Cycle through windows using mouse wheel.

Question

Hi,
I want to get a set up that allows me to cycle through open windows by holding down the right mouse button and rolling the scroll wheel in xfce. Does anyone have any advice on how I might do this?
Thanks.

Answer 1

Here's something I hacked up based on some other code I have, however I haven't tested it so I have no idea if it will work, also the right click will currently be passed on to the active window which could be annoying.
If you want to try it, change the system() lines to match the xdotool command line you need, save as main.c, compile with "gcc -o scrollswitch main.c -lX11", run the resulting scrollswitch executable and cross your fingers
#include <X11/Xlib.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
int main()
Display *dpy;
XEvent ev;
int right_down = 0;
if (!(dpy = XOpenDisplay(NULL))) {
fprintf(stderr, "Could not open display %s", getenv("DISPLAY"));
// Guessing that 3
XGrabButton(dpy, 3, 0, DefaultRootWindow(dpy), True, ButtonPressMask, GrabModeSync, GrabModeAsync, None, None);
XGrabButton(dpy, 4, 0, DefaultRootWindow(dpy), True, ButtonPressMask, GrabModeSync, GrabModeAsync, None, None);
XGrabButton(dpy, 5, 0, DefaultRootWindow(dpy), True, ButtonPressMask, GrabModeSync, GrabModeAsync, None, None);
for (;;) {
XNextEvent(dpy, &ev);
if (ev.type == ButtonPress) {
if (ev.xbutton.button == 3) { /* Right click */
right_down = 1;
/* Grab pointer so we receive ButtonRelease */
XGrabPointer(dpy, DefaultRootWindow(dpy), True, PointerMotionMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
XAllowEvents(dpy, ReplayPointer, CurrentTime); /* Allow other apps to process this message */
if (right_down) {
if (ev.xbutton.button == 4) { /* Scroll up? */
system("xdotool alt shift tab"); // Fix this
if (ev.xbutton.button == 5) { /* Scroll down? */
system("xdotool alt tab"); // Fix this
} else {
XAllowEvents(dpy, ReplayPointer, CurrentTime); /* Allow other apps to process this message */
} else if (ev.type == ButtonRelease) {
if (right_down) {
XUngrabPointer(dpy, CurrentTime);
right_down = 0;
XCloseDisplay(dpy);
return 0;