34
••••
Chapter Four - Menus and Toolbars
DDE Server User’s Guide
Server Menu
The
Server
pull-down menu is shown below. Descriptions of the
Server
options
follow.
Run
NOTE:
The Server automatically goes into
Run
mode when the application is
started.
Run
mode and
Configure
mode are mutually exclusive; i.e., selecting Run
disables the
Configure
menu until
Stop
is selected. Similarly, when the Server is
Stopped, the
View
menu is disabled until
Run
is again selected.
Run
puts the PMCS DDE Server into action, ready to answer requests for data from
client applications. Clicking this menu item brings the server on-line with the
available configuration.
You must configure the server before it can be run or a client requests data from it.
Configuration is a one-time process (changes may be made later). The configuration
information is saved to disk and loaded each time the Server is run. You cannot
configure the Server while it is running. Choose
Run
to disable the
Configure
menu
item and enable the
View
menu. This action also enables the
Suspend Protocol
menu item.
The Server waits for DDE clients to become active. When a client requests data, the
PMCS DDE Server answers the request by retrieving this data from the appropriate
devices.
Stop
Stop
sets the PMCS DDE Server off-line, preventing it from requesting any data
from devices. Before you can stop the server, however, DDE links with client
applications must be broken (this may require closing the client application).
After the PMCS DDE Server is off-line, you can make configuration changes.
If, after entering
Stop
mode, you do not enter
Configure
mode, a DDE request from
a client automatically returns the Server to
Run
mode.