By Mr. Brian J. Keller
A pragmatic advisor to X Window Programming is a simple consultant that takes readers step-by-step via constructing functions utilizing X-Windows™. The booklet covers the Xt Intrinsics part of the X-Window process intimately and discusses the MIT Athena and OSF/Motif Widget units which are utilized in a few of the examples. issues coated contain C programming basics, textual content dealing with utilizing X, fonts, occasion dealing with in Xt, extending the Widget units (building on box Editor Widget), designing and developing an program, construction menus, printing aid, OSF/Motif (including the window arranger) and interclient conversation. 3 large appendices are incorporated: Widgets, Classing, and Exported capabilities; speedy Xt Reference consultant (X11R4); and speedy advisor to OSF/Motif Widgets. Any functions dressmaker drawn to constructing purposes with Xt will locate this ebook a important and enlightening source.
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Extra resources for A Practical Guide To X Window Programming: Developing Applications with the XT Intrinsics and OSF/Motif
2. 3. 4. Initialize the toolkit (XtInitialize()/XtAppInitialize()). Create the widgets (XtCreateWidget( )/XtCreateManagedWidget()). Realize the widgets (XtRealizeWidget()). Wait on events (XtMainLoop()). html (4 of 5) [13/12/02 18:08:51] A Practical Guide to X Window Programming: Developing Applications with the XT Intrinsics and OSF/Motif:Building Applications: Developing with Xt Figure 5-1 Application structure. html (5 of 5) [13/12/02 18:08:51] A Practical Guide to X Window Programming: Developing Applications with the XT Intrinsics and OSF/Motif:Building Applications: Developing with Xt A Practical Guide to X Window Programming: Developing Applications with the XT Intrinsics and OSF/Motif by Brian J.
They may be used for quick paints of screens to yield a smoother scrolling look. rinsics and OSF/Motif:Basic X Graphics: Text, Fonts, Bitmaps, and Colors (discussed later in this chapter). 2. Graphics Context Graphics context refers to the information that Xlib primitives use to know how to perform a painting operation. Things such as foreground and background colors, line width, line style, fill style, font, and graphics function are a few items used in graphic operations. The argument “gc” in the two routines XDrawString( ) and XDrawImageString( ) is of type GC.
The class part defines those things that all widgets that are members of that class will use. Exposure handling, initialization, resizing, and resource setting are a few examples of methods or procedures that belong to the class part. In the instance part you find data specific to a particular widget’s instance. The window id, the x and y offsets, and the border color are examples of instance resources. html (4 of 4) [13/12/02 18:08:42] A Practical Guide to X Window Programming: Developing Applications with ...