xlib

问题 I am currently porting one of my applications from Xlib to libxcb and I am having a bit trouble finding informations on the XInput2 extension I use at some point. Is there an XInput2 implementation in libxcb? If yes, where can I find the documentation. Currently I am having trouble for example with this functions: XIQueryDevice , XISelectEvents . These are mainly the functions I use. Maybe someone can point out the documentation for me or provide me a very small example to get started. 回答1:

问题 I'm making some program with python3 and XLib. On my PC with Ubuntu 14.04 everything works fine but when I try to run my app in my notebook with manualy installed Xorg I get exception: Xlib.error.DisplayConnectionError: Can't connect to display ":0": b'No protocol specified\n' on line: self.__display = Xlib.display.Display() What's going on here? How to fix this that it could work on every Linux? Edit: This does not look like duplicate of X11: run a gnome app as another user. On my both

问题 Currently I am in charge of developing a (C++) window class for a little project; the goal is to keep dependencies at a bare minimum. The implementation for Win32/WinAPI works as supposed, however, I am struggling when it comes to Linux/XCB. I am aware, that I am able to check the "_NET_WM_STATE" property, however, the documentation doesn't specify any event, which would occur when the window is being maximized or minimized. The Extended Window Manager Hints specification doesn't seem to

问题 I have a fairly simple "Hello World" in X11 at end of question. But when it exits I get the run time error messages below: $ ./xtest XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0" after 9 requests (7 known processed) with 0 events remaining. So I tried handling the wmDeleteMessage myself, and I was able to stop the window from closing, so i know I am getting the event correctly. Than I added a XDestroyWindow() to the event handling and I get new errors. X Error of

问题 I have a fairly simple "Hello World" in X11 at end of question. But when it exits I get the run time error messages below: $ ./xtest XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0" after 9 requests (7 known processed) with 0 events remaining. So I tried handling the wmDeleteMessage myself, and I was able to stop the window from closing, so i know I am getting the event correctly. Than I added a XDestroyWindow() to the event handling and I get new errors. X Error of

来源： https://stackoverflow.com/questions/16400937/click-through-transparent-xlib-windows

来源： https://stackoverflow.com/questions/16400937/click-through-transparent-xlib-windows

问题 How can I set the cursor for the root window (or any other window) in a python application using Xlib? I have an instance of display and window (the root window). Using the C bindings; I could use XDefineCursor with a cursor I have created with XCreatePixmapCursor. How do I do the same with the python bindings? I want to be able to use a default cursor, or a custom cursor. 回答1: There are two things you want to keep in mind when you need to find the python-xlib equivalent of any libX11

问题 I want to know if it is possible to invert the colors of a region using Xlib. A region may be a rectangular area defined by two co-ordinates (x1, y1 to x2, y2). Below code is the latest modified version of the script that is used to invert a portion of active window, as per suggestions by JvO import Xlib from Xlib import X, display, Xutil d = display.Display() screen = d.screen() bgsize = 20 act_win = d.get_input_focus().focus wmname = act_win.get_wm_name() wmclass = act_win.get_wm_class() if

问题 I am writing c++ library in Linux using gcc. Program opens web pages in new browser windows with system("firefox https://www.webpage.com"); After that I use xlib to determine identifiers of each opened browser window. Then program raises firefox windows one by one using XRaiseWindow(display, window) in order to make a screenshot of each window and OCR. But if I close browser window manually and try to use XRaiseWindow with the corresponding identifier it generates BadWindow error and