public int ToggleMute()
{
int hr = 0;
if ((graphBuilder == null) || (basicAudio == null))
{
return(0);
}
// Read current volume
hr = basicAudio.get_Volume(out currentVolume);
if (hr == -1) //E_NOTIMPL
{
// Fail quietly if this is a video-only media file
return(0);
}
else if (hr < 0)
{
return(hr);
}
// Switch volume levels
if (currentVolume == VolumeFull)
{
currentVolume = VolumeSilence;
}
else
{
currentVolume = VolumeFull;
}
// Set new volume
hr = basicAudio.put_Volume(currentVolume);
return(hr);
}
void Network_VolumeDown()
{
if (this.InvokeRequired)
{
Network.SimpleEvent d = new Network.SimpleEvent(Network_VolumeDown);
this.Invoke(d);
}
else
{
if (audio_mixer != null)
{
audio_mixer.put_Volume(volume - 500);
audio_mixer.get_Volume(out volume);
Network.SendStatus(channel, volume, (this.currentState == PlayState.Running));
}
}
}
private bool IsMuted()
{
int volume;
if (basicAudio == null)
{
return(true);
}
int hr = basicAudio.get_Volume(out volume);
if (hr < 0)
{
//error - no sound
return(true);
}
return(volume == VolumeSilence);
}
protected override int GetAudioVolume()
{
int val = -1;
if (isAudioAvailable)
{
int hr = basicAudio.get_Volume(out val);
DsError.ThrowExceptionForHR(hr);
}
return(val);
}
internal void trackBarVolume_ValueChanged(object sender, EventArgs e)
{
MainForm.Settings.Volume = this.trackBarVolume.Value;
if (this.MainForm.GraphBuilder != null)
{
IBasicAudio basicAudio = this.MainForm.GraphBuilder.FilterGraph as IBasicAudio;
if (basicAudio != null)
{
basicAudio.put_Volume(this.trackBarVolume.Value);
int volume = 0;
basicAudio.get_Volume(out volume);
this.labelVolumeLevel.Text = volume.ToString();
return;
}
}
this.labelVolumeLevel.Text = this.trackBarVolume.Value.ToString();
}
//set the trackBar1'value equel the video'progress
private void updateTimeBarThread()
{
double time;
int volu;
while (true)
{
mediaPosition.get_CurrentPosition(out time);
Console.WriteLine(time);
basicAudio.get_Volume(out volu);
Console.WriteLine(volu);
this.BeginInvoke(new MethodInvoker(() =>
{
trackBar1.Value = (int)time;
}));
Thread.Sleep(1000);
}
}
private void updateTimeBarThread()
{
long time;
int volu;
while (true)
{
try {
MediaSeeking.GetCurrentPosition(out time);
BasicAudio.get_Volume(out volu);
this.BeginInvoke(new MethodInvoker(() => { trackBar1.Value = (int)time; }));
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
Thread.Sleep(1000);
}
}
/// <summary>
/// Mute or unmute the sound.
/// </summary>
public void Mute()
{
int hr = 0;
// Stop and reset postion to beginning
if ((_currentState == PlayState.Paused) || (_currentState == PlayState.Running))
{
// Read current volume
hr = _basicAudio.get_Volume(out _currentVolume);
//E_NOTIMPL
if (hr == -1)
{
// Fail quietly if this is a video-only media file
return;
}
else if (hr < 0)
{
return;
}
// Switch volume levels
if (_currentVolume == VolumeFull)
{
_currentVolume = VolumeSilence;
}
else
{
_currentVolume = VolumeFull;
}
// Set new volume
hr = _basicAudio.put_Volume(_currentVolume);
DsError.ThrowExceptionForHR(hr);
}
}
public bool GetVolume(out int volume)
{
return(_basicAudio.get_Volume(out volume) == DsHlp.S_OK);
}