Volume 6A: Motif Programming Manual

Release 1.2 of the Motif toolkit introduces a number of new features, as well as many enhancements to existing

functionality. This section summarizes all of the changes in Motif 1.2 and refers you to other sections in the book for

more detailed information on specific changes. We also describe the changes that we made to the example programs

in the book to make them accurate with respect to Motif 1.2.

4.5.1 General Toolkit Changes

Many of the changes in Motif 1.2 affect the functionality of the toolkit as whole, rather than individual widget classes.

This release demonstrates performance improvements, as the code has been reorganized to improve locality and

dynamic memory usage has been reduced. The toolkit also benefits from the improved performance of the X11R5

translation manager. Motif 1.2 provides a new header file, <Xm/XmAll.h>, that includes all of the public header files

for the toolkit. The <Xm/ExtObject.h>, <Xm/Traversal.h>, <Xm/VaSimple.h>, and <Xm/VendorE.h> header files that

are present in Motif 1.1 are obsolete in Motif 1.2. The addition of internationalization capabilities is one of the major

enhancements provided by Motif 1.2. An internationalized application can run in different language environments

without any modification. Most of the support for developing internationalized applications in Motif is based on

features provided by X11R5. Xlib provides support for internationalized text output, interclient communication, and

localization of the resource database, while Xt ...