fix(wm): listen to settingchange + devicechange

This commit adds listeners on two more events, WM_SETTINGCHANGE and
WM_DEVICECHANGE, in the hope of more reliably catching monitor
attachments and detachments based on info in an SO answer.

fix #267

komorebi/Cargo.toml

@@ -56,7 +56,8 @@ features = [
     "Win32_UI_Input_KeyboardAndMouse",
     "Win32_UI_Shell",
     "Win32_UI_Shell_Common",
-    "Win32_UI_WindowsAndMessaging"
+    "Win32_UI_WindowsAndMessaging",
+    "Win32_System_SystemServices"
 ]
 
 [features]

komorebi/src/windows_callbacks.rs

@@ -18,12 +18,17 @@ use windows::Win32::Graphics::Gdi::HDC;
 use windows::Win32::Graphics::Gdi::HMONITOR;
 use windows::Win32::Graphics::Gdi::PAINTSTRUCT;
 use windows::Win32::Graphics::Gdi::PS_SOLID;
+use windows::Win32::System::SystemServices::DBT_DEVNODES_CHANGED;
 use windows::Win32::UI::Accessibility::HWINEVENTHOOK;
 use windows::Win32::UI::WindowsAndMessaging::DefWindowProcW;
 use windows::Win32::UI::WindowsAndMessaging::PostQuitMessage;
+use windows::Win32::UI::WindowsAndMessaging::SPI_ICONVERTICALSPACING;
+use windows::Win32::UI::WindowsAndMessaging::SPI_SETWORKAREA;
 use windows::Win32::UI::WindowsAndMessaging::WM_DESTROY;
+use windows::Win32::UI::WindowsAndMessaging::WM_DEVICECHANGE;
 use windows::Win32::UI::WindowsAndMessaging::WM_DISPLAYCHANGE;
 use windows::Win32::UI::WindowsAndMessaging::WM_PAINT;
+use windows::Win32::UI::WindowsAndMessaging::WM_SETTINGCHANGE;
 
 use crate::container::Container;
 use crate::monitor::Monitor;
@@ -178,6 +183,34 @@ pub extern "system" fn hidden_window(
 
                 LRESULT(0)
             }
+            // Added based on this https://stackoverflow.com/a/33762334
+            WM_SETTINGCHANGE => {
+                #[allow(clippy::cast_possible_truncation)]
+                if wparam.0 as u32 == SPI_SETWORKAREA.0
+                    || wparam.0 as u32 == SPI_ICONVERTICALSPACING.0
+                {
+                    let event_type = WindowManagerEvent::DisplayChange(Window { hwnd: window.0 });
+                    WINEVENT_CALLBACK_CHANNEL
+                        .lock()
+                        .0
+                        .send(event_type)
+                        .expect("could not send message on WINEVENT_CALLBACK_CHANNEL");
+                }
+                LRESULT(0)
+            }
+            // Added based on this https://stackoverflow.com/a/33762334
+            WM_DEVICECHANGE => {
+                #[allow(clippy::cast_possible_truncation)]
+                if wparam.0 as u32 == DBT_DEVNODES_CHANGED {
+                    let event_type = WindowManagerEvent::DisplayChange(Window { hwnd: window.0 });
+                    WINEVENT_CALLBACK_CHANNEL
+                        .lock()
+                        .0
+                        .send(event_type)
+                        .expect("could not send message on WINEVENT_CALLBACK_CHANNEL");
+                }
+                LRESULT(0)
+            }
             _ => DefWindowProcW(window, message, wparam, lparam),
         }
     }