How to play a video on a translucent QWidget?
-
#include "videoplayer.h"
#include <QtWidgets/QApplication>
#include "qboxlayout.h"
#include "qvideowidget.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QWidget *w = new QWidget;w->setWindowFlags(Qt :: Window | Qt::FramelessWindowHint ); w->setAttribute(Qt::WA_TranslucentBackground, true); w->setMinimumSize(300,200); QVideoWidget *videoWidget = new QVideoWidget; QBoxLayout *controlLayout = new QHBoxLayout; controlLayout->setMargin(0); controlLayout->addWidget(videoWidget); w->setLayout(controlLayout); QMediaPlayer mediaPlayer; mediaPlayer.setVideoOutput(videoWidget); mediaPlayer.setMedia(QUrl::fromLocalFile("C:/1.wmv")); videoWidget->show(); mediaPlayer.play(); w->show(); return app.exec();
}
when two line w->setWindowFlags(Qt :: Window | Qt::FramelessWindowHint ); w->setAttribute(Qt::WA_TranslucentBackground, true); remove the movie show correctly.
somebody tell ,in this case i use a custom video widget and in paintEvent after createing QPainter painter(this); add
painter.setCompositionMode(QPainter::RasterOp_SourceAndNotDestination); but i use, it is No effect! Someone met?Someone met ?Someone solution?