Jump to: navigation, search



Opens a communication session to the T-Server specified by the parameters server_host_name and server_port, which are taken from Configuration Server. It designates the event-processing function that will be invoked each time an event from T-Server is detected.

Use the TOpenServerEx() function (rather than TOpenServer()) to reconnect after a T-Server session has been unexpectedly disconnected or if an application already knows the parameters server_host_name and server_port.


Name Description
server_host_name A pointer to the host name of T-Server to be contacted.
server_port The port number.
dispatch_function A pointer to the function that will be called when an event from T-Server arrives.
application_name A pointer to the application name.
application_password A pointer to the string containing the tenant name and the tenant password separated by a slash (/).
open_mode Communication mode (synchronous or asynchronous). Refer to the type TOpenMode for information on the implications of using one mode versus the other.

Return Values

> 0 - A local server handle to the specific T-Server; in other words, a unique identifier assigned by T-Library to the connection between a client and T-Server. The handle will be used subsequently to send requests to T-Server throughout this communication session.

< 0 - Error condition. Returned to the application if the communication session with the T-Server could not be established.

This page was last edited on June 27, 2017, at 20:21.
Comments or questions about this documentation? Contact us for support!