mouse moving

moveit.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
#include <X11/extensions/XTest.h>

Window findWindow(Display *display, Window window, const char *name) {
    Window root, parent, *children;
    unsigned int numChildren;
    char *windowName;

    if (XFetchName(display, window, &windowName) > 0 && windowName != NULL) {
        if (strcmp(windowName, name) == 0) {
            XFree(windowName);
            return window;
        }
        XFree(windowName);
    }

    if (XQueryTree(display, window, &root, &parent, &children, &numChildren) == 0) {
        return 0;
    }

    for (unsigned int i = 0; i < numChildren; i++) {
        Window found = findWindow(display, children[i], name);
        if (found != 0) {
            XFree(children);
            return found;
        }
    }

    XFree(children);
    return 0;
}

Window findXfreerdpWindow() {
    Display *display = XOpenDisplay(NULL);
    if (display == NULL) {
        fprintf(stderr, "Unable to open X display\n");
        return 0;
    }

    Window rootWindow = DefaultRootWindow(display);
    Window xfreerdpWindow = findWindow(display, rootWindow, "FreeRDP: 172.16.15.2:2021");

    XCloseDisplay(display);

    return xfreerdpWindow;
}

void sendMouseMovementEvent(Display *display, Window window, int x, int y) {
    XEvent event;
    memset(&event, 0, sizeof(event));

    event.type = MotionNotify;
    event.xmotion.display = display;
    event.xmotion.window = window;
    event.xmotion.root = DefaultRootWindow(display);
    event.xmotion.subwindow = window;
    event.xmotion.time = CurrentTime;
    event.xmotion.x = x;
    event.xmotion.y = y;
    event.xmotion.state = 0;
    event.xmotion.is_hint = NotifyNormal;

    XSendEvent(display, window, True, PointerMotionMask, &event);
    XFlush(display);
}

void sendKeyPress(Display *display, Window window, KeyCode keyCode) {
    XEvent event;
    memset(&event, 0, sizeof(event));

    event.type = KeyPress;
    event.xkey.display = display;
    event.xkey.window = window;
    event.xkey.root = DefaultRootWindow(display);
    event.xkey.subwindow = window;
    event.xkey.time = CurrentTime;
    event.xkey.keycode = keyCode;
    event.xkey.same_screen = True;

    XSendEvent(display, window, True, KeyPressMask, &event);
    XFlush(display);

    event.type = KeyRelease;
    event.xkey.time = CurrentTime;

    XSendEvent(display, window, True, KeyReleaseMask, &event);
    XFlush(display);
}

int main() {
    Window xfreerdpWindow = findXfreerdpWindow();
    if (xfreerdpWindow == 0) {
        printf("xfreerdp window not found\n");
        return 1;
    }

    Display *display = XOpenDisplay(NULL);
    if (display == NULL) {
        fprintf(stderr, "Unable to open X display\n");
        return 1;
    }

    int rootX, rootY, winX, winY;
    Window root, child;
    unsigned int mask;

    for(;;)
    {
        // Get the current mouse position
        XQueryPointer(display, DefaultRootWindow(display), &root, &child, &rootX, &rootY, &winX, &winY, &mask);
        
        // Add a random offset to the coordinates
        srand(time(NULL));
        int offsetX = rand() % 10;
        int offsetY = rand() % 10;
        
        int newX = winX + offsetX;
        int newY = winY + offsetY;

        // Send the new mouse position to the window
        sendMouseMovementEvent(display, xfreerdpWindow, newX, newY);

        usleep(100);

        // Send mouse position back to the window
        sendMouseMovementEvent(display, xfreerdpWindow, winX, winY);

        sleep(60);
    }

    XCloseDisplay(display);

    return 0;
}