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Global Call API for HMP on Windows Programming Guide — August 2006
113
Real Time Configuration Management
parameter IDs are only guaranteed to be unique within a given set ID. Note that some 
configurable parameters are defined only for a specific software module, while others may be 
used across different software modules. Typically, a software module that supports RTCM 
contains multiple parameter sets as well as target objects. 
Note: The set ID and parm ID pairs are used by other Global Call features in addition to 
RTCM. 
9.3.1
Parameter Dependencies
A high-level target object, such as a system entity, can contain a lower-level target object, such as a 
channel entity. When a target object is created, its configuration is initialized as the default or 
current value, depending on its implementation. If a parameter is defined and used for both the 
high-level and the lower-level target object, updating the parameter of the high-level target object 
may also cause the same parameter of the newly-created lower-level target object to be updated. 
Consult the appropriate Global Call Technology Guide for information about parameter usage.  
9.3.2
Parameter Definitions
GCLib or CCLib parameter descriptions can be found in the Global Call API Library Reference
Other target objects and their associated set IDs and parameters are described in the appropriate 
Global Call Technology Guide. The Global Call Technology Guides also includes which header 
files are required. 
All configurable parameters are of the following type: 
Static 
parameters that are predefined in header files with a fixed set ID and parameter ID 
 Every parameter is further defined by the software module as one of the following update 
conditions: 
read-only 
parameter is not allowed to be changed by the application 
update immediately 
parameter is updated immediately upon a set request 
update-at-null call state 
parameter is only allowed to be updated at the Null call state (that is, there are no active calls). 
This parameter is updated after a set request is made and when the call state is Null. 
See 
, on page 114 and the appropriate 
Global Call Technology Guide for detailed information.