PvGetLongValue()
Retrieves the value for a long integer 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 PvGetLongValue(
BTI_LONG hConnection,
BTI_ULONG settingID,
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() .
Out
pValue
Address of a long integer variable that receives the setting value.
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 long integer type.
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.
To obtain the minimum and maximum values that the setting can accept, use the
PvGetValueLimit() function.
See Also
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