Documentation: Wimp_DragBox
Programmer’s Reference Manuals
» Part 7 – The Desktop
» The Window Manager
» SWI Calls
» Wimp_DragBox
Wimp_DragBox
(SWI &400D0)
| Entry | |
|---|---|
| R1 | Pointer to Drag Block, or |
| -1 to cancel drag | |
| R2 | “TASK” invokes use of R3 |
| R3 | Drag Box Flags |
| Exit | |
|---|---|
| R0 | Corrupt |
Use
The purpose of this call is to initiate a drag operation.
Notes
A drag can span several calls to Wimp_Poll, so applications must remember what is being dragged and why.
The termination of a non system drag is reported by the User_Drag_Box event code.
