2.2.1.4 Notifications

The Notification constants are used by clients to request server action using the server's DdeCallback function.

Constant/value

Description

XTYP_ADVREQ

0x2022

Informs the server that a data request is outstanding on the specified topic name and item name pair, and that data corresponding to the pair has changed.

XTYP_REQUEST

0x20B0

Requests data from the server.

XTYP_EXECUTE

0x4050

Sends a command string to the server.