OPCHDA.NET Reference Manual
QueryCapabilities Method
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OpcHDAWrapperUA.Net4 Assembly > OPCHDA.NET Namespace > OpcHDAServer Class : QueryCapabilities Method

Glossary Item Box

public int QueryCapabilities( out UpdateCapabilities capabilities )

Overload List

OverloadDescription
QueryCapabilities(AnnotationCapabilitiesAsync) This function specifies the methods that the server supports.  
QueryCapabilities(OPCHDA_UPDATECAPABILITIES)

This synchronous function specifies the update methods that the server supports.

It returns an enumerator as falsely defined in the specification, allowing only the indication of one capability. There is a method overload returning a bit mask.

 
QueryCapabilities(UpdateCapabilities)

This synchronous function specifies the update methods that the server supports.

It returns a bit mask allowing the server to indicate multiple capabilities. The specification falsely defines an enumerator result. The method overload to use depends on the server.

 
QueryCapabilities(OPCHDA_ANNOTATIONCAPABILITIES)

This synchronous function specifies which update methods the server supports. It is a required method for all servers which support the OPCHDA SyncAnnotations interface.

This overload return an enum enumerator as falsely defined in the specification.

 
QueryCapabilities(AnnotationCapabilities)

This synchronous function specifies which update methods the server supports. It is a required method for all servers which support the OPCHDA SyncAnnotations interface.

This overload return a bit map allowing the server to indicate multiple capabilities. The specification falsely defines an enumerator.

 
QueryCapabilities(UpdateCapabilitiesAsync) This function specifies the update methods that the server supports.  

Requirements

Target Platforms: Windows 7/8/10, Windows Server 2008/2012/2016, .NET 4.x

See Also

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