XUnmapWindow(3)


NAME

   XUnmapWindow, XUnmapSubwindows - unmap windows

SYNTAX

   int XUnmapWindow(Display *display, Window w);

   int XUnmapSubwindows(Display *display, Window w);

ARGUMENTS

   display   Specifies the connection to the X server.

   w         Specifies the window.

DESCRIPTION

   The XUnmapWindow function unmaps the specified window and causes the X
   server to generate an UnmapNotify event.  If the specified window is
   already unmapped, XUnmapWindow has no effect.  Normal exposure
   processing on formerly obscured windows is performed.  Any child window
   will no longer be visible until another map call is made on the parent.
   In other words, the subwindows are still mapped but are not visible
   until the parent is mapped.  Unmapping a window will generate Expose
   events on windows that were formerly obscured by it.

   XUnmapWindow can generate a BadWindow error.

   The XUnmapSubwindows function unmaps all subwindows for the specified
   window in bottom-to-top stacking order.  It causes the X server to
   generate an UnmapNotify event on each subwindow and Expose events on
   formerly obscured windows.  Using this function is much more efficient
   than unmapping multiple windows one at a time because the server needs
   to perform much of the work only once, for all of the windows, rather
   than for each window.

   XUnmapSubwindows can generate a BadWindow error.

DIAGNOSTICS

   BadWindow A value for a Window argument does not name a defined Window.

SEE ALSO

   XChangeWindowAttributes(3), XConfigureWindow(3), XCreateWindow(3),
   XDestroyWindow(3), XMapWindow(3) XRaiseWindow(3)
   Xlib - C Language X Interface





Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.





Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.


Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.





Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.


Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.





Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.


Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.