Calls a thunk, disabling callbacks during the thunk's execution. This
is used to implement
set-value in mred:media-text%, which changes the text in the control but should not call the
callback procedure.
(send a-mred:media-text-edit without-callback cb)->void cb : a procedure of no arguments
![[previous]](../icons/left.gif){kind=icon}
![[up]](../icons/up.gif){kind=icon}
![[next]](../icons/right.gif){kind=icon}
![[contents]](../icons/contents.gif){kind=icon}
![[index]](../icons/index.gif){kind=icon}