OPC Studio User's Guide and Reference
ObtainItemVtq(DAItemMapping) Method



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess.LiveMapping Namespace > DAMapper Class > ObtainItemVtq Method : ObtainItemVtq(DAItemMapping) Method
An item mapping of a VTQ member.

The value of this parameter cannot be null (Nothing in Visual Basic).

Obtains OpcLabs.EasyOpc.DataAccess.DAVtq for an item source, given an item mapping of a VTQ member.
Syntax
'Declaration
 
<NotNullAttribute()>
Protected Overloads Shared Function ObtainItemVtq( _
   ByVal vtqMapping As DAItemMapping _
) As DAVtq
'Usage
 
Dim vtqMapping As DAItemMapping
Dim value As DAVtq
 
value = DAMapper.ObtainItemVtq(vtqMapping)
[NotNull()]
protected static DAVtq ObtainItemVtq( 
   DAItemMapping vtqMapping
)
[NotNull()]
protected:
static DAVtq^ ObtainItemVtq( 
   DAItemMapping^ vtqMapping
) 

Parameters

vtqMapping
An item mapping of a VTQ member.

The value of this parameter cannot be null (Nothing in Visual Basic).

Return Value

The arguments assembled from the item source and the item mapping.

This method never returns null (Nothing in Visual Basic).

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