INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - SEND MESSAGE - "ADDTO" - WRITE CHARS AND ATTRIBS TO WINDOW
	AH = 12h
	BH = 0Ah
	BL = window to write to
	    00h window handle is DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address. on top of stack
	    01h current task's default window
	    0Ch (DV 2.26+) default window of task owning handle on top of stack
	    0Dh (DV 2.26+) default window of parent of current task
	STACK:	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address. count of attributes
		DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address. address of attribute string
		DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address. count of characters
		DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address. address of character string
Return: STACK popped
Notes:	if one string is longer than the other, the shorter one will be reused
	  until the longer one is exhausted
	the cursor is left just after the last character written
SeeAlso: AH=12h/BH=0Bh"WINDOW"
                                                                                

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - SEND MESSAGE - "ADDTO" - SEND MAILBOX MESSAGE/STAT BY VALUE
	AH = 12h
	BH = 0Ah
	BL = mailbox to write to
	    00h handle is DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address. on top of stack
	    02h default mailbox of task whose handle is on top of stack
	    03h current task's default mailbox
	STACK:	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	status (low byte)
		DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	length of message
		DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	address of message
Return: STACK popped
Notes:	the message is copied into either system or common memory
	insufficient memory normally causes the process to be aborted; under
	  DESQview 2.2+, failed writes may return CF set instead (see AX=DE15h)
SeeAlso: AH=12h/BH=0Bh"MAILBOX"
                                                                                

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - SEND MESSAGE - "ADDTO" - SET OBJECT BITS
	AH = 12h
	BH = 0Ah
	BL = object
	    00h handle is DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address. on top of stack
		timer: start timer for specified interval
		pointer: set control flags (see #00451)
		keyboard: set control flags (see #00450)
	    04h set control flags on KEYBOARD object (handle on top of stack)
	    05h set control flags on task's default KEYBOARD object
	STACK: (if timer)   DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address. duration in 1/100 seconds
	       (otherwise)  DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address. bits to set
Return: STACK popped
SeeAlso: AH=12h/BH=0Bh"OBJECT"


Bitfields for DESQview keyboard object bits:
Bit(s)	Description	(Table 00450)
 15	reserved, can't be set
 14	unused
 13	reserved, can't be set
 12-6	unused
 5	(DV 2.2+) exclusive input
 4	filter all keys (used with handler established by SETESC)
	if 0, only keys that would normally be displayed are filtered
 3	program continues executing while input in progress
 2	insert mode active for field mode
 1	hardware cursor displayed when task is hardware cursor owner
	must be set if keyboard in field mode and field table includes input
	  fields
 0	keyboard is in field mode rather than keystroke mode


Bitfields for DESQview pointer object bits:
Bit(s)	Description	(Table 00451)
 15	reserved, can't be set
 14-8	unused
 7	mouse pointer is hidden while in window
 6	get messages even if window not topmost
 5	get messages even if window not foreground
 4	multiple clicks separated by less than 1/3 second are counted and
	  returned in a single message
 3	pointer position is relative to screen origin, not window origin
 2	send message on button release as well as button press
 1	(DV 2.23+) send message with row=FFFFh and col=FFFFh whenever the
	  pointer leaves the window
 0	send message only on button activity, not movement
	DV-specific, and INT 15/AX=DE0Fh must have been called first