Bosch DCN Next Generation Manuale Utente Pagina 247

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DCN Next Generation Open Interface Release 2.4 AT
en | 247
Bosch Communications Systems | 2007 February | SRS_ATINF | Du100902
3. REMOTE FUNCTIONS
3.1 Introduction
This chapter describes the various remote functions needed to control the attendance registration
application inside the CCU. A global description of the remote function handling is described in
[SRS_INF].
The CCU can operate in multiple modes. The use of the AT remote function is restricted to the
“Congress Mode”. An overview of modes can be found in [SRS_SCSIINF].
3.1.1 Remote function item explanation
Each description consists of the following items:
Purpose
A global description of the purpose of the function.
Parameter structure for the function
The input parameters needed to fulfil the function. When the function requires no parameters,
no structure is described here.
Response structure from the function
The output information coming from the function called. This information is only valid when the
‘wError’ field of the received response information equals AT_E_NOERROR.
Error codes returned
The error values returned in the ‘wError’ field of the response information. All possible error
codes are described in Appendix B.
Update notifications
The update notifications that are generated during the execution of the remote function. When
there are no notifications generated, then this part will be omitted.
Related functions
The related function in conjunction with the function described. It refers to other remote
functions and to related update notifications.
3.2 Attendance/Access functions
3.2.1 AT_C_START_AT_APP
Purpose
Indicate the CCU that the remote controller wants to communicate with the AT application inside
the CCU. Depending on the control-type passed the remote controller gets the opportunity to
start attendance registration and/or access control. When no control is needed, but the remote
controller likes to know which delegates are present (i.e. for microphone display information), the
remote controller can monitor the presence changes from the CCU.
When you omit the execution of this remote function, all other remote functions have no effect
and will return an error.
Parameter structure for the function
The function requires the following structure as parameters.
typedef struct
{
BYTE byRemoteControlType;
} AT_T_APPCONTROL;
where:
byRemoteControlType Identify what function the remote controller likes to perform in
combination with the attendance application. Valid values are:
AT_C_APP_CONTROL
The remote controller likes to have full
control over the attendance registration
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