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运行截图如下:
源码如下:
widget.h
#ifndef WIDGET_H
#define WIDGET_H
#include <QWidget>
namespace Ui {
class Widget;
}
class Widget : public QWidget
{
Q_OBJECT
public:
explicit Widget(QWidget *parent = 0);
~Widget();
private slots:
void on_pushButton_clicked();
private:
Ui::Widget *ui;
};
#endif // WIDGET_H
main.cpp
#include "widget.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
Widget w;
w.show();
return a.exec();
}
widget.cpp
#include "widget.h"
#include "ui_widget.h"
#include <QWindow>
#include <QDebug>
#include <QPixmap>
#include <QScreen>
#include <QLabel>
Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
ui->setupUi(this);
}
Widget::~Widget()
{
delete ui;
}
void Widget::on_pushButton_clicked()
{
QWindow *window=windowHandle();
QScreen *screen=window->screen();
QPixmap pixmap=screen->grabWindow(0);
QLabel *label=new QLabel;
label->setPixmap(pixmap);
label->show();
pixmap.save("C:\\Users\\Administrator\\Desktop\\1.png");
}
被截图的文件: