x11

问题 My question is how to specify OpenGL version in X window system and in addition remove those deprecated functions. My GL version is 4.3. I know how to do that using SDL or glut. 回答1: First you must know how to create a OpenGL context using bare X11 / Xlib first. Have a look at this code https://github.com/datenwolf/codesamples/blob/master/samples/OpenGL/x11argb_opengl/x11argb_opengl.c To make this actually select a modern version profile this code block is used #if USE_GLX_CREATE_CONTEXT

问题 I have problems reading some XWindow ICCCM Properties. The problem actually is when i try to read _NET_WM_STATUS property. The function i'm using is: int get_property_value(Display* display, Window window,char *propname, long max_length, unsigned long *nitems_return, unsigned char **prop_return){ int result; Atom property; Atom actual_type_return; int actual_format_return; unsigned long bytes_after_return; unsigned char* prop_to_return; unsigned long n_items; printf("-----GET_PROPERTY_VALUE--

问题 How can I get the window ID of the terminal that my shell script is running in? Background: I need to write a script to do something based on which virtual desktop it is running in. To get the virtual desktop (not current desktop, I may change it while the script is running), I need the window ID of the terminal that the script is running in. If the script is not run from a terminal, it should fail with an error. 回答1: I know very little of X11, but running the env command in my terminal, I

问题 I was using WinAPI SetWindowsHookEx and OS X objective-c [NSEvent addLocalMonitorForEventsMatchingMask:handler:] which both set up a callback and then i run the event loop endlessly and the callback triggers whenver it needs. I insert this hook into just my process/application (but it would be cool if I could do system wide as well). As users do mouse combinations I track them, and if a combination matches a certain pattern, it blocks the last mouse event and does a certain function. I was

问题 I'm grabbing Alt+Space global hotkey using xcb_grab_key , as follows: xcb_key_symbols_t *keysyms = xcb_key_symbols_alloc(c); xcb_keycode_t *keycodes = xcb_key_symbols_get_keycode(keysyms, XK_space), keycode; // add bindings for all screens xcb_screen_iterator_t iter; iter = xcb_setup_roots_iterator (xcb_get_setup (c)); for (; iter.rem; xcb_screen_next (&iter)) { int i = 0; while(keycodes[i] != XCB_NO_SYMBOL) { keycode = keycodes[i]; xcb_grab_key(c, true, iter.data->root, XCB_MOD_MASK_ANY,

问题 I've got a rather large and rather old C application that has been ported to Linux. I'm in charge of getting mouse cursors to work correctly, but having some issues. I was able to convert most of the cursors we require to using the standard cursors provided by XFontCursor by using something like: gCursorTable[waitCurs] = XCreateFontCursor(gDisplay, XC_watch); ... XDefineCursor(gDisplay, WHostWindow(w), gCursorTable[cursor]); XFlush(gDisplay); This is fine for cursors which have analogs in the

问题 So far I've found two approaches: For each root window (default screen, specific screen, all screens, etc), list each immediate child. Search each immediate child recursively for a window with the WM_STATE property; that window becomes the top-level application window of the immediate child and all recursion can stop. If no window within the hierarchy of the immediate child has the WM_STATE property, assume the immediate child is itself the top-level application window. Use xcb_get_property ,

问题 I am trying to create an overlay window above another running application. Let's say firefox. I implemented by using Xcreatewindow win = XCreateWindow( display, *firefoxwindow, 50, 300, 400, 400, 0, visualinfo.depth, InputOutput, visualinfo.visual, CWColormap|CWEventMask|CWBackPixmap|CWBorderPixel, &attr ) ; I searched *firefoxwindow by using XQueryTree() and then followed this code https://gist.github.com/903479 The result is the transparent window when I use the XRoot as parent. But, when I

问题 Is there a simple way to detect mouse or keyboard activity in Linux or Xorg or Qt4 or Kde4 environment? Obviously not only on a particular window but in the entire Xorg desktop. 回答1: You can use the XScreenSaver extension ( man Xss ). It can provide you with values into this struct using the function XScreenSaverQueryInfo : typedef struct { Window window; /∗ screen saver window */ int state; /∗ ScreenSaver{Off,On,Disabled} */ int kind; /∗ ScreenSaver{Blanked,Internal,External} */ unsigned

问题 So I'm trying to incorporate the CImg image writing library into my XCode project However, the header file for the library contains the following include and XCode gives this error warning: #include <X11/Xlib.h> Error: File not found My laptop is running OSX Lion 10.8.2 and apparently, apple took away X11 for Lion, so I went on this site and downloaded XQuartz because that's what it said to do on the Apple Support page. So after the installation, I restarted my computer and tried to run my