printing from an applet

I have been developing an applet for a simple database acess
onthe net in JDK1.1.6 using Visual age java.Now the client has a new request . To print from the applet .From the questions and answers here in EE it appears as though that could only be done
using JAVA 2 . Is that true? Is there any way to do it in JDK1.1.6. Can digital signatures be used in JDK1.1 . Is there a
way I could add the digital signature feature to my applet
without actually changing the code to JDK1.2.(probably by pointing to the JDK1.2 Vm and including more packages from
jdk1.2
mantishAsked:
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vladi21Connect With a Mentor Commented:
1) Your must sign applet in browser specific way

Code signing resources:
Creating Signed, Persistent Java Applets http://www.ddj.com/articles/1999/9902/9902h/9902h.htm
http://www.javasoft.com/products/jdk/1.1/docs/guide/security/index.html 
http://java.sun.com/security/signExample/index.html 
http://www.verisign.com/library/guide/developer/signing/index.html 
http://www.suitable.com/Doc_CodeSigning.shtml 
http://www.securingjava.com/appdx-c/ 
http://www.fastlane.net/~tlandry/javafaq.txt

MS:
http://www.thawte.com/support/developer/ms.html 
http://www.developer.com/journal/techworkshop/curr.html 
http://www.verisign.com/library/guide/developer/authenticode/index.html 

NN:
3.4: Can I print from my Applet?
If you have the JDK 1.1 patch installed, you can print if you have enabled the UniversalPrintJobAccess privilege.
http://developer.netscape.com/docs/manuals/signedobj/targets/contents.htm 
http://developer.netscape.com/support/faqs/objfaq.html 
http://developer.netscape.com/docs/manuals/signedobj/javadoc/Package-netscape_security.html 


2) Print
http://www.ibm.com/java/education/printing/index.html
http://www.apl.jhu.edu/~hall/java/Swing-Tutorial/Swing-Tutorial-Printing.html
http://manning.spindoczine.com/sbe/files/uts2/Chapter22html/Chapter22.htm
http://developer.java.sun.com/developer/onlineTraining/Programming/JDCBook/render.html
http://developer.java.sun.com/developer/onlineTraining/Programming/JDCBook/advprint.html
http://www.developer.com/news/techworkshop/012298_javaprint.html
http://java.sun.com/printing/jdk1.2/printing-chapter-v2.txt


http://www.inquiry.com/techtips/java_pro/answer.asp?pro=java_pro&docID=1869 

  2. (Sect. 8) How do I print from a Java program?

     [*] Use the Toolkit.getPrintJob() method

     Component c = this.getParent();
     while (c!=null && !(c instanceof Frame))
         c=c.getParent();

     PrintJob pj = getToolkit().getPrintJob((Frame) c, "test", null);
     Graphics pg = pj.getGraphics();
     printAll(pg);
     pg.dispose();
     pj.end();


     This feature was introduced with JDK 1.1. A common place to put this is
     in the code that handles a button press. Printing from an untrusted
     applet is subject to a check from the SecurityManager.

     The JDK 1.1 printing API is more a screen hardcopy facility than a full
     blown publishing and illustration hardcopy API. JDK 1.2 offers a more
     full-featured printing API.
     http://java.sun.com/printing/

     If you simply want to print text, then write it to a file and print the
     file. Or open a filename that corresponds to the printer. On Windows,
     that is "LPT1" and the code looks like:

     try {
         FileOutputStream fos = new FileOutputStream("LPT1");
         PrintStream ps = new PrintStream(fos);
                 ps.print("Your string goes here");
                 ps.print("\f");
                 ps.close();
     } catch (Exception e) {
         System.out.println("Exception occurred: " + e);
     }


     The final formfeed is needed by windows to start the printjob.

  3. (Sect. 8) What are the properties that can be used in a PrintJob? The
     properties are
        o awt.print.destination - can be "printer" or "file"
        o awt.print.printer - printer name
        o awt.print.fileName - name of the file to print
        o awt.print.numCopies - obvious
        o awt.print.options - options to pass to the print command
        o awt.print.orientation - can be "portrait" or "landscape"
        o awt.print.paperSize - can be "letter","legal","executive" or "a4"
     The defaults are destination=printer, orientation=portrait,
     paperSize=letter, and numCopies=1.

     You can search for info like this by joining the Java Developer
     Connection (it's free) at http://java.sun.com/jdc.

     and doing a search for "PrintJob".

---
http://www.developer.com/news/techworkshop/012298_javaprint.html
Without going into too much detail, Netscape Communicator enables signed applets to request permission to access various system resources. It is left up to the user to grant or deny access.

