1.98.2 Send methods

message ->_execute:

Start the XPCE virtual machine operation

send(<-receiver, <-selector, <-arguments ...)

Any function object appearing in the message<-receiver, message<-selector or message<-arguments are first evaluated.

message ->argument: index=int, value=any|function

Set the nth (1-based) argument of the send-operation. When necessary, the message<-arguments code_vector object is created or enlarged.

message ->initialise: receiver=object|function, selector=name|function, argument=any|function ...

Create a send-template from its receiver, selector and argument list. Note that all arguments may be function objects. If the message is executed it will first evaluate all functions. Example:

?- new(D, dialog),
   send(D, append,
            button(show_display_size,
                           message(@display, inform,
                                           'The display is %dx%d pixels',
                                           @display?size?width,
                                           @display?size?height))),
   send(D, open).

See also class ?.