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  1. #include <QApplication>
  2. #include <QPrinter>
  3. #include <QPrintDialog>
  4. #include <QPainter>
  5.  
  6. int main(int argc, char *argv[])
  7. {
  8.     QApplication a(argc, argv);
  9.  
  10.     QPrinter prn(QPrinter::HighResolution);
  11.     prn.setPageMargins(20,20,20,20,QPrinter::Millimeter);
  12.     prn.setPageSize(QPrinter::A4);
  13.     QPrintDialog pd(&prn, 0);
  14.     if(pd.exec()==QPrintDialog::Accepted){
  15.         QPainter p(&prn);
  16.         p.setPen(QPen(Qt::black, 2));
  17.         p.drawRect(prn.pageRect());
  18.         p.end();
  19.     }
  20.  
  21.     return 0;
  22. }
  23.  
Compilation error #stdin compilation error #stdout 0s 0KB
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Standard input is empty
compilation info 
prog.cpp:1:24: fatal error: QApplication: No such file or directory
 #include <QApplication>
                        ^
compilation terminated.
stdout
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Standard output is empty
https://ideone.com/AyxJHM
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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