QuickOPC User's Guide and Reference
AsOpaqueData Method (_SequenceData)



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.DataTypeModel.ComTypes Namespace > _SequenceData Interface : AsOpaqueData Method
The current generic data expressed as data of opaque data type.
Syntax
'Declaration
 
<CanBeNullAttribute()>
Function AsOpaqueData() As OpaqueData
'Usage
 
Dim instance As _SequenceData
Dim value As OpaqueData
 
value = instance.AsOpaqueData()
[CanBeNull()]
OpaqueData AsOpaqueData()
[CanBeNull()]
OpaqueData^ AsOpaqueData(); 
Remarks

Returns null if the current generic data is not of opaque data type.

This method has been introduced primarily for languages like PHP that do not allow down-casting.

Classes derived from OpcLabs.BaseLib.DataTypeModel.GenericData form following class hierarchy:

.

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