Hewlett-Packard believes that this API support will be very beneficial to audio application developers and other vendors who want to minimise the impact of their products on the battery life. This document is addressed to HP Jornada Palm-size and Pocket PC developers who want to take full advantage of the devices' capabilities and supported APIs. Two escape functions have been defined for this purpose. The miniport driver does not set the Information field.
Operation Returns the current power-consumption level of the adapter.
Otherwise, the miniport driver sets the Information field to zero. Also used to do verisioning. It displays a window that allows users to switch the screen off. The LED will blink to show that the unit is still active. HP is providing this program as a convenience to you and therefore doesn't certify the quality, safety or suitability of it.