OPC Studio User's Guide and Reference
IsValidCookie Method



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.AlarmsAndEvents Namespace > AEUtilities Class : IsValidCookie Method
The cookie to be tested.
Determines whether a given cookie value is valid in OPC Alarms&Events.
Syntax
'Declaration
 
<PureAttribute()>
Public Shared Function IsValidCookie( _
   ByVal cookie As Long _
) As Boolean
'Usage
 
Dim cookie As Long
Dim value As Boolean
 
value = AEUtilities.IsValidCookie(cookie)
[Pure()]
public static bool IsValidCookie( 
   long cookie
)
[Pure()]
public:
static bool IsValidCookie( 
   int64 cookie
) 

Parameters

cookie
The cookie to be tested.

Return Value

true if cookie is a valid cookie; false otherwise.
Remarks

This method is pure, i.e. it does not have observable side effects.

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also