QT Color Dialog Demo

In this lesson we will learn how to use QColorDialog in qt.

The QColorDialog class provides a dialog widget for specifying colors.

File->New File or Project…

Applications->Qt Gui Application->Choose…

We keep the class as MainWindow as given by default.

Now write the code shown below in main.cpp

#include <QApplication>
#include <QDebug>
#include <QColorDialog>

class QColorDialogTester : public QWidget
{
public:
  void onColor()
  {
    QColor color = QColorDialog::getColor(Qt::yellow, this );
    if( color.isValid() )
    {
      qDebug() << "Color Choosen : " << color.name();
    }
  }

};

int main( int argc, char **argv )
{
  QApplication app( argc, argv );
  QColorDialogTester color_test;
  color_test.onColor();
  return 0;
}

 

Now run the code and see the output.

 

On terminal you will see the chosen color code

Color Choosen :  "#ffff00"