Add typescript declaration file

index.d.ts

@@ -0,0 +1,31 @@
+export interface Bitmap {
+  width: number
+  height: number
+  image: any
+  byteWidth: number
+  bitsPerPixel: number
+  bytesPerPixel: number
+  colorAt(x: number, y: number): string
+}
+
+export interface Screen {
+  capture(x?: number, y?: number, width?: number, height?: number): Bitmap
+}
+
+export function setKeyboardDelay(ms: number) : void
+export function keyTap(key: string, modifier?: string | string[]) : void
+export function keyToggle(key: string, down: string, modifier?: string | string[]) : void
+export function typeString(string: string) : void
+export function typeStringDelayed(string: string, cpm: number) : void
+export function setMouseDelay(delay: number) : void
+export function moveMouse(x: number, y: number) : void
+export function moveMouseSmooth(x: number, y: number) : void
+export function mouseClick(button?: string, double?: boolean) : void
+export function mouseToggle(down?: string, button?: boolean) : void 
+export function dragMouse(x: number, y: number) : void
+export function scrollMouse(magnitude: number, direction: string) : void
+export function getMousePos(): { x: number, y: number }
+export function getPixelColor(x: number, y: number): string
+export function getScreenSize(): { width: number, height: number }
+
+export var screen: Screen

package.json

@@ -3,6 +3,7 @@
   "version": "0.4.4",
   "description": "Node.js Desktop Automation.",
   "main": "index.js",
+  "typings": "index.d.ts",
   "scripts": {
     "test": "node test/all.js",
     "install": "prebuild --install"