QuickOPC User's Guide and Reference
TypeFromVarType Method



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.ComInterop Namespace > VarTypeUtilities Class : TypeFromVarType Method
The VarType for which the corresponding CLR (.NET) type should be determined.
Determines a CLR (.NET) System.Type that corresponds to a given OLE automation VarType .
Syntax
'Declaration
 
<NotNullAttribute()>
Public Shared Function TypeFromVarType( _
   ByVal varType As VarType _
) As Type
'Usage
 
Dim varType As VarType
Dim value As Type
 
value = VarTypeUtilities.TypeFromVarType(varType)
[NotNull()]
public static Type TypeFromVarType( 
   VarType varType
)
[NotNull()]
public:
static Type^ TypeFromVarType( 
   VarType^ varType
) 

Parameters

varType
The VarType for which the corresponding CLR (.NET) type should be determined.

Return Value

The resulting System.Type. If it cannot be specifically determined, a typeof(Object) is returned.
Exceptions
ExceptionDescription

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

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