Sivaraja 0 Posted August 29, 2003 I am writing a simple printing application which opens the LPT1. I am using CreateFile & WriteFile calls to do this. To find out the printer status I am using DeviceIoControl API with IOCTL_PAR_QUERY_INFORMATION code . The problem I am facing is, When ever I restart the m/c the DeviceIoControl API fails (GetLastError returns 1). Then If I go to devicemanager/ports/Port settings and make some changes and click ok, then the application starts working fine. But If restart the m/c again I have to repeat the same thing. whats the problem ??? Any help would be appriciated. I am using Windows XP With regards, Sivaraja T Share this post Link to post
