Hi,

I've created a GUI application and I'd like to convert it into a CONSOLE application. I took out some lines (see //) and addes some (see //ADDED). However, the simple test program failed to compile with this error message: "main.cpp:29: error: ‘myFunction’ was not declared in this scope". Below are my main.cpp, functions.cpp and tom.h

main.cpp
Qt Code: 
  1. #include <QCoreApplication>//ADD
  2. #include <QApplication>
  3. #include <QtGui>
  4. #include "tom.h"
  5. #include "functions.cpp"
  6.  
  7. MyWidget::MyWidget(QWidget* parent): QWidget(parent)
  8. {
  9.     //mainLayout = new QVBoxLayout;
  10.     //buttonLayout = new QHBoxLayout; 
  11.     //runButton = new QPushButton("run");
  12.     //connect(runButton, SIGNAL(clicked()), this, SLOT(myFunction()));
  13.     //mainLayout->addLayout(buttonLayout);
  14.     //buttonLayout->addWidget(runButton);
  15.     //setLayout(mainLayout);  
  16. }
  17.  
  18. ////////////////////////////////////////////////////////////
  19. int main(int argc, char *argv[])
  20. {
  21.     //QApplication application(argc, argv);
  22.     QCoreApplication application(argc, argv);//ADD
  23.     myFunction();//ADD
  24.  
  25.     //Widget window;
  26.     //window.show(); 
  27.     //return application.exec();
  28.  
  29.     return 0;//ADD
  30. }
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functions.cpp
Qt Code: 
  1. #include <iostream>
  2. #include <cstring>
  3. #include <cstdlib>
  4.  
  5. using namespace std;
  6.  
  7. /////////////////////////////////////////////////////
  8. void MyWidget::myFunction()
  9. {
  10. FILE *output; if((output=fopen("output.txt","w")) == 0) {exit(1);}
  11. fprintf(output,"hello\n");
  12. fclose(output);
  13. }
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tom.h
Qt Code: 
  1. #ifndef TOM_H
  2. #define TOM_H
  3. #include <QtGui>
  4.  
  5. class MyWidget : public QWidget
  6. {
  7.     Q_OBJECT
  8.     public:
  9.         MyWidget (QWidget* parent = 0);
  10.         void myFunction();//ADD
  11.  
  12.     public slots:
  13.        //void myFunction();
  14.  
  15.            signals:
  16.  
  17.     protected:
  18.  
  19.     private:
  20.         //QVBoxLayout* mainLayout;  
  21.         //QHBoxLayout* buttonLayout;
  22.         //QPushButton* runButton;
  23. };
  24.  
  25. #endif
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I'd be most thankful for any help!