Filter_RegisterCopyFilter (changes)
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FilterManager
» SWI Calls?SWI Calls
» Filter_RegisterCopyFilter
Filter_RegisterCopyFilter
(SWI &42646)
| Entry | |
|---|---|
| R0 | Pointer to zero terminated filter name |
| R1 | Address of RectangleCopy Filter Code |
| R2 | Value to be passed to R12 |
| Exit |
|---|
| All registers preserved |
Use
The purpose of this call is to add a new Wimp_BlockCopy filter to the list of pre-filters.
Notes
The address pointed to by R1 will be called whenever a task calls Wimp_BlockCopy with R12 equal to the value of R2 when this SWI is called.
See also
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