The first task of a Motif application is to initialize the Intrinsics.
Most applications can perform the initialization by calling the routine XtAppInitialize .
An application can also do this by calling XtToolkitInitialize . Create an application context. Xt uses this construct to contain the information it associates with each instance of an application. Its purpose is to allow multiple instances of an application to run in a single address space. Most applications need only create an application context and pass it to Intrinsics routines that take an application context as an argument.