Distributed Tuning Interface Reference : PvGetValueLimit()
 
PvGetValueLimit()
Retrieves upper and lower limits for settings of long type.
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 PvGetValueLimit(
   BTI_LONG           hConnection,
   BTI_ULONG          settingID,
   BTI_LONG_PTR       pMaxValue,
   BTI_LONG_PTR       pMinValue);
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().
Out
pMaxValue
Address of a long integer that receives the upper limit value. If NULL is passed here, no value will be returned.
If a negative value is returned, interpret it as follows:
/* Maximum valid memory or disk size */P_MAX_MEM_DISK_SIZE -129
/* Maximum size limited by available disk space */P_MAX_LIMITED_BY_DISK -2
/* Maximum size limited by available memory */P_MAX_LIMITED_BY_MEMORY -1
Out
pMinValue
Address of a long integer that receives the lower limit value. If NULL is passed here, no value will be returned.
Return Values
 
P_OK
The operation was successful.
P_E_INVALID_HANDLE
Invalid connection handle.
P_E_INVALID_DATA_TYPE
The requested setting is not of long type.
P_E_FAIL
Failed for other reasons.
Remarks
The following precondition 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()
PvGetLongValue()
PvSetLongValue()
PvDisconnect()
PvStop()