I was looking through lots of items in Discussion Forum but have not find an answer why
CVI7.0 fopen("LPT1", "wb") is not working same way in Windows XP environment as it does in Windows 95 and CVI 5.1. Does somebody had similar problem with LPT1 control. I want to print formatted by PCL (Printer Control Language) data output on particular HP DescJet6P printer. It was working perfectly on CVI5.1 and Windows 95, but I cannot open for binary write using CVI7.0 on XP. Thanks