BIOS / Int / Int 15 / 12/0D


           INT 15 - TopView - SEND MESSAGE - "CLOSE" - CLOSE OBJECT

Input			Output
AX	12h			AX
BX	0Dh	Object		BX
CX				CX
DX				DX
ES:DI				ES:DI

Object:

        00h handle is DWORD on top of stack
            timer: close
            keyboard: detach from window
            pointer: stop taking input
            panel: close
        02h close given task's mailbox (task's handle on top of stack)
        03h close task's default mailbox
        04h close KEYBOARD object (handle on top of stack)
        05h close task's default KEYBOARD
        06h close given task's OBJECTQ (task's handle on top of stack)
        07h close current task's OBJECTQ