How To Extract A File

**wysota** · 30th November 2006, 21:55

$ ldd `which file`
linux-gate.so.1 => (0xbfffe000)
libmagic.so.1 => /usr/lib/libmagic.so.1 (0xb7f13000)
libz.so.1 => /lib/libz.so.1 (0xb7f00000)
libc.so.6 => /lib/i686/libc.so.6 (0xb7dd3000)
/lib/ld-linux.so.2 (0xb7f3d000)

I think this says it all

**deekayt** · 5th December 2006, 18:01

I need to use the code in windows based QT ( C ++)
I am not sure how to use your code in that.Is it forlinux .
Where will I write in the code, Presently I open the file with following code

Qt Code:

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void steg::showdatafile()/*** THIS MODULE SHOWS THE DATA FILE  *****/ 
{  
 	if(QFile::exists(ui.datalineEdit->text()))  
	   {	
	     QProcess p;    
	     QStringList s;  
	     s << "url.dll,FileProtocolHandler" << ui.datalineEdit->text() ; 
	     p.startDetached(QString("rundll32.exe") , s );
	   }
  	else
		QMessageBox::warning(this, tr("FILE ERROR"),
            		tr("<p><b> ERROR IN DISPLAYING DATA FILE.</b>"
              		   "</p><p><b>CHOOSE THE DATA FILE AND MAKE SURE THE FILE EXISTS OR CHOOSE SEPARATE FILE</b>"));
 
 }

void steg::showdatafile()/*** THIS MODULE SHOWS THE DATA FILE  *****/ 
{  
 	if(QFile::exists(ui.datalineEdit->text()))  
	   {	
	     QProcess p;    
	     QStringList s;  
	     s << "url.dll,FileProtocolHandler" << ui.datalineEdit->text() ; 
	     p.startDetached(QString("rundll32.exe") , s );
	   }
  	else
		QMessageBox::warning(this, tr("FILE ERROR"),
            		tr("<p><b> ERROR IN DISPLAYING DATA FILE.</b>"
              		   "</p><p><b>CHOOSE THE DATA FILE AND MAKE SURE THE FILE EXISTS OR CHOOSE SEPARATE FILE</b>"));
	    
 }

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that is ----I am using FileProtocolHandler.But it is going to treat my file as text file where as my requirement is as told above.

**wysota** · 5th December 2006, 18:27

Well... Windows is the operating system I was talking about in one of my previous posts in this thread. If I were you, I'd check if libmagic compiles on your system. It's probably a GNU utility, so it will probably work.

See here: http://gnuwin32.sourceforge.net/packages/file.htm