qt5base-lts/examples/widgets/desktop/screenshot/screenshot.h

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#ifndef SCREENSHOT_H
#define SCREENSHOT_H

#include <QPixmap>
#include <QWidget>

QT_BEGIN_NAMESPACE
class QCheckBox;
class QGridLayout;
class QGroupBox;
class QHBoxLayout;
class QLabel;
class QPushButton;
class QSpinBox;
class QVBoxLayout;
QT_END_NAMESPACE

//! [0]
class Screenshot : public QWidget
{
    Q_OBJECT

public:
    Screenshot();

protected:
    void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;

private slots:
    void newScreenshot();
    void saveScreenshot();
    void shootScreen();
    void updateCheckBox();

private:
    void createOptionsGroupBox();
    void createButtonsLayout();
    QPushButton *createButton(const QString &text, QWidget *receiver, const char *member);
    void updateScreenshotLabel();

    QPixmap originalPixmap;

    QLabel *screenshotLabel;
    QGroupBox *optionsGroupBox;
    QSpinBox *delaySpinBox;
    QLabel *delaySpinBoxLabel;
    QCheckBox *hideThisWindowCheckBox;
    QPushButton *newScreenshotButton;
    QPushButton *saveScreenshotButton;
    QPushButton *quitScreenshotButton;

    QVBoxLayout *mainLayout;
    QGridLayout *optionsGroupBoxLayout;
    QHBoxLayout *buttonsLayout;
};
//! [0]

#endif // SCREENSHOT_H