Category: DESQview/TopView and Quarterdeck programs

INT 15 - DESQview v2.20+ - "GETCRIT" - GET CRITICAL NESTING COUNT

	AX = DE13h
Return: BX = number of calls to BEGINC or ENTERC
	      (see INT 15/AX=101Bh,INT 15/AX=DE1Ch) without matching ENDC
	      (see INT 15/AX=101Ch)
Note:	this API call may be made from within a hardware interrupt handler
SeeAlso: AX=101Bh,AX=101Ch,AX=DE1Bh,AX=DE1Ch