Data commit

Task/Mouse-position/C/mouse-position.c

@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <X11/Xlib.h>
+
+int main()
+{
+  Display *d;
+  Window inwin;      /* root window the pointer is in */
+  Window inchildwin; /* child win the pointer is in */
+  int rootx, rooty; /* relative to the "root" window; we are not interested in these,
+                       but we can't pass NULL */
+  int childx, childy;  /* the values we are interested in */
+  Atom atom_type_prop; /* not interested */
+  int actual_format;   /* should be 32 after the call */
+  unsigned int mask;   /* status of the buttons */
+  unsigned long n_items, bytes_after_ret;
+  Window *props; /* since we are interested just in the first value, which is
+		    a Window id */
+
+  /* default DISPLAY */
+  d = XOpenDisplay(NULL);
+
+  /* ask for active window (no error check); the client must be freedesktop
+     compliant */
+  (void)XGetWindowProperty(d, DefaultRootWindow(d),
+			   XInternAtom(d, "_NET_ACTIVE_WINDOW", True),
+			   0, 1, False, AnyPropertyType,
+			   &atom_type_prop, &actual_format,
+			   &n_items, &bytes_after_ret, (unsigned char**)&props);
+			
+  XQueryPointer(d, props[0], &inwin,  &inchildwin,
+		&rootx, &rooty, &childx, &childy, &mask);
+  printf("relative to active window: %d,%d\n", childx, childy);
+
+  XFree(props);           /* free mem */
+  (void)XCloseDisplay(d); /* and close the display */
+  return 0;
+}