val open_simple : string -> (string -> unit) -> (unit -> 'a) -> Textvariable.textVariable -> unit
open_simple title action cancelled memory
A dialog with a message and an entry field (with memory between
cancelled is called when the user
answers to the dialog (with Ok or Cancel)
val open_simple_synchronous : string -> Textvariable.textVariable -> bool
open_simple_synchronous title memory
A synchronous dialog with a message and an entry field (with
memory between invocations). Returns true if the user clicks Ok
or false if the user clicks Cancel.
val open_list : string -> string list -> (string -> unit) -> (unit -> unit) -> unit
open_list title elements action cancelled
A dialog for selecting from a list of elements.
action is called
on each selected element, or
cancelled is called if the user clicks
val open_passwd : string -> string * string
open_passwd title pops up a username/password dialog and returns
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