Showing changes from revision #2 to #3:
Added | Removed | Changed
Entry | |
---|---|
R0 | Window handle, or |
-1 for absolute screen co-ordinates | |
-2 for icon bar | |
R1 | Minimum x of area |
R2 | Minimum y of area |
R3 | Maximum x of area |
R4 | Maximum y of area |
Exit | |
---|---|
R0 | Corrupt |
This syntax form marks an area of a screen as invalid, so it can be redrawn later.
Co-ordinates are relative to the window’s work area, unless R0 = -1 on entry, in which case absolute screen co-ordinates should be provided.
This call should not be used for animation, or other temporary changes. Under these circumstances Wimp_UpdateWindow should be used instead.
Under the nested wimp, windows belonging to other applications can be marked as invalid.