1 files changed, 45 insertions, 0 deletions
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..d80e968
--- /dev/null
+++ b/main.c
@@ -0,0 +1,45 @@
+#include <X11/extensions/XInput2.h>
+
+#include <stdio.h>
+
+static void xi_select_events(int);
+
+static Display *d;
+static Window r; // root-window
+
+void xi_select_events(const int event) {
+    unsigned char mask[3] = {None};
+    XISetMask(mask, event);
+    XIEventMask event_mask;
+    event_mask.deviceid = XIAllMasterDevices;
+    event_mask.mask_len = sizeof(mask);
+    event_mask.mask = mask;
+    XISelectEvents(d, r, &event_mask, 1);
+}
+
+int main(void) {
+    if (!(d = XOpenDisplay(NULL))) {
+        printf("Couldn't open Display.\n");
+        return 1;
+    }
+    r = XDefaultRootWindow(d);
+    xi_select_events(XI_RawKeyPress);
+    XEvent e;
+    XGenericEventCookie *c;
+    while (!XNextEvent(d, &e)) {
+        if (!XGetEventData(d, (c = &e.xcookie)))
+            continue;
+        switch (c->evtype) {
+            case XI_RawKeyPress:
+                xi_select_events(XI_RawMotion);
+                XFixesHideCursor(d, r);
+                break;
+            case XI_RawMotion:
+                xi_select_events(XI_RawKeyPress);
+                XFixesShowCursor(d, r);
+                break;
+        }
+        XFreeEventData(d, c);
+    }
+    XCloseDisplay(d);
+}