A fast and easily customised operating system
for ARM devices
OS_Word 21
OS SWI Calls
» OS_Word
» OS_Word 21
OS_Word 21
(SWI &07)
The action performed depends on the reason code value at offset +0 in R1.
Reason Codes
| # | Hex # | Action |
|---|---|---|
| 0 | &00 | Define pointer shape |
| 1 | &01 | Define the mouse co-ordinate bounding box |
| 2 | &02 | Set mouse multipliers |
| 3 | &03 | Set mouse position |
| 4 | &04 | Read unbuffered mouse position |
| 5 | &05 | Set pointer position |
| 6 | &06 | Read pointer position |
| 7 | &07 | Read the mouse bounding box (RISCOS Ltd Select only, not implemented on RISC OS 5) |
Use
The purpose of this call is to provide a number of operations relating to the mouse and pointer.
See also
Social
Follow us on
and
and
ROOL Store
Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.