Add a Touch Event to a project screen in order to process touch input on the screen in general, rather than on a specific object in the screen.

1. Do one of the following:
   • On the Graphics tab of the ribbon, in the Screen group, click Script; or
   • Right-click anywhere in the screen worksheet, and then click Screen Script on the shortcut menu.

   The screen’s associated script worksheet is opened for editing.

2. Right-click anywhere in the script worksheet, and then point to Add Touch Event on the shortcut menu. A sub-menu of the available Touch Events is displayed.
3. On the sub-menu, click the Touch Event that you want to add.
   

   Option	Description
   Sub Screen_OnTouch	Process the raw data from the touch input. The sub-routine is continuously executed while the user touches the project screen.
   Sub Screen_OnTouchStart	Perform an action once, when the user starts touching the project screen.
   Sub Screen_OnTouchDelta	Perform an action each time the user moves his or her fingers on the project screen.
   Sub Screen_OnTouchCompleted	Perform an action once, when the user stops touching the project screen.

   The Touch Event is inserted as a VBScript sub-routine in the Screen Script worksheet.

4. Click in the worksheet and type your VBScript code.