I'm a newbie to x11. As part of my final project, i have to keep track of all copy paste's in a single machine(from which window to which window) using clipboard in linux X window system. For that i think i need to work with open source x11. But i completely don't know where to start. Which module of x11 should i deal with, to handle the inter-client communication of the x window system. http://www.x.org/releases/X11R7.7/src/
If possible please provide me some good source for developers in inter-client communications of x11. I found so many docs in x.org, but nothing is clearly given regarding the implementation.
Cut-and-paste in X11 is based on window properties and selections. This is a very good intro to X11 paste buffers/clipboards/selections. Read about associated selections/properties, then use XSelectInput and monitor property/selection changes.
See also:
X11 Get Clipboard Text
Related
I have a few windows on my linux machine using the xfce4 desktop enviorment.
I wish to have a grid-like view where i can see only the part of each window im intrested in.
An example for the general vision:
see a script running without the window borders on terminal across the header
see work status of F#H client out of the advenced client view in the middle left
see only the turrents status list of qBittorrent at middle right
have another terminal at footer (again without header/borders)
My best way to describe it shortly is to generate a view from selective parts of windows.
Added a picture for illustration
Is there any way of doing such thing in a practical way? Am i missing out on a great software?
There are several tiling helpers for Xfce.
Perhaps try xpytile , which is a tiling add-on for Xfce. It offers
automatic tiling, manual tiling and can simulaneously resize side-by-side windows (like AeroSnap for MS-Windows).
Is there a program to explore X window hierarchy? Anything like Spy++ of MS
(http://msdn.microsoft.com/en-us/library/dd460727.aspx)
You could write one. Use XQueryTree starting from the root window.
Also, study carefully EWMH. It might have something relevant (e.g. _NET_CLIENT_LIST)
At last, code your own window manager, or adapt an existing one to fit your needs. A window manager has to know the list of top-level windows.
Remember that some X top-level windows might have been opened by some remote X11 client application running on a different machine (e.g. thru ssh -X)
Look also into xps and xwininfo; see this related question.
I want to implement a simple specialized window manager for presentations (not user-controllable) that supports only the following operations:
Moving and resizing of windows
Switching desktops
Starting applications not on current desktop (in background) without disrupting current image.
I don't need any user input, button/titles, ...
What existing window manager should I use as example? There are many little "hello world" window managers, but they usually does not support desktop switching.
You don't need to reimplement the wheel.
openbox will do everything you mention and more besides.
Simply edit the rc.xml to disable the root menu, and re-launch.
Openbox also allows per app setting so that certain applications can open on a particular desktop by default, or with a particular size, or open hidden.
It also supports wildcards in the window selection, so that settings can apply to all windows.
devilspie2 is a window matching utility that can perform actions whenever a window opens.
It is highly hackable and the code is available on github. It will match windows by name/class/etc when they open, and perform actions on them. (including matching all windows and moving them to a different desktop. It will work with most window managers.
Based on the original devilspie which does not have Lua scripting, but is configured using s-exprs instead.
xdotool will also allow you to perform complex actions on windows without hacking any code. It will even fake user input (mouse/kbd) if you need it.
There are a few window managers written in Python that could be good starting points. Qtile and whimsy both describe themselves as hackable.
I am playing with X-windows, Xlib, etc. I want to create a X-window independent of the window-manager: meaning that I do not want the WM to put a frame, minimize-maximize, close, menu, title-bar, etc. in the window. I want to create a vanilla X window. How?
[edit]
Alternatively, how to I capture those events so my windowing app can at least die without an error?
[edit] ninjalj's answer led me to the following info:
ICCCM
Lots & lots of info :) cool!
Tutorial
I think what you want is an override-redirect window. Just set the override-redirect on your XSetWindowAttributes struct (and the corresponding bit on valuemask) when creating the window.
I am working on old Motif-based application for Linux. I want to be able to programmatically change the active window of our application. I can redirect the input by using XSetInputFocus() function and the keyboard input start to go there, but XReconfigureWMWindow() and XRaiseWindow() functions just don't work.
I've read that Window Managers try to stop this behaviour, so tried to disable configure redirection, but this doesn't work either. Any ideas how to make one of my own windows on top of the window stack?
There is a tiny program called wmctrl available (at least in Debian/Ubuntu it is in standard distribution) which is able to perform many operations on windows and desktops, and handles plenty of window managers. I'd suggest testing whether it works in your environment, and if so, peeking at its sources.
You may find the answer to this is dependent on the Window Manager the user is using, or even what settings they've given to the Window Manager. I like to set my Window Managers to do "focus follows mouse", which means you can't send the focus to a window that I haven't put my mouse on, unless you also warp the mouse there (is that function called XWarpMouse?).