XXXXmmmmIIIImmmmUUUUnnnnsssseeeettttFFFFooooccccuuuussss unsets a specified widget's focus, then
notifies the input manager that the specified widget has
lost its input focus.
Note that the Text, TextField, and List widgets already call
the XXXXmmmmIIIImmmmUUUUnnnnsssseeeettttFFFFooooccccuuuussss internally. Therefore, further calls to
the XXXXmmmmIIIImmmmUUUUnnnnsssseeeettttFFFFooooccccuuuussss function for those widgets are
unnecessary.
_w_i_d_g_e_t Specifies the ID of the widget registered with the
input manager
RRRREEEELLLLAAAATTTTEEEEDDDD
XXXXmmmmIIIImmmmSSSSeeeettttFFFFooooccccuuuussssVVVVaaaalllluuuueeeessss(3) and XXXXmmmmIIIImmmmVVVVaaaaSSSSeeeettttFFFFooooccccuuuussssVVVVaaaalllluuuueeeessss(3).