Bosch Appliances Webcam 0 User Manual

DCN Next Generation Video Display 

en | 7 

 

Bosch Security Systems B.V. | 2005 January | 9922 141 70451 

3.2  DDE link specifications 

The following section specifies, for each available DDE link, the name and its purpose, the layout of the data 
and the requirements that must be met to make the link available.  
 

 i 

  Note 

If a link is available but does not have any data to transmit, each link will send an empty update. Empty 
updates consist of empty strings for string parts and/or 0 (zero) values for numerical parts. 

 

 i 

  Note 

Because commas are used as a separator in DDE links that transmit data consisting of several parts, 
undefined behavior may occur if any string part transmitted through such a DDE link contains commas. 

3.2.1  Topic = SESSION 

Topic = SESSION, data-item = NAMES 

This link provides the screen line information for each delegate in the current names file. 

“delegate ID, screen line, delegate ID, screen line, ...” 

where: 

A number in the range 1-1000 that identifies the delegate in the 
delegate database. Each number has a unique ID_number. 

Text of 33 characters which idientifies the delegate as text. Can 
be generated by either the DB application or using the API 

‘Delegate ID’ and ‘Screen line’ are separated by commas. This sequence is repeated for each delegate, again 
separated by commas. 

This link is always available. If there is a names file, the string as described above is sent  whenever a change 
in the delegate database occurs. If there is no names file or the names file is empty, an  empty update is sent. 

Topic = SESSION, data-item = GROUPS 

This link provides group information for each delegate in the current names file. 

“delegate ID, group name, delegate ID, group name, ...” 

where: 

A number in the range 1-1000 that identifies the delegate in the 
delegate database. Each number has a unique ID_number. 

The name of the group for this delegate as determined by the 
names fil. If the delegate is not associated with a group this part is 
empty. 

Delegate ID and group name are separated by commas. This sequence is repeated for each delegate, again 
separated by commas. 

This link is always available. If there is a names file the string as described above is sent  whenever a change 
in the delegate database occurs. If there is no names file or the names file is empty an empty update is sent. 

Topic = SESSION, data-item = COUNTRIES 

This link provides country information for each delegate in the current names file. 

“delegate ID, country name, delegate ID, country name, ...” 

where: 

A number in the range 1-1000 that identifies the delegate in the