WM.PANSC - Vector $38
Pan/Scroll standard menu
| Call Parameters | Return Parameters | ||
|---|---|---|---|
| D2.W | Item number | D2 | preserved |
| D3.L | position of "hit" or -1 | D3 | preserved |
| D4.B | pan or scroll event | D4.L | 0 |
| A0 | channel ID | A0 | preserved |
| A3 | pointer to sub window definition | A3 | preserved |
| A4 | pointer to working definition | A4 | preserved |
Errors
D0 and the status register must be set
Notes
- This routine is expected to be called by JMP WM.PANSC(A2) which will be set as the application window control routine. It could also be called by WM.MHIT.
- It is not necessary to set the call parameters since they will have been already set by either WM.RPTR or WM.MHIT.
- This routine deals with panning, scrolling, splitting and joining.
norman