
DCN Next Generation Open Interface Release 2.4 Config Install and Database
en | 64
Bosch Communications Systems | 2007 February | SRS_SCSIINF | Du010934
7. DELEGATE DATABASE (DB) FUNCTIONS
7.1 Introduction
The system configuration functions allow users to compile a comprehensive database of
information relating to participants at a conference or meeting. This chapter defines the set of
remote functions for system configuration.
7.2 DB_C_START_APP
Purpose
Indicate the CCU that the remote controller wants to communicate with the delegate
database in the CCU.
When the execution of this remote function is omitted, all other remote database functions
have no effect and will return the error DB_E_APP_NOT_STARTED.
Availability
This function is available in CCU system mode congress.
Parameter structure for the function
The function requires the following structure as parameters.
typedef struct
{
BYTE byControlType;
} DB_T_APP_CONTROL;
where:
byControlType Identify that the remote controller likes to perform actions on the
database of the CCU. Valid values are:
• DB_C_CONTROL
The remote controller likes to have
control over the database of the CCU.
Note that the second start of the application (without a stop) always results in an error.
Response structure from the function
The function has no response parameters.
Error codes returned
DB_E_NOERROR
DB_E_INCONTROL_OTHER_CHANNEL
DB_E_INCONTROL_THIS_CHANNEL
DB_E_ILLEGAL_CONTROL_TYPE
Related functions
DB_C_STOP_APP
7.3 DB_C_STOP_APP
Purpose
Indicate the CCU that the remote controller no longer requires to access the database inside
the CCU. A call to this function does not clear the database. The database present remains
active till the CCU is restarted or accessed by the database functions (after first calling
DB_C_START_APP).
Note that: Upon communication loss this function will be activated, if
DB_C_START_APP was activated.
Availability
This function is available in CCU system mode congress.
Parameter structure for the function
The function has no additional parameters.
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