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PointerV 3
Programmer's Reference Manuals
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» PointerV 3
Pointer Vector (38)
| Entry | |
|---|---|
| R0 | 3 (reason code) |
| R1 | Pointer device number |
| R2 | Change in X position |
| R3 | Change in Y position |
Use
This vector is called by the pointer driver to notify the kernel when a pointer movement is detected.
Notes
When called the kernel will stop polling and rely on the driver notifying further movements through this interface. Positions are signed 32-bit values.
This particular reason code is only available from RISC OS 5 onwards.