I'm making a small window manager based on: simplewm.py https://github.com/mpnordland/Mozzarella/blob/master/cheesewm.py~ I'm trying to get firefox working but have been unable to get the unmapp...

The only fact I know is that XImage is stored on the client side and the pixmaps are stored on the server side. Is it so simple? Then what is XY and Z Pixmaps and why X needs so many types of ima...

What's the difference between _NET_ACTIVE_WINDOW and XGetInputFocus() ? Do they always point to the same window? When use one over the other? Thanks.

Good afternoon everyone! I have been working on a project that requires a basic window without a titlebar. After browsing a bit on the web I came across this post create window without titlebar wit...

I'm trying to use C and xlib to send a fake keypress event to the window with focus, here's my code: #include <X11/Xlib.h> #include <X11/keysymdef.h> #define XK_A 0x041 int main() { ...

I want to make a very simple python 3 script that will generate a single keypress (F15). I don't want to use a bunch of libraries to do this as I only need one key to be pressed and don't need supp...

I've managed to iconify a window using XIconifyWindow, but haven't managed to later restore it. I tried the following: XMapRaised (display, window); And: XMapWindow (display, window); And: X...

My goal is to have a program that sleeps in the background but can be activated by the user via some "hotkey". From digging around the Xlib manual and the Xlib O'reilly manual, I gather that the co...

I need to display RAM-based framebuffer for a virtual GPU device that doesn't have real display connected to it. What I have is mmap'ed chunk of memory after DRM_IOCTL_MODE_MAP_DUMB in RGB32 format...

I try to use Xft, the tutorial, well let them calling that a tutorial... looks like it was written in a north korean camp... I also found this one. So let me try to do a step-by-step : // g++ XftT...

I'm developing a C++ application on embedded-linux and I need to display video from camera in it. I've used gstreamer to create a window and start the video capture (because it has hardware support...

I am getting stuck and don't know where to look further. I have a Java application and one of its functionality is to grab some specific windows (ie third party application windows) and host them ...

Is there any general concept or definition of what is a "color map" within computer graphics? You sometimes stumble upon this term in some libraries - so may I assume that color maps intend to have...

Goal I want to redirect the keyboard input to different windows depending on the key. Not all the key will be redirected to the same window, I can't use XSetInputFocus. First Attempt : XGrabKey...

I have the follow starting code to get a screenshot of a X window (the window can be covered, not visibled, or minimized). #include <stdlib.h> #include <stdio.h> #include <X11/Xlib...

What is the proper way to wait until an X11 window is mapped and viewable? Precisely, I want to wait until I can safely call XSetInputFocus() without running into any risks of the X server backfiri...

Almost every tutorial I find tells me to do this for my event loop: XEvent event; while (true) { XNextEvent(display, &event); switch (event.type) { case Expose: printf("Expose\n"); bre...

I want to build 32 bits applications on my Debian 64 bits environment. So, I'm trying to compile the Qt sources in order to get the 32 bits libraries. I am trying to use the following configure c...

I have found the following code (http://pastebin.com/rNkUj5V8), but I would rather use a direct lookup: import Xlib import Xlib.display def get_window_by_id(winid): mydisplay = Xlib.display.Disp...

I'm trying to write a program that would detect external monitors being plugged in and automatically enable and configure them through Xlib. I know that there is XRandr extension that allows this. ...

Good day! I have a little bit of troubles making a xlib project. Here is the structure of my project: [ Init ] [ Making some stuff ] [ Creating a timer thread (see code below) ] [ Main cycle (see...

I had installed OpenGL and freeglut in Ubuntu 10.04 and it worked fine in 10.04 and 10.10. But after I upgraded to 11.04, the applications I've developed using OpenGL is not running properly. They'...

I'm not sure why this happens, but any window I create using Xlib in C++ gives outputs an error to the terminal when I try to close is using the X button. I can close it programmatically with no er...

I've been trying and reading lots of resources on the internet, trying to find a way to get an UTF-8 keyboard (composed) input from a X Display. But I could not make it work. I have tried the exam...

as soon as i use display.grab_keyboard, no other window seems to know of its own focus. with the keyboardgrab running i can select other windows and even send keyevents to them, but if this window...