public void Close()
{
if (objRun != null)
{
objRun.Cancel();
}
if (mc != null)
{
mc.Stop();
mc = null;
}
if (graphManager != null)
{
graphManager.Stop();
graphManager = null;
}
wm = null;
me = null;
mp = null;
if (objRun != null)
{
objRun.Cancel();
objRun.Stop();
objRun = null;
}
ctrlOwner = null;
}
/**********************************************************
* 摘要:此方法收集要显示的 AVI 的文件名，
* 然后创建 Quartz COM 对象的实例。
* 为了显示 AVI，程序对
* IMediaControl 调用 RenderFile 和 Run。Quartz 使用自己的线程和窗口来显示
* AVI。主线程阻塞在 ReadLine 上，直到用户按
* Enter 键为止。
* 输入参数:要显示的 avi 文件的位置
* 返回值:void
*************************************************************/
public static void Main(string[] args)
{
// 检查用户是否传入了文件名:
if (args.Length != 1)
{
DisplayUsage();
return;
}
if (args[0] == "/?")
{
DisplayUsage();
return;
}
String filename = args[0];
// 检查文件是否存在
if (!System.IO.File.Exists(filename))
{
Console.WriteLine("File " + filename + " not found.");
DisplayUsage();
return;
}
// 创建 Quartz 的实例
// (Calls CoCreateInstance(E436EBB3-524F-11CE-9F53-0020AF0BA770,
// NULL, CLSCTX_ALL, IID_IUnknown,
// &graphManager).):
try
{
QuartzTypeLib.FilgraphManager graphManager =
new QuartzTypeLib.FilgraphManager();
// IMediaControl 接口的 QueryInterface:
QuartzTypeLib.IMediaControl mc =
(QuartzTypeLib.IMediaControl)graphManager;
// 对 COM 接口调用某些方法。
// 将文件传递给 COM 对象上的 RenderFile 方法。
mc.RenderFile(filename);
// 显示文件。
mc.Run();
}
catch (Exception ex)
{
Console.WriteLine("Unexpected COM exception: " + ex.Message);
}
// 等待完成。
Console.WriteLine("Press Enter to continue.");
Console.ReadLine();
}
/************************************************************
* Аннотация. Этот метод находит имя AVI-файла для воспроизведения,
* а затем создает экземпляр COM-объекта Quartz.
* Чтобы воспроизвести AVI-файл, программа вызывает методы RenderFile и Run из
* IMediaControl. Quartz использует свои собственные поток и окно для воспроизведения
* AVI-файла. Главный поток заблокирован на ReadLine до тех пор, пока пользователь не нажмет клавишу
* ВВОД.
* Входные параметры: место размещения avi-файла, предназначенного для воспроизведения
* Возвращает: void
**************************************************************/
public static void Main(string[] args)
{
// Проверка передачи пользователем имени файла:
if (args.Length != 1)
{
DisplayUsage();
return;
}
if (args[0] == "/?")
{
DisplayUsage();
return;
}
String filename = args[0];
// Проверка наличия файла
if (!System.IO.File.Exists(filename))
{
Console.WriteLine("File " + filename + " not found.");
DisplayUsage();
return;
}
// Создание экземпляра Quartz
// (Calls CoCreateInstance(E436EBB3-524F-11CE-9F53-0020AF0BA770,
// NULL, CLSCTX_ALL, IID_IUnknown,
// &graphManager).):
try
{
QuartzTypeLib.FilgraphManager graphManager =
new QuartzTypeLib.FilgraphManager();
// QueryInterface для интерфейса IMediaControl:
QuartzTypeLib.IMediaControl mc =
(QuartzTypeLib.IMediaControl)graphManager;
// Вызов некоторых методов COM-интерфейса
// Передача файла в метод RenderFile COM-объекта.
mc.RenderFile(filename);
// Показать файл.
mc.Run();
}
catch (Exception ex)
{
Console.WriteLine("Unexpected COM exception: " + ex.Message);
}
// Дождитесь завершения.
Console.WriteLine("Press Enter to continue.");
Console.ReadLine();
}
/**********************************************************
* Abstract: This method collects the filename of an AVI to show
* then creates an instance of the Quartz COM object.
* To show the AVI, the program calls RenderFile and Run on
* IMediaControl. Quartz uses its own thread and window to
* display the AVI. The main thread blocks on a ReadLine until
* the user presses ENTER.
* Input Parameters: the location of the avi file it is going to display
* Returns: void
*************************************************************/
public static void Main(string[] args)
{
// Check to see if the user passed in a filename:
if (args.Length != 1)
{
DisplayUsage();
return;
}
if (args[0] == "/?")
