OPC Studio User's Guide and Reference
Implicit Type Conversion(VarTypes,VarType) Operator



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.ComInterop Namespace > VarType Class > Implicit Type Conversion Operator : Implicit Type Conversion(VarTypes,VarType) Operator
VarType object to be converted.

Because the VarType has an implicit conversion from System.Int32 and VarTypes, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use an integer (representing the numerical value of the COM VARTYPE), or an element of the VarTypes enumeration (or an allowed combination of VarTypes flags) in place of this parameter, and the corresponding data type specification will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the VarType Constructor(Int32) or VarType Constructor(VarTypes) constructor instead.

The value of this parameter can be null (Nothing in Visual Basic).

Converts VarType object to an enumerated value.
Syntax
'Declaration
 
Overloads Public Operator Widening CType( _
   ByVal varType As VarType _
) As VarTypes
'Usage
 
public VarTypes operator implicit( 
   VarType varType
)
public:
operator VarTypes ( 
   VarType^ varType
)

Parameters

varType
VarType object to be converted.

Because the VarType has an implicit conversion from System.Int32 and VarTypes, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use an integer (representing the numerical value of the COM VARTYPE), or an element of the VarTypes enumeration (or an allowed combination of VarTypes flags) in place of this parameter, and the corresponding data type specification will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the VarType Constructor(Int32) or VarType Constructor(VarTypes) constructor instead.

The value of this parameter can be null (Nothing in Visual Basic).

Return Value

Returns an enumerated value converted from the input argument.
Remarks

This operator is equivalent to ToVarTypes.

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

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