Developer Reference : Platform Management : Distributed Tuning Interface (DTI) Guide : Distributed Tuning Interface Reference : PvGetSelectionValue()
 
PvGetSelectionValue()
Retrieves the value for a selection type setting, from the data source specified by whichData.
Header File: config.h (See also Header Files)
Function First Available In Library: w3dbav75.dll (Windows), libpsqldti.so (Linux), libpsqldti.dylib (macOS) (See also Link Libraries)
Syntax
BTI_SINT PvGetSelectionValue(
   BTI_LONG           hConnection,
   BTI_ULONG          settingID,
   BTI_ULONG_PTR      pNumItems,
   BTI_LONG_PTR       pValue,
   BTI_SINT           whichData);
Arguments
 
In
hConnection
Connection handle that identifies the server. Connection handles are obtained with the PvConnectServer() function.
In
settingID
Unique identifier for the setting. A list of settings can be obtained from PvGetSettingList().
In/Out
pNumItems
Address of an unsigned long that specifies the array size on input, and receives the number of individual selection items on return.
Out
pValue
Array of individual selection indexes.
In
whichData
Flag to indicate which value is requested:
PVDATA_DEFAULT returns default value.
PVDATA_CURRENT returns current value
Return Values
 
P_OK
The operation was successful.
P_E_INVALID_HANDLE
Invalid connection handle.
P_E_NULL_PTR
Call with NULL pointer.
P_E_INVALID_DATA_TYPE
The requested setting is not of string type.
P_E_BUFFER_TOO_SMALL
The array size is too small. In this case, the required size is returned in pNumItems.
P_E_FAIL
Failed for other reasons.
Remarks
The following preconditions must be met:
Connection established by PvConnectServer() or if you are performing the operation on a local machine, P_LOCAL_DB_CONNECTION may be used as the connection handle.
See Also
PvStart()
PvConnectServer()
PvGetCategoryList()
PvGetSettingList()
PvDisconnect()
PvStop()