This mainly summarizes the use and related configuration of Exceed. It is usually used to usually use a few, solved a long-awaited window FOCUS problem, it seems to explore new knowledge ... 1.understanding Xwindow, Xclient, XServer. Exceed is a XServer software, XServer is a program responsible for accepting customer requests, displays graphics requested on the screen, and notifying the client with a message (keyboard, mouse, window message). With Exceed, we can communicate directly from the PC side with UNIX hosts, get UNIX resources, better, more convenient, and safer use UNIX hosts. Exceed is responsible for controlling client programs such as DISPLAY, UNIX machines on a Windows machine, XTERM, DTWM (CDE Window Manager), usually connected to the Windows PC through the TCP 6000 port, and Exceed is bound to 6000 ports. And listen to messages from 6000 ports, at this time, the client XTERM can be connected to Exceed, and the XTERM request will get resources. If you enter characters in the XTERM window, Exceed will first notify the XTERM process, then XTERM will send a datagram, request Exceed, 'Display characters at the coordinate (100, 30), then display a rectangle as a cursor', so A character will appear when the XTERM window is displayed. Exceed supports a variety of fonts, supporting multiple XServer types, support X Clent, Window Management, Font RGB, XRDB, etc., supported compressed X protocol, with terminal simulation software package, high-performance graphical terminal support, security, The configuration is powerful, and the client starts support XDMCP (Query, Indirect, Broadcast), Passive, Xsession, Telnet, etc. 2.xWindow XWindows is a system that contains Client-Server, known as Xclient, XServer. XClient can be a program or window manager, Windows Manager, is used to manage windows, the size, move, close, etc. of the window. Each application (XTERM NETSCAPE, XCLOCK) can find out to make yourself through the "Display" environment variable. If DISPLAY is set to Computer1: 0.0, while working on Computer2, XTERM will pop up in the computer1 screen, so we can work at the same time on multiple Unix hosts. You can configure it using .xdefaults, .xdefault can configure the style of the foreground color, background color, font, etc. X program, without having to write shell script. You can use XRDB ~ / .xdefaults to take effect after configuration. You can go to www.x.org by learning XLIB more in-depth understanding. 1) XwinInfo gets the ID and other information of the window. 2) xev detection window event Performance procedures, Xconfig Configure Exceed.
