sample update

Author: jstzwj

Cargo.toml

@@ -11,6 +11,8 @@ name = "imgui_rust"
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
+
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 libc = "0.2.9"
 imgui-sys = "0.0.21"
 

examples/helloworld/Cargo.lock

@@ -6,6 +6,9 @@ edition = "2018"
 
 [dependencies]
 imgui-rust = { path = "../../", features=["stdweb"]}
-stdweb = "0.4.10"
+glfw = "0.25.0"
+gl = "0.11.0"
+serde = "1.0.0"
+serde_derive = "1.0.0"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]

examples/helloworld/Cargo.toml

@@ -1,11 +1,49 @@
-#[macro_use]
-extern crate stdweb;
+extern crate gl;
+// include the OpenGL type aliases
+use gl::types::*;
 
-extern crate imgui_rust;
+extern crate glfw;
+
+use glfw::{Action, Context, Key};
 
 fn main() {
-    stdweb::initialize();
+   let mut glfw = glfw::init(glfw::FAIL_ON_ERRORS).unwrap();
+
+    // Create a windowed mode window and its OpenGL context
+    let (mut window, events) = glfw.create_window(300, 300, "Hello this is window", glfw::WindowMode::Windowed)
+        .expect("Failed to create GLFW window.");
+
+    // Make the window's context current
+    window.make_current();
+
+    gl::load_with(|s| glfw.get_proc_address_raw(s));
+
+    // loading a specific function pointer
+    gl::Viewport::load_with(|s| glfw.get_proc_address_raw(s));
+
+    window.set_key_polling(true);
+
+    // Loop until the user closes the window
+    while !window.should_close() {
+        // render
+        unsafe{
+            gl::ClearColor(1.0,0.0,0.0,0.0);
+            gl::Clear(gl::COLOR_BUFFER_BIT);
+        }
+
+        // Swap front and back buffers
+        window.swap_buffers();
 
-    let im = imgui_rust::Imgui::new();
-    im.IMGUI_CHECKVERSION();
-}
+        // Poll for and process events
+        glfw.poll_events();
+        for (_, event) in glfw::flush_messages(&events) {
+            println!("{:?}", event);
+            match event {
+                glfw::WindowEvent::Key(Key::Escape, _, Action::Press, _) => {
+                    window.set_should_close(true)
+                },
+                _ => {},
+            }
+        }
+    }
+}