add xcb_util, set window name

Cargo.toml

@@ -17,3 +17,6 @@ xcb = "0.8.1"
 features = ["xcb"]
 version = "0.3.0"
 
+[dependencies.xcb-util]
+version = "0.2.0"
+features = ["image", "icccm", "ewmh", "misc"]

src/main.rs

@@ -14,6 +14,8 @@ pub mod log;
 use failure::Error;
 
 extern crate xcb;
+extern crate xcb_util;
+
 use std::mem;
 use std::slice;
 
@@ -89,6 +91,7 @@ impl<'a> TerminalWindow<'a> {
                 ),
             ],
         );
+        xcb_util::icccm::set_wm_name(&conn, window_id, "wterm");
 
         let window_surface =
             TerminalWindow::make_cairo_surface(&conn, screen_num, window_id, width, height)?;