99 lines
2.7 KiB
Rust
99 lines
2.7 KiB
Rust
// x11-rs: Rust bindings for X11 libraries
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// The X11 libraries are available under the MIT license.
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// These bindings are public domain.
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extern crate x11_dl;
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use std::ffi::CString;
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use std::mem;
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use std::os::raw::*;
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use std::ptr;
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use x11_dl::xlib;
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fn main() {
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unsafe {
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// Load Xlib library.
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let xlib = xlib::Xlib::open().unwrap();
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// Open display connection.
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let display = (xlib.XOpenDisplay)(ptr::null());
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if display.is_null() {
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panic!("XOpenDisplay failed");
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}
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// Create window.
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let screen = (xlib.XDefaultScreen)(display);
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let root = (xlib.XRootWindow)(display, screen);
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let mut attributes: xlib::XSetWindowAttributes = mem::MaybeUninit::uninit().assume_init();
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attributes.background_pixel = (xlib.XWhitePixel)(display, screen);
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let window = (xlib.XCreateWindow)(
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display,
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root,
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0,
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0,
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400,
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300,
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0,
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0,
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xlib::InputOutput as c_uint,
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ptr::null_mut(),
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xlib::CWBackPixel,
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&mut attributes,
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);
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// Set window title.
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let title_str = CString::new("hello-world").unwrap();
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(xlib.XStoreName)(display, window, title_str.as_ptr() as *mut c_char);
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// Hook close requests.
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let wm_protocols_str = CString::new("WM_PROTOCOLS").unwrap();
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let wm_delete_window_str = CString::new("WM_DELETE_WINDOW").unwrap();
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let wm_protocols = (xlib.XInternAtom)(display, wm_protocols_str.as_ptr(), xlib::False);
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let wm_delete_window =
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(xlib.XInternAtom)(display, wm_delete_window_str.as_ptr(), xlib::False);
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let mut protocols = [wm_delete_window];
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(xlib.XSetWMProtocols)(
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display,
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window,
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protocols.as_mut_ptr(),
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protocols.len() as c_int,
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);
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// Show window.
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(xlib.XMapWindow)(display, window);
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// Main loop.
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let mut event: xlib::XEvent = mem::MaybeUninit::uninit().assume_init();
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loop {
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(xlib.XNextEvent)(display, &mut event);
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match event.get_type() {
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xlib::ClientMessage => {
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let xclient = xlib::XClientMessageEvent::from(event);
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if xclient.message_type == wm_protocols && xclient.format == 32 {
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let protocol = xclient.data.get_long(0) as xlib::Atom;
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if protocol == wm_delete_window {
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break;
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}
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}
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}
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_ => (),
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}
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}
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// Shut down.
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(xlib.XCloseDisplay)(display);
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}
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}
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