ITMSMCPOptionalAttribute Interface

Marks a parameter as optional and carries the value used when the caller omits it.

API unit family: TMS.MCP.Attributes Extends: ITMSMCPCustomAttribute

Syntax

ITMSMCPOptionalAttribute = interface(ITMSMCPCustomAttribute)

Remarks

A parameter is published as required unless this attribute is applied. Delphi default parameter values are not exposed through RTTI, so the fallback value has to be repeated in the attribute: [TTMSMCPOptionalAttribute(100)] on a parameter declared as ACount: Integer = 100. When the caller omits the argument the value stored here is passed to the method instead.

Properties

Name	Description
Value	Value passed to the method when the caller omits the argument.

Methods

Name	Description
GetValue	Returns the value passed to the method when the caller omits the argument.