private MIXERLINE GetLine()
{
MIXERLINE ml = new MIXERLINE();
if (this.component_type == MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE)
{
MIXERLINE inLine = new MIXERLINE();
inLine.cbStruct = Marshal.SizeOf(inLine);
inLine.dwComponentType = Mixer.MIXERLINE_COMPONENTTYPE_DST_WAVEIN;
Mixer.mixerGetLineInfo((int)mixer.Handle, ref inLine, Mixer.MIXER_GETLINEINFOF_COMPONENTTYPE);
for (int i = 0; i < inLine.cConnections; i++)
{
ml = new MIXERLINE();
ml.cbStruct = Marshal.SizeOf(ml);
ml.dwSource = (uint)i;
ml.dwDestination = inLine.dwDestination;
Mixer.mixerGetLineInfo((int)mixer.Handle, ref ml, Mixer.MIXER_GETLINEINFOF_SOURCE);
if (ml.dwComponentType == this.component_type)
{
break;
}
}
}
else
{
ml = new MIXERLINE();
ml.cbStruct = Marshal.SizeOf(ml);
ml.dwComponentType = this.component_type;
Mixer.mixerGetLineInfo((int)mixer.Handle, ref ml, Mixer.MIXER_OBJECTF_HMIXER | Mixer.MIXER_GETLINEINFOF_COMPONENTTYPE);
}
return(ml);
}
private void Initialize()
{
MIXERLINE ml = this.GetLine();
this.lineid = ml.dwLineID;
this.name = ml.szName;
MIXERCONTROL ctl = this.GetLineControl(Mixer.MIXERCONTROL_CONTROLTYPE_VOLUME);
this.min = ctl.Bounds.dwMinimum;
this.max = ctl.Bounds.dwMaximum;
this.volume_controlid = ctl.dwControlID;
ctl = this.GetLineControl(Mixer.MIXERCONTROL_CONTROLTYPE_MUTE);
this.mute_controlid = ctl.dwControlID;
this.volume = this.GetValue(this.volume_controlid);
this.mute = this.GetValue(this.mute_controlid) == 0;
}
public static extern int mixerGetLineInfo(
int hmxobj,
ref MIXERLINE pmxl,
uint fdwInfo
);
public static extern int mixerGetLineInfo ( int hmxobj, ref MIXERLINE pmxl, uint fdwInfo );
private MIXERLINE GetLine()
{
MIXERLINE ml=new MIXERLINE();
if(this.component_type==MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE)
{
MIXERLINE inLine=new MIXERLINE();
inLine.cbStruct=Marshal.SizeOf(inLine);
inLine.dwComponentType=Mixer.MIXERLINE_COMPONENTTYPE_DST_WAVEIN;
Mixer.mixerGetLineInfo((int)mixer.Handle,ref inLine,Mixer.MIXER_GETLINEINFOF_COMPONENTTYPE);
for(int i=0;i<inLine.cConnections;i++)
{
ml=new MIXERLINE();
ml.cbStruct=Marshal.SizeOf(ml);
ml.dwSource=(uint)i;
ml.dwDestination=inLine.dwDestination;
Mixer.mixerGetLineInfo((int)mixer.Handle,ref ml,Mixer.MIXER_GETLINEINFOF_SOURCE);
if(ml.dwComponentType==this.component_type)break;
}
}
else
{
ml=new MIXERLINE();
ml.cbStruct=Marshal.SizeOf(ml);
ml.dwComponentType=this.component_type;
Mixer.mixerGetLineInfo((int)mixer.Handle,ref ml, Mixer.MIXER_OBJECTF_HMIXER|Mixer.MIXER_GETLINEINFOF_COMPONENTTYPE);
}
return ml;
}
