Qt显示pdf之五在Qt中使用

来源：互联网发布：什么是数据时代编辑：程序博客网时间：2024/05/22 06:09

引入前面章节封装的lib，dll 和lib

void MainWindow::slotOpenPdf()

    QString pdf = QApplication::applicationDirPath() + "\\1.pdf";

    PDFIumReader_Loadpdf(pdf.toStdString().c_str());

    int counts = PDFIumReader_GetPageCount(pdf.toStdString().c_str());

    ui->lineEdit->setText(0);

    float width, height = 0;

    char *buf = PDFIumReader_GetPage(pdf.toStdString().c_str(), 0, width, height,false);

    QImage image((uchar*)buf, width, height, QImage::Format_RGBA8888);

    ui->label->setPixmap(QPixmap::fromImage(image));

void MainWindow::sloNextPdf()

    QString pdf = QApplication::applicationDirPath() + "\\1.pdf";

     float width, height = 0;

     int page = 0;

    char *buf = PDFIumReader_GetNextPage(pdf.toStdString().c_str() , page, width, height,false);

    QImage image((uchar*)buf, width, height, QImage::Format_RGBA8888);

    ui->label->setPixmap(QPixmap::fromImage(image));

    qDebug()<<pdf;

void MainWindow::slotLastPdf()

    QString pdf = QApplication::applicationDirPath() + "\\1.pdf";

     float width, height = 0;

     int page = 0;

    char *buf = PDFIumReader_GetLastPage(pdf.toStdString().c_str() ,page, width, height,false);

    QImage image((uchar*)buf, width, height, QImage::Format_RGBA8888);

    ui->label->setPixmap(QPixmap::fromImage(image));

最后奉上该系列的所有源码和编译好的库:

地址:http://pan.baidu.com/s/1jIABjTG 密码:wstb

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