![]() The argument value is ignored and merely ensures that the only code that is executed is the construction phase is the basic NSObject allocation and runtime type registration. ![]() If this is not the case, developers should instead chain to the proper constructor in their class. ![]() In general, if the developer's constructor invokes the NSObjectFlag.Empty base implementation, then it should be calling an Objective-C init method. It is the developer's responsibility to completely initialize the object if they chain up using the NSObjectFlag.Empty path. With constructors generated by the binding generator this means that it manually invokes one of the "init" methods to initialize the object. The PDFKit API is designed to be simple, so generating complex documents is often as. The API embraces chainability, and includes both low level functions as well as abstractions for higher level functionality. Once the allocation has taken place, the constructor has to initialize the object. PDFKit is a PDF document generation library for Node and the browser that makes creating complex, multi-page, printable documents easy. This constructor is typically used by the binding generator to allocate the object, but prevent the actual initialization to take place. The actual initialization of the object is up to the developer. When developers invoke the constructor that takes the NSObjectFlag.Empty they take advantage of a direct path that goes all the way up to NSObject to merely allocate the object's memory and bind the Objective-C and C# objects together. This is required to implement the two-step initialization process that Objective-C uses, the first step is to perform the object allocation, the second step is to initialize the object. This constructor should be called by derived classes when they completely construct the object in managed code and merely want the runtime to allocate and initialize the NSObject. Unused sentinel value, pass NSObjectFlag.Empty.
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