From 059821a99c6227e3b5ea271dc31c561a7a65d95b Mon Sep 17 00:00:00 2001
From: Vladimir Vukicevic <vladimir@pobox.com>
Date: Tue, 22 Sep 2015 14:02:36 -0400
Subject: win32: implement wakeup_event_loop

---
 src/api/win32/callback.rs |  6 ++++++
 src/api/win32/mod.rs      | 14 +++++++++++---
 2 files changed, 17 insertions(+), 3 deletions(-)

(limited to 'src/api')

diff --git a/src/api/win32/callback.rs b/src/api/win32/callback.rs
index da8e1a6..45de907 100644
--- a/src/api/win32/callback.rs
+++ b/src/api/win32/callback.rs
@@ -281,6 +281,12 @@ pub unsafe extern "system" fn callback(window: winapi::HWND, msg: winapi::UINT,
             0
         },
 
+        x if x == *super::WAKEUP_MSG_ID => {
+            use events::Event::Awakened;
+            send_event(window, Awakened);
+            0
+        },
+
         _ => {
             user32::DefWindowProcW(window, msg, wparam, lparam)
         }
diff --git a/src/api/win32/mod.rs b/src/api/win32/mod.rs
index f580950..a4ca275 100644
--- a/src/api/win32/mod.rs
+++ b/src/api/win32/mod.rs
@@ -38,6 +38,10 @@ mod event;
 mod init;
 mod monitor;
 
+lazy_static! {
+    static ref WAKEUP_MSG_ID: u32 = unsafe { user32::RegisterWindowMessageA("Glutin::EventID".as_ptr() as *const i8) };
+}
+
 /// The Win32 implementation of the main `Window` object.
 pub struct Window {
     /// Main handle for the window.
@@ -75,11 +79,15 @@ impl Drop for WindowWrapper {
 }
 
 #[derive(Clone)]
-pub struct WindowProxy;
+pub struct WindowProxy {
+    hwnd: winapi::HWND,
+}
 
 impl WindowProxy {
     pub fn wakeup_event_loop(&self) {
-        unimplemented!()
+        unsafe {
+            user32::PostMessageA(self.hwnd, *WAKEUP_MSG_ID, 0, 0);
+        }
     }
 }
 
@@ -189,7 +197,7 @@ impl Window {
     }
 
     pub fn create_window_proxy(&self) -> WindowProxy {
-        WindowProxy
+        WindowProxy { hwnd: self.window.0 }
     }
 
     /// See the docs in the crate root file.
-- 
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