## Pen for OS/2 Device Driver Reference

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### Configuration Limitations

A pen device driver is limited to one button and one display device. There can be four locator devices of any mix of locator types. There can be only one display device per system. Pen for OS/2 Device Driver Services will not issue START_LOGICAL_DEVICE to logical devices that would cause these limits to be exceeded.

There can be one pen device driver in the system.