When a server starts it may be useful for it to determine the
state of preexisting clients. Sending this message to each
client as it is discovered will cause that client (WSJT-X) to
send a "Decode" message for each decode currently in its "Band
activity" window. Each "Decode" message sent will have the
"New" flag set to false so that they can be distinguished from
new decodes. After all the old decodes have been broadcast a
"Status" message is also broadcast. If the server wishes to
determine the status of a newly discovered client; this
message should be used.
When a server starts it may be useful for it to determine the state of preexisting clients. Sending this message to each client as it is discovered will cause that client (WSJT-X) to send a "Decode" message for each decode currently in its "Band activity" window. Each "Decode" message sent will have the "New" flag set to false so that they can be distinguished from new decodes. After all the old decodes have been broadcast a "Status" message is also broadcast. If the server wishes to determine the status of a newly discovered client; this message should be used.
See WSJT-X source.