An applet requests access to a system's printing resources by enabling the UniversalPrintJobAccess privilege. Once the privilege has been granted, the applet can proceed exactly as outlined above. To enable the print job privilege, you use the following code:

import netscape.security.PrivilegeManager;
import netscape.security.ForbiddenTargetException;
..
..
try {


PrivilegeManager.enablePrivilege ("UniversalPrintJobAccess");
// proceed with printing as normal
PrivilegeManager.disablePrivilege ("UniversalPrintJobAccess");


} catch (ForbiddenTargetException e) {

// user denied applet permission to access resource

}
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sgomsCommented:
0
 
vladi21Commented:
also look

1) Code signing resources:
Creating Signed, Persistent Java Applets http://www.ddj.com/articles/1999/9902/9902h/9902h.htm
http://www.javasoft.com/products/jdk/1.1/docs/guide/security/index.html 
http://java.sun.com/security/signExample/index.html 
http://www.verisign.com/library/guide/developer/signing/index.html 
http://www.suitable.com/Doc_CodeSigning.shtml 
http://www.securingjava.com/appdx-c/ 
http://www.fastlane.net/~tlandry/javafaq.txt

MS:
http://www.thawte.com/support/developer/ms.html 
http://www.developer.com/journal/techworkshop/curr.html 
http://www.verisign.com/library/guide/developer/authenticode/index.html 

NN:
3.4: Can I print from my Applet?
If you have the JDK 1.1 patch installed, you can print if you have enabled the UniversalPrintJobAccess privilege.
http://developer.netscape.com/docs/manuals/signedobj/targets/contents.htm 
http://developer.netscape.com/support/faqs/objfaq.html 
http://developer.netscape.com/docs/manuals/signedobj/javadoc/Package-netscape_security.html 


2) Print
http://www.ibm.com/java/education/printing/index.html
http://www.apl.jhu.edu/~hall/java/Swing-Tutorial/Swing-Tutorial-Printing.html
http://manning.spindoczine.com/sbe/files/uts2/Chapter22html/Chapter22.htm
http://developer.java.sun.com/developer/onlineTraining/Programming/JDCBook/render.html
http://developer.java.sun.com/developer/onlineTraining/Programming/JDCBook/advprint.html
http://www.developer.com/news/techworkshop/012298_javaprint.html


http://www.inquiry.com/techtips/java_pro/answer.asp?pro=java_pro&docID=1869 

  2. (Sect. 8) How do I print from a Java program?

     [*] Use the Toolkit.getPrintJob() method

     Component c = this.getParent();
     while (c!=null && !(c instanceof Frame))
         c=c.getParent();

     PrintJob pj = getToolkit().getPrintJob((Frame) c, "test", null);
     Graphics pg = pj.getGraphics();
     printAll(pg);
     pg.dispose();
     pj.end();


     This feature was introduced with JDK 1.1. A common place to put this is
     in the code that handles a button press. Printing from an untrusted
     applet is subject to a check from the SecurityManager.

     The JDK 1.1 printing API is more a screen hardcopy facility than a full
     blown publishing and illustration hardcopy API. JDK 1.2 offers a more
     full-featured printing API.
     http://java.sun.com/printing/

     If you simply want to print text, then write it to a file and print the
     file. Or open a filename that corresponds to the printer. On Windows,
     that is "LPT1" and the code looks like:

     try {
         FileOutputStream fos = new FileOutputStream("LPT1");
         PrintStream ps = new PrintStream(fos);
                 ps.print("Your string goes here");
                 ps.print("\f");
                 ps.close();
     } catch (Exception e) {
         System.out.println("Exception occurred: " + e);
     }


     The final formfeed is needed by windows to start the printjob.

  3. (Sect. 8) What are the properties that can be used in a PrintJob? The
     properties are
        o awt.print.destination - can be "printer" or "file"
        o awt.print.printer - printer name
        o awt.print.fileName - name of the file to print
        o awt.print.numCopies - obvious
        o awt.print.options - options to pass to the print command
        o awt.print.orientation - can be "portrait" or "landscape"
        o awt.print.paperSize - can be "letter","legal","executive" or "a4"
     The defaults are destination=printer, orientation=portrait,
     paperSize=letter, and numCopies=1.

     You can search for info like this by joining the Java Developer
     Connection (it's free) at http://java.sun.com/jdc.

     and doing a search for "PrintJob".

---
http://www.developer.com/news/techworkshop/012298_javaprint.html
Without going into too much detail, Netscape Communicator enables signed applets to request permission to access various system resources. It is left up to the user to grant or deny access.

An applet requests access to a system's printing resources by enabling the UniversalPrintJobAccess privilege. Once the privilege has been granted, the applet can proceed exactly as outlined above. To enable the print job privilege, you use the following code:

import netscape.security.PrivilegeManager;
import netscape.security.ForbiddenTargetException;
..
..
try {


PrivilegeManager.enablePrivilege ("UniversalPrintJobAccess");
// proceed with printing as normal
PrivilegeManager.disablePrivilege ("UniversalPrintJobAccess");


} catch (ForbiddenTargetException e) {

// user denied applet permission to access resource

}
0
 
Ravindra76Commented:
Wow!!!!!!!!!!. The same question is coming so many times and answer too from vladi21 URL repository
0
 
vladi21Commented:
mantish  - can u sumbit answer?
0
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