is #t, then treat keycode-or-butnum as a button number and remove
a grabe of a mouse binding. Otherwise remove a keyboard passive grab.
Module: Built-in Primitive
Defined in src/binding.c
at line 1625 (CVS log)