WM.SWLIT - Vector $5C

This vector sets a window to a loose item.

Call Parameters		Return Parameters
D1.W	Loose item number	D1.L	Preserved.
D2.L	Item status	D2.L	Preserved.
A4.L	Pointer to working definition	A4.L	Preserved.

Errors

Any IO sub system errors and:

ERR_OR

Out of range.

Any register not shown above is not used and is preserved.
If D2.L is negative, only the window area is set. Otherwise the item will be set to the status requested (available, selected or unavailable) and the "over" state set to 0. The codes for available, selected and unavailable are the bytes $00, $80 and $10.