Specifications

Shared Variables
100
AMX InspiredSignage XPress Programming Guide
Network API Commands (Cont.)
EVENT Syntax:
EVENT [timestamp] “name” “value”\r\n
Used to send or receive UI events. The timestamp is optional. The name must be one
of the UI trigger names:
•“keydown”, “keyup”: the value is an SVG key identifier, e.g. “Enter”, a character,
e.g. “A” or an hexadecimal unicode character, e.g. “U+0041”; it may be prefixed by
one or more of the following modifiers: “Ctrl+”, “Shift+”, “Alt+”, “Meta+”, “AltGr+”,
e.g. “Shift+A”.
•“textInput”: the value is the text string input by the user, utf-8 encoded.
•“mousedown”, “mouseup”, “mousemove” or “mousewheel”: the value is a
comma-separated list of the following argument: “x”, “y”, “button” and “delta” as
applicable, e.g. for a mousedown on the left button at coordinates 45,20, the value
string is “x=45,y=20,button=0”
•“focusin” and “focusout”: the value must be empty.
It is only possible to send an 'EVENT' command to an IS-SPX-1000 if the network
API is enabled.
Example:
GET / event?name1=value1&name2=value2... HTTP/1.0\r\n
\r\n
Used to send one or more events.
Instead of opening a TCP socket and managing the low level protocol, you can get a
web browser to send the request by entering the address below:
http://[server]:[port]/
event?event_name1=value1&event_name2=value2...
SUBSCRIBE Syntax:
SUBSCRIBE “name”\r\n
Subscribe to a variable on this server (the @ sign and hostname must be removed).
The subscriber will be notified each time the variable is modified. If the client 
subscribes to a variable, it will received an 'UPDATE' command each time the 
variable is modified. If the client subscribe to the special variable “%EVENTS%”, it
will receive an 'EVENT' command each time an event is generated on the server, i.e.
each time a keyboard or a mouse input is received on the server.
It is only possible to send an 'SUBSCRIBE' command to an IS-SPX-1000 if the 
network API is enabled.
UNSUBSCRIBE Syntax:
UNSUBSCRIBE “name”\r\n
Unsubscribe to a variable.