A fast and easily customised operating system
for ARM devices
Drag Location Flags
Programmer's Reference Manuals
» Part 7 - The Desktop
» DragASprite
» SWI Calls
» DragASprite_Start
» Drag Location Flags
Drag Location Flags
| Bits | Meaning |
|---|---|
| 0-1 | Horizontal location of sprite in box |
| 00 Left | |
| 01 Centre | |
| 10 Right | |
| 11 undefined | |
| 2-3 | Vertical location of sprite in box |
| 00 Bottom | |
| 01 Centre | |
| 10 Top | |
| 11 undefined | |
| 4-5 | Drag bounding box is |
| 00 Whole screen | |
| 01 Display area of window that pointer is over | |
| 10 User specified | |
| 11 undefined | |
| 6 | Bounding box applies to |
| 0 The box | |
| 1 The pointer | |
| 7 | Use drop shadow |
| 8 | Do not dither sprite1 |
| 9 | Centre sprite around pointer2 |
| 10-31 | Reserved for future use, should be 0 |
1 Available from RISC OS 3.5 onwards
2 Available from RISC OS 4.00 onwards