The application should check the Glink event code to determine which Glink event did occur,
for example that the Glink session was connected or disconnected.
Returns true if Glink is connected to a host
and the communication module in use knows about which
side has the turn to send, either the host side or the
Glink side.
This method waits until the turn has been received from the host and then
returns the byte array of characters received, in the host native character set.
Specifies that no fields are defined for the current screen and
data is sent to the host character by character and simultaneously
displayed on the local screen.