Macro relm::connect
[−]
[src]
macro_rules! connect { ($widget:expr, $event:ident($($args:pat),*), $other_component:expr, $msg:expr) => { ... }; ($relm:expr, $widget:expr, $event:ident($($args:pat),*), $msg:expr) => { ... }; ($relm:expr, $widget:expr, $event:ident($($args:pat),*) $msg:expr) => { ... }; ($src_component:ident @ $message:pat, $dst_component:ident, $msg:expr) => { ... }; }
Connect events to sending a message.
Rule #1:
Send $msg
to $other_component
when the GTK+ $event
is emitted on $widget
.
Rule #2:
Optionally send $msg.0
when the GTK+ $event
is emitted on $widget
.
Return $msg.1
in the GTK+ callback.
This variant gives more control to the caller since it expects a $msg
returning (Option<MSG>, ReturnValue)
where the ReturnValue
is the value to return in the GTK+ callback.
Option
Rule #3:
Send $msg
when the GTK+ $event
is emitted on $widget
.
Rule #4:
Send $msg
to $widget
when the $message
is received on $stream
.