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. |