我的QT第一个程序MyQT

MyQT.pro添加库

LIBS += -lwiringPi

mainwindow.h

#ifndef MAINWINDOW_H

#define MAINWINDOW_H

#include <QMainWindow>

#include <wiringPi.h>

namespace Ui {

class MainWindow;

}

class MainWindow : public QMainWindow

{

    Q_OBJECT

public:

    explicit MainWindow(QWidget *parent = 0);

    ~MainWindow();

private slots:

    void on_pushButton_clicked();

    void on_pushButton_2_clicked();

    void on_pushButton_3_clicked();

    void on_pushButton_4_clicked();

private:

    int LEDPort;

    Ui::MainWindow *ui;

};

#endif // MAINWINDOW_H

mainwindow.cpp

include "mainwindow.h"

#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :

    QMainWindow(parent),

    ui(new Ui::MainWindow)

{

    LEDPort=5;

    ui->setupUi(this);

    wiringPiSetup();

    pinMode(LEDPort,OUTPUT);

}

MainWindow::~MainWindow()

{

    delete ui;

}

void MainWindow::on_pushButton_clicked()

{

    this->setWindowFlags (Qt::Window);

    this->showFullScreen ();

}

void MainWindow::on_pushButton_2_clicked()

{

    this->setWindowFlags (Qt::SubWindow);

    this->showNormal ();

}

void MainWindow::on_pushButton_3_clicked()

{

    digitalWrite(LEDPort,HIGH);

}

void MainWindow::on_pushButton_4_clicked()

{

    digitalWrite(LEDPort,LOW);

}