To create an embedded window, authors enter a reference of the following form in the topic file:
{ewx DLL-name, window-class, author-data}
In this string:
x is a character specifying the alignment of the window: l for a left-aligned window, r for a right-aligned window, or c for a character-aligned window.
DLL-name is the name of the DLL that controls the embedded window.
window-class is the name of the embedded window class as defined in the source code for the DLL.
author-data is an arbitrary string, which the Viewer passes to the window when it creates the window. This string can be one or more substrings separated by any punctuation mark except a comma. The DLL is responsible for parsing this string. The string is terminated by the closing brace (}).