Describes the new tooltip features provided by Internet Explorer 4.0 and Windows 98. These features include custom drawing; the ability to have the tooltip track along with the mouse (probably not a good idea); and the ability to set margins, maximum width, and text and background colors.
Chapter 23, "Toolbars," has a good discussion about tooltips, primarily with respect to providing help for toolbars. There is also a good discussion of tooltips vs. balloon help and why tooltips are better. He describes tooltips as "one of the cleverest and most-effective user interface idioms I've ever seen."
Provides useful information on how to implement tooltips, data tips, and title tips using MFC.
Presents an MFC class to add tooltips to any MFC window.