)
Call VSGLX16.386 entry point with:
	DX = function number
	    0000h get azt16 version
		Return: CF clear
			AX = version returned by "azt16" device
	    0001h get ???
		AX = ??? (always fails if nonzero)
		ES:BX -> buffer for ???
			first DWORD of buffer must be set to length of buffer
			  (in bytes, 1 <= size <= 92) before calling
		Return: CF clear if successful
			    AX = 0001h
			CF set on error (invalid pointer, bad buffer size)
			    AX = 0000h
	    0002h
		AX = ???
		BX = ???
		Return: CF clear if successful
			    AX = ???
			CF set on error
			    AX = error code
	    0003h
		AX = ???
		BX = ???
		Return: CF clear if successful
			CF set on error
	    0004h set ???
		ES:DI -> buffer containing ???
		BX = ???
		CX = number of bytes to copy
		Return: CF clear if successful
			    AX = 0001h
			CF set on error
			    AX = 0000h
	    0005h get ???
		ES:DI -> buffer for ???
		BX = ???
		CX = number of bytes to copy
		Return: CF clear if successful
			    AX = 0001h
			CF set on error
			    AX = 0000h
	    else
		Return: CF set
SeeAlso: #02686