diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index f522a239c7b00559fbf479c60ca734fca4f2f740..6c3414040abae4644d474c070809f626423eaa3c 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -168,19 +168,30 @@ declare module 'vscode' {
 		export function deleteSecret(service: string, account: string): Thenable<boolean>;
 	}
 
-	export namespace window {
+	/**
+	 * Represents the state of a window.
+	 */
+	export interface WindowState {
 
 		/**
 		 * Whether the current window is focused.
+		 */
+		readonly focused: boolean;
+	}
+
+	export namespace window {
+
+		/**
+		 * Represents the current window's state.
 		 *
 		 * @readonly
 		 */
-		export let isFocused: boolean;
+		export let state: WindowState;
 
 		/**
 		 * An [event](#Event) which fires when the focus state of the current window
 		 * changes. The value of the event represents whether the window is focused.
 		 */
-		export const onDidChangeWindowFocus: Event<boolean>;
+		export const onDidChangeWindowState: Event<WindowState>;
 	}
 }
diff --git a/src/vs/workbench/api/node/extHost.api.impl.ts b/src/vs/workbench/api/node/extHost.api.impl.ts
index b49272536ed4fae98eaf6f2c8127401b353146a0..dc5d9eaf89a76a94bc6076564e450933959552d7 100644
--- a/src/vs/workbench/api/node/extHost.api.impl.ts
+++ b/src/vs/workbench/api/node/extHost.api.impl.ts
@@ -310,11 +310,11 @@ export function createApiFactory(
 			onDidCloseTerminal(listener, thisArg?, disposables?) {
 				return extHostTerminalService.onDidCloseTerminal(listener, thisArg, disposables);
 			},
-			get isFocused() {
-				return extHostWindow.isFocused;
+			get state() {
+				return extHostWindow.state;
 			},
-			onDidChangeWindowFocus: proposedApiFunction(extension, (listener, thisArg?, disposables?) => {
-				return extHostWindow.onDidChangeWindowFocus(listener, thisArg, disposables);
+			onDidChangeWindowState: proposedApiFunction(extension, (listener, thisArg?, disposables?) => {
+				return extHostWindow.onDidChangeWindowState(listener, thisArg, disposables);
 			}),
 			showInformationMessage(message, first, ...rest) {
 				return extHostMessageService.showMessage(Severity.Info, message, first, rest);
diff --git a/src/vs/workbench/api/node/extHostWindow.ts b/src/vs/workbench/api/node/extHostWindow.ts
index 0d0dc69cbf6c4dfe56284ae8cc140d4a12340706..cf8e0be930ab4e6f64573989d08e522067a407ab 100644
--- a/src/vs/workbench/api/node/extHostWindow.ts
+++ b/src/vs/workbench/api/node/extHostWindow.ts
@@ -7,28 +7,33 @@
 import Event, { Emitter } from 'vs/base/common/event';
 import { IThreadService } from 'vs/workbench/services/thread/common/threadService';
 import { ExtHostWindowShape, MainContext, MainThreadWindowShape } from './extHost.protocol';
+import { WindowState } from 'vscode';
 
 export class ExtHostWindow implements ExtHostWindowShape {
 
+	private static InitialState: WindowState = {
+		focused: true
+	};
+
 	private _proxy: MainThreadWindowShape;
 
-	private _onDidChangeWindowFocus = new Emitter<boolean>();
-	readonly onDidChangeWindowFocus: Event<boolean> = this._onDidChangeWindowFocus.event;
+	private _onDidChangeWindowState = new Emitter<WindowState>();
+	readonly onDidChangeWindowState: Event<WindowState> = this._onDidChangeWindowState.event;
 
-	private _isFocused = true;
-	get isFocused(): boolean { return this._isFocused; }
+	private _state = ExtHostWindow.InitialState;
+	get state(): WindowState { return this._state; }
 
 	constructor(threadService: IThreadService) {
 		this._proxy = threadService.get(MainContext.MainThreadWindow);
 		this._proxy.$getWindowVisibility().then(isFocused => this.$onDidChangeWindowFocus(isFocused));
 	}
 
-	$onDidChangeWindowFocus(isFocused: boolean): void {
-		if (isFocused === this._isFocused) {
+	$onDidChangeWindowFocus(focused: boolean): void {
+		if (focused === this._state.focused) {
 			return;
 		}
 
-		this._isFocused = isFocused;
-		this._onDidChangeWindowFocus.fire(isFocused);
+		this._state = { ...this._state, focused };
+		this._onDidChangeWindowState.fire(this._state);
 	}
 }
\ No newline at end of file