/pps/system/keyboard/control

The Keyboard service listens for commands from the HMI on this control object

Publishers: Any app
Subscribers: Keyboard service

Note: This type of object is known as a server object, a special PPS object designed for point-to-point communication between a server and one or more clients. For details, see "Server objects" in the QNX Persistent Publish/Subscribe Developer's Guide.

Message/response format

Commands sent to the /pps/system/keyboard/control object are of the form:

msg::command_string\nid::ID\ndat:json:{JSON_data}

Responses always reflect the command_string and ID_number that were sent in the message, along with any errors:

res::command_string\nid::ID\ndat:json:{JSON_data}\n error::error_description

Commands

msg::	id::	dat:json:
Messages to send to the control object: show hide	The message's ID string (usually a number, but can be anything).	JSON data (payload) related to the message.

Examples

Show the keyboard:

echo "msg::show\nid::1\ndat:json:{}" > /pps/system/keyboard/control

Hide the keyboard:

echo "msg::hide\nid::2\ndat:json:{}" > /pps/system/keyboard/control