eagduru Userís Guide

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Contents

Overview

Etymology

The Old English words for window were eagĢyrl, which literally means "eye-hole," and eagduru, "eye-door." The former has a better meaning for windows that are used to view through, as opposed to those that let air in. But, I didn't want to worry about having to type the "Ģ" (thorn) character, which is no longer in the English alphabet and not in ASCII.

Threading Issues

Housekeeping Issues

One Way road sign All instances of concrete types derived from message_tap, which is a base class of eagduru, must use new to create instances. The code within the class uses smart pointers and will delete this object when the reference count drops to zero. So, you must not create an instance on the stack or in static data.

Instances cannot be assigned or copied.

Instances use smart pointers to control their lifetime. As you would expect, the object is destroyed when the last smart pointer holding it is dropped. However, the Windows primitive HWND window also participates in the ownership of this object. Effectively (though the actual implementation is more circuitous), the window contains a smart pointer to this object. The interesting ramifications of this are:

How to Use

Derive Your Class