INT 16 - PC Tools v5.1+ DESKTOP API - COPY DATA TO CLIPBOARD
AX = FFC9h
DS:SI -> characters to store in clipboard
CX = size in bytes
Return: CF set on error
Notes:  available only when popped up
while copying, bytes of 00h and 0Ah are skipped


16FFC9 - PC Tools v5.1+ DESKTOP API - COPY DATA TO CLIPBOARD