Specifications

DDE reference
174
Glink: API reference manual Gallagher & Robertson
DDE Initiate
The DDE conversation is initiated in the standard form, using application and
topic names. The application name is of course 'GL', while the default topic
name is 'GLINK'. The topic name will in general be set to the main window
title, which in turn consists of the fixed window title (GLINK) optionally fol-
lowed by the current host name (a hyphen will separate these). The fixed
window title may be changed for a specific instance of Glink using the script
TITLE command. Alternatively you may specify a fixed DDE topic name using
either the script DDENAME command or the /DDE parameter on the command
line. In this case, the window title is not used for topic name setting.
In both cases, the topic will be considered to match so long as it matches to the
entire length specified by the prospective client. For example, if the window title
is 'GLINK - MyHost' then the DDE conversation may be started using
'GLINK' as a topic name (in which case more than one GLINK may acknow-
ledge the request) or using the full window title.
In the same way, if DDENAME has been used to set a fixed DDENAME (say) of
'DDELINK' then possible matching topics could be 'DDE', 'DDEL' and
'DDELINK'. A prospective client specifying 'DDELINK GLINK' however
would not be considered.
The topic is always case-insensitive.