QueryEventCategories Method

Description

Finds out events categories supported by the server. Server descriptor is used for specifying the OPC server. Queries event categories for given event types.

DISPID (Dispatch ID):

For more information, see QueryEventCategories in .NET Reference.

Syntax

Visual Basic
Public Function QueryEventCategories( _ ByVal serverDescriptor As Variant, _ ByVal eventTypes As Long _ ) As AECategoryElementCollection

Visual Basic

Public Function QueryEventCategories( _
   ByVal serverDescriptor As Variant, _
   ByVal eventTypes As Long _
) As AECategoryElementCollection

Parameters

serverDescriptor
eventTypes

Return Type

See QueryEventCategories in .NET Reference.

Remarks

For remarks, see QueryEventCategories in .NET Reference.

Example

For examples, see QueryEventCategories in .NET Reference.