The ArcPad object model consists of more than 50 objects that are exposed while ArcPad is running. As long as ArcPad is running, you can access and manipulate these objects via JScript or VBScript code. Once ArcPad is closed, all of the objects cease to exist until ArcPad is started again.

You can open the ArcPad Object Model diagram from All Programs>ArcGIS>ArcPad10>Developer Help.