界面如下:
.h文件:
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include "qcustomplot.h"
#include <QPixmap>
#include <QApplication>
#include <QDesktopWidget>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private slots:
void on_pushButton_clicked();
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H
.cpp文件:
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
InitCurve();
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_pushButton_clicked()
{
QPixmap pixmap = QPixmap::grabWindow(QApplication::desktop()->winId(), this->x(), this->y(), this->width(), this->height());
QDateTime dt = QDateTime::currentDateTime();
QString filename = QString("/media/sdb1/%1.jpg").arg(dt.toString("yyyyMMdd-hhmmss"));
pixmap.save(filename);
}
其中/media/sdb1是U盤路徑
親測編譯到arm板子上運行好用