System and platform specific utilities for the pex library
#copy()#getSender()#getType()#setSender()#stopPropagation()
#addEventListener()#dispatchEvent()#hasEventListener()#removeAllEventListeners()#removeEventListener()
#handleKeyDown(e)#handleKeyPress(e)#handleKeyUp(e)
new KeyboardEvent(type, data).KEY_DOWN.KEY_PRESS.KEY_UP.VK_BACKSPACE.VK_DELETE.VK_DOWN.VK_ENTER.VK_ESC.VK_LEFT.VK_RIGHT.VK_SPACE.VK_TAB.VK_UP
new Mouse()#getPosX()#getPosY()#getPos()#getPrevPosX()#getPrevPosY()#getPrevPos()#getDeltaX()#getDeltaY()#getDelta()#handleMouseDown(e)#handleMouseUp(e)#handleMouseMove(e)#handleMouseScroll(e)
.MOUSE_DOWN.MOUSE_DRAG.MOUSE_MOVE.MOUSE_SCROLL.MOUSE_UP
.load()
.getDevicePixelRatio().getHeight().getNumScreens().getWidth()
#_restart()#_resume()#_stop()#_update()#getDelta()#getDeltaSeconds()#getElapsedFrames()#getElapsedSeconds()#getFPS()
.create()#addEventListener()#getAspectRatio()#getBounds()#getContext()#getHeight()#getKeyboard()#getMouse()#getResources()#getSize()#getTime()#getWidth()
