Int 15 Fn DE13 - Desqview V2.20+ - "getcrit" - Get Critical Nesting Coun [Q] AX = DE13h Return: BX = number of calls to BEGINC or ENTERC (see INT 15/AX=101Bh,DE1Ch) without matching ENDC (see INT 15/AX=101Ch) Note: this API call may be made from within a hardware interrupt handler See Also: AX=101Bh,AX=101Ch,AX=DE1Bh,AX=DE1Ch