Qt显示pdf之五在Qt中使用

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