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RectangleCopy Filter Code
Programmer's Reference Manuals
» Part 7 - The Desktop
» The Filter Manager
» SWI Calls
» Filter_RegisterCopyFilter
» RectangleCopy Filter Code
RectangleCopy Filter Code
| Entry | |
|---|---|
| R2 | Source minimum x (inclusive) |
| R3 | Source minimum y (inclusive) |
| R4 | Source maximum x (exclusive) |
| R5 | Source maximum y (exclusive) |
| R6 | Destination minimum x (inclusive) |
| R7 | Destination minimum y (inclusive) |
| R8 | Destination maximum x (exclusive) |
| R9 | Destination maximum y (exclusive) |
| R10 | Window handle – 11 |
| R12 | Value of R2 when filter registered |
1 Wimp 3.90 and above only
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Preserved |
| R3 – R10 | Preserved |
Notes
This code is called when the Wimp is about to copy a rectangle across the screen. The current and previous graphics cursors describe the area to be copied, but the operation has not yet been performed.