Exemple #1
0
        /// <summary>
        /// Gets all the mixer controls
        /// </summary>
        /// <param name="mixerHandle">Mixer Handle</param>
        /// <param name="mixerLine">Mixer Line</param>
        /// <param name="mixerHandleType">Mixer Handle Type</param>
        /// <returns></returns>
        public static IList <MixerControl> GetMixerControls(IntPtr mixerHandle, MixerLine mixerLine,
                                                            MixerFlags mixerHandleType)
        {
            var controls = new List <MixerControl>();

            if (mixerLine.ControlsCount > 0)
            {
                int    mixerControlSize = Marshal.SizeOf(typeof(MixerInterop.MIXERCONTROL));
                var    mlc = new MixerInterop.MIXERLINECONTROLS();
                IntPtr pmc = Marshal.AllocHGlobal(mixerControlSize * mixerLine.ControlsCount);
                mlc.cbStruct  = Marshal.SizeOf(mlc);
                mlc.dwLineID  = mixerLine.LineId;
                mlc.cControls = mixerLine.ControlsCount;
                mlc.pamxctrl  = pmc;
                mlc.cbmxctrl  = Marshal.SizeOf(typeof(MixerInterop.MIXERCONTROL));
                try
                {
                    MmResult err = MixerInterop.mixerGetLineControls(mixerHandle, ref mlc, MixerFlags.All | mixerHandleType);
                    if (err != MmResult.NoError)
                    {
                        throw new MmException(err, "mixerGetLineControls");
                    }
                    for (int i = 0; i < mlc.cControls; i++)
                    {
                        Int64 address = pmc.ToInt64() + mixerControlSize * i;

                        var mc = (MixerInterop.MIXERCONