Question

void Qvideomedia::on_pushButton_clicked()
{

    QVideoWidget* vw = new QVideoWidget();

    QMediaPlayer* mp = new QMediaPlayer(vw);

    QString vidstring = QFileDialog::getOpenFileName(this, "Select video file", QDir::homePath());

    mp->setMedia(QUrl::fromLocalFile(vidstring));
    mp->setVideoOutput(vw);
    vw->setGeometry(100, 100, 500, 500);
    vw->show();
    mp->play();
}

我有两个类，一个包含主窗口，另一个包含自己的窗口，每当我播放视频时，Qvideowiget都有自己的窗口，我想在第二个窗口中显示QVideowidget，但是我的所有效果都没有取得了丰硕的成果……预先感谢

Answer 1

您应该使QVideowidget成为第二个窗口的子窗口。看看这段代码，您刚刚在代码中添加了一行

<form>
  Service fee :
  <input type="text" value="300" name="invoiceValue" required>

  <select name="taxType" required>
    <option>Select Tax Type</option>
    <option value='1'>CGST 9% AND SGST 9% on service fee</option>
    <option value='2'>IGST 18% on service fee</option>
  </select> 

  <input type="submit"  name="submit">

</form>

<?php
  $invoiceValue = $_POST['invoiceValue'];
  $ctax= $_POST['taxType'];

  $sql_query = '';

  if($ctax == 1):
    $cgst = ($invoiceValue*9)/100;
    $sgst = ($invoiceValue*9)/100;
    $sql_query= "INSERT INTO `VISAINVC` (cgst,sgst) VALUES ($cgst, $sgst);";
  else if($ctax == 2):
    $igst = ($invoiceValue*18)/100;
    $sql_query= "INSERT INTO `VISAINVC` (igst) VALUES ($igst);";
  endif;

?>

如何将Qvideowidget添加到第二个主窗口

1 个答案: