qt播放器qt mediaplayer

在网上找了一个别人的旧版本的播放器~自己更改了一天，终于可运行了，希望分享下同共学习； 不过出了少少问题：希望有经验的一起指导下： 运行环境：qt creator +windows 1、原计划是可支持视频播放的，现在只能加载间频（mp3），一加载视频就卡死 2.、自定义的进度条不起作用，不知为什么百分比槽连接不成功 connect(wmp, SIGNAL(PositionChange(double, double)),this, SLOT(Slot_onPositionChange(double, double))); 3、我用的是QAxWidget控件，这个是不是只支持windows的呢？或者还有没其实更好的？ /******************************************************************************************* 项目名：QT播放器 Qt Mediaplayer 工程师：枫儿 完成时间：2009年12月28日 技术支持：嵌入式家园 www.studyarm.cn www.mcupark.com *******************************************************************************************/ #include "playerwindow.h" #include <QPushButton> #include <QAxWidget> #include <QSlider> #include <QLayout> #include <QTimer> #include <QTimerEvent> #include <QFileDialog> #include <QDir> PlayerWindow::PlayerWindow() { //setCaption(tr("Media Player")); fileFilters = tr("Video files (*.mpg *.mpeg *.avi *.wmv)\n" //原来字符串换行也可这样用 "Audio files (*.mp3 *.wav)"); updateTimer = 0; setMouseTracking(true); this->wmp = new QAxWidget(this); wmp->setControl("{22D6F312-B0F6-11D0-94AB-0080C74C7E95}"); // wmp->setProperty("ShowControls", QVariant(false, 0)); wmp->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Expanding); connect(wmp, SIGNAL(PlayStateChange(int, int)),this, SLOT(Slot_onPlayStateChange(int, int))); connect(wmp, SIGNAL(ReadyStateChange(ReadyStateConstants)),this, SLOT(Slot_onReadyStateChange(ReadyStateConstants))); connect(wmp, SIGNAL(PositionChange(double, double)),this, SLOT(Slot_onPositionChange(double, double))); this->openButton = new QPushButton(tr("&Open")); connect(openButton, SIGNAL(clicked()), this, SLOT(Slot_openFile())); this->playPauseButton = new QPushButton(tr("&Play")); connect(playPauseButton, SIGNAL(clicked()), wmp, SLOT(Play())); this->stopButton = new QPushButton(tr("&Stop")); connect(stopButton, SIGNAL(clicked()), wmp, SLOT(Stop())); this->seekSlider = new QSlider(Qt::Horizontal, this); seekSlider->setEnabled(false); connect(seekSlider, SIGNAL(valueChanged(int)),this, SLOT(Slot_sliderValueChanged(int))); connect(seekSlider, SIGNAL(sliderPressed()),wmp, SLOT(Pause())); QHBoxLayout *buttonLayout = new QHBoxLayout; buttonLayout->addWidget(openButton); buttonLayout->addWidget(playPauseButton); buttonLayout->addWidget(stopButton); QVBoxLayout *mainLayout = new QVBoxLayout(this); mainLayout->addWidget(wmp); mainLayout->addLayout(buttonLayout); mainLayout->addWidget(seekSlider); this->setLayout(mainLayout); }