Identifies digitizers connected to the system.
| Type: | Integer | 
| Saved in: | Registry | 
| Initial value: | 0 | 
| Value | Description | 
|---|---|
| 1 | Integrated touch | 
| 2 | External touch | 
| 4 | Integrated pen | 
| 8 | External pen | 
| 16 | Multiple input | 
| 128 | Input devices are ready |