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Printer Access

2 replies on 1 page. Most recent reply: Aug 21, 2009 3:47 AM by Meenakshi Parimoo

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Jerry Nelson

Posts: 1
Nickname: azjerry
Registered: Mar, 2006

Printer Access Posted: Mar 11, 2006 10:31 AM
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A Java application I wrote includes a method to print to my printer as follows

/**accepts a string as input and prints to printer
*/
void printThis(String thisString) {
try {
FileWriter out = new FileWriter("LPT1");
String printThis = thisString;
out.write(printThis);
//out.write(0x0D); // CR
out.close();
}
catch (IOException e) {
e.printStackTrace();
}
}

This worked fine in my old Windows 98 machine but refuses to function in my new XP system. I've tried, without success, changing the FileWriter parameter to "USB001" which seems to be the new printer port. I've also tried every other LPT and COM port with no luck. Any suggestions?


Hansraj Mishra

Posts: 1
Nickname: cyberhans
Registered: Apr, 2006

Re: Printer Access Posted: Apr 18, 2006 9:13 AM
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dude, the thing is that your code comes in ring three of security, as per the new norms of windows XP... win NT based systems have disallowed all access to hardware ports, and so you need a "device driver". this can be avoided if you have a proxy listener at ring zero... example ones that are available, and which successfully work as proxies are porttalk and userport. try them!

bbye,
hansraj

Meenakshi Parimoo

Posts: 1
Nickname: mparimoo
Registered: Aug, 2009

Re: Printer Access Posted: Aug 21, 2009 3:47 AM
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Hi

I am using the same program , its working fine when I am giving LPT1 port or Prn: but nw I want to print on some network printer or on a printer on other machine how am i supposed to do that ??
I tried giving IP address and comp and printer name bt its nt w2orking


Meenakshi

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