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Wimp_SetWatchdogState
Programmer's Reference Manuals
» Part 7 - The Desktop
» The Window Manager
» SWI Calls
» Wimp_SetWatchdogState
Wimp_SetWatchdogState
(SWI &400FA)
| Entry | |
|---|---|
| R0 | 0 to turn off, or |
| 1 to turn on | |
| R1 | Password (must be same for off as for on) |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Preserved |
Use
The purpose of this call is to implement a screenlocking mechanism, as found in screensavers and the alike.
Notes
It is advisable to implement a password when turning on the watchdog. The password must then be supplied before the watchdog can be turn off. This will also ensure that other tasks cannot over-ride a screenlock.