{
DisplayUsage();
return;
}
String filename = args[0];
// Check to see if the file exists
if (!System.IO.File.Exists(filename))
{
Console.WriteLine("File " + filename + " not found.");
DisplayUsage();
return;
}
// Create instance of Quartz
// (Calls CoCreateInstance(E436EBB3-524F-11CE-9F53-0020AF0BA770,
// NULL, CLSCTX_ALL, IID_IUnknown,
// &graphManager).):
try
{
QuartzTypeLib.FilgraphManager graphManager =
new QuartzTypeLib.FilgraphManager();
// QueryInterface for the IMediaControl interface:
QuartzTypeLib.IMediaControl mc =
(QuartzTypeLib.IMediaControl)graphManager;
// Call some methods on a COM interface.
// Pass in file to RenderFile method on COM object.
mc.RenderFile(filename);
// Show file.
mc.Run();
}
catch (Exception ex)
{
Console.WriteLine("Unexpected COM exception: " + ex.Message);
}
// Wait for completion.
Console.WriteLine("Press Enter to continue.");
Console.ReadLine();
}
private void play(string args)
{
m_FilterManager = new QuartzTypeLib.FilgraphManager(); //
m_FilterManager.RenderFile(args); //设置待播放文件
m_VideoWindow = m_FilterManager as QuartzTypeLib.IVideoWindow; //设置播放窗体
m_VideoWindow.Owner = (int)(this.panel1.Handle);
m_VideoWindow.WindowStyle &= ~WS_BORDER;
m_VideoWindow.SetWindowPosition(0, 0, this.panel1.Width, this.panel1.Height);
m_MediaEvent = m_FilterManager as QuartzTypeLib.IMediaEvent; //设置媒体事件
m_MediaEventEx = m_FilterManager as QuartzTypeLib.IMediaEventEx; //设置媒体事件扩展
m_MediaPos = m_FilterManager as QuartzTypeLib.IMediaPosition; //设置媒体位置
m_MediaCtrl = m_FilterManager as QuartzTypeLib.IMediaControl; //设置媒体控制器
}
private void cmdPlay_Click(object sender, EventArgs e)
{
if (mc == null)
{
// This audio is being played for the first time.
// Load the file.
// Access the IMediaControl interface.
graphManager = new QuartzTypeLib.FilgraphManager();
mc = (QuartzTypeLib.IMediaControl)graphManager;
audio = (QuartzTypeLib.IBasicAudio)graphManager;
position = (QuartzTypeLib.IMediaPosition)graphManager;
mEventEx = (QuartzTypeLib.IMediaEventEx)graphManager;
try
{
// Choose a file.
mc.RenderFile(Application.StartupPath + "\\test.mp3");
mEventEx.SetNotifyWindow((int)this.Handle, WM_GRAPHNOTIFY, 0);
}
catch (FileNotFoundException err)
{
MessageBox.Show("File not found.");
return;
}
catch (COMException err)
{
MessageBox.Show("COM error.");
return;
}
}
// Start playing the audio asynchronously.
try
{
statusLabel1.Text = "Total: " +
ConvertTimeToString((int)position.Duration);
mc.Run();
timer1.Start();
}
catch (COMException err)
{
MessageBox.Show("COM error.");
}
}
private void initMCI()
{
graphManager =
new QuartzTypeLib.FilgraphManagerClass();
VideoPosition = new System.Drawing.Point(0, 0);
ManualSize = new System.Drawing.Size(100, 100);
VideoAllign = System.Drawing.ContentAlignment.MiddleCenter;
// QueryInterface for the IMediaControl interface:
mc = (QuartzTypeLib.IMediaControl)graphManager;
wm = (QuartzTypeLib.IVideoWindow)graphManager;
me = (QuartzTypeLib.IMediaEvent)graphManager;
mp = (QuartzTypeLib.IMediaPosition)graphManager;
if (objRun != null)
{
objRun.Stop();
objRun = null;
}
bLoaded = false;
}
private void cmdPlay_Click(object sender, EventArgs e)
{
if (mc == null)
{
// This audio is being played for the first time.
// Load the file.
// Access the IMediaControl interface.
graphManager = new QuartzTypeLib.FilgraphManager();
mc = (QuartzTypeLib.IMediaControl)graphManager;
audio = (QuartzTypeLib.IBasicAudio)graphManager;
position = (QuartzTypeLib.IMediaPosition)graphManager;
mEventEx = (QuartzTypeLib.IMediaEventEx)graphManager;
try
{
// Choose a file.
mc.RenderFile(Application.StartupPath + "\\test.mp3");
mEventEx.SetNotifyWindow((int)this.Handle, WM_GRAPHNOTIFY, 0);
}
catch (FileNotFoundException err)
{
MessageBox.Show("File not found.");
return;
}
catch (COMException err)
{
MessageBox.Show("COM error.");
return;
}
}
// Start playing the audio asynchronously.
try
{
statusLabel1.Text = "Total: " +
ConvertTimeToString((int)position.Duration);
mc.Run();
timer1.Start();
}
catch (COMException err)
{
MessageBox.Show("COM error.");
}
}
