@jsulm not work when they have same parent
#pragma once
#include <QWidget>
#include <QQuickWidget>
#include "VideoWidget.h"
#include "OpenGLWidget.h"
class MyWidget: public QWidget
{
public:
MyWidget(QWidget *parent);
void SetSubWidget();
};
#include "Mywidget.h"
MyWidget::MyWidget(QWidget* parent)
: QWidget(parent)
{
this->setGeometry(0,0, 1920, 1080);
this->setWindowFlags(Qt::FramelessWindowHint);
QPalette palette;
palette.setColor(QPalette::Window, Qt::GlobalColor::black);
this->setAutoFillBackground(true);
this->setPalette(palette);
this->show();
}
void MyWidget::SetSubWidget()
{
VideoWidget* videoWidget = new VideoWidget(this);
videoWidget->setGeometry(0, 0, 512, 384);
QPalette palette1;
palette1.setColor(QPalette::Window, Qt::GlobalColor::red);
videoWidget->setAutoFillBackground(true);
videoWidget->setPalette(palette1);
videoWidget->show();
// not work
QWidget* transparentWidget1 = new QWidget(this);
transparentWidget1->setGeometry(0, 0, 100, 100);
transparentWidget1->show();
// work
QWidget* transparentWidget2 = new QWidget(nullptr);
transparentWidget2->setAttribute(Qt::WA_TranslucentBackground, true);
transparentWidget2->setWindowFlags(Qt::FramelessWindowHint);
transparentWidget2->setGeometry(100, 100, 100, 100);
transparentWidget2->show();
// work
QWidget* transparentWidget3 = new QWidget(videoWidget);
transparentWidget3->setGeometry(200, 200, 100, 100);
transparentWidget3->show();
}
#pragma once
#include <QWidget>
#include <mpv/client.h>
class VideoWidget : public QWidget
{
Q_OBJECT
public:
VideoWidget(QWidget* parent);
private:
mpv_handle* mpv;
};
#include "VideoWidget.h"
VideoWidget::VideoWidget(QWidget* parent)
:QWidget(parent)
{
mpv = mpv_create();
if (!mpv)
{
qDebug() << "could not create mpv context";
throw std::runtime_error("could not create mpv context");
}
int64_t wid = this->winId();
mpv_set_property(mpv, "wid", MPV_FORMAT_INT64, &wid);
qDebug() << "wid is " << wid;
mpv_set_property_string(mpv, "hwdec", "auto");
mpv_set_property_string(mpv, "loop-file", "inf");
if (mpv_initialize(mpv) < 0)
{
qDebug() << "could not initialize mpv context";
throw std::runtime_error("could not initialize mpv context");
}
const char* args[] = { "loadfile", "4k_60.mp4", NULL };
mpv_command_async(mpv, 0, args);
}
#include <QWidget>
#include "Mywidget.h"
#include <QApplication>
#include <QTimer>
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MyWidget *mywidget = new MyWidget(nullptr);
QTimer::singleShot(2000, mywidget, [&]() {
mywidget->SetSubWidget();
});
return app.exec();;
}
[image: 1710fca3-7a84-4b57-a4e0-403fbe919762.png]
