Each windowing routine begins with “W_” (or “%W_” in the case of %W_INFO). Each windowing subfunction begins with “WX_,” where X is the first letter of the name of the routine to which the function belongs. For example, all of the functions for W_AREA begin with “WA_,” all of the functions for W_BRDR begin with “WB_,” and so forth.
Manipulate the processing and display areas
Control window borders, titles, and their attributes
Retrieve or load the application window caption
Control window display and input functions
Manipulate field sets within a window
Get information about the windowing system
Get information about the windowing system
Initialize the windowing system
Restore a window that was previously compressed
