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 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.");
}
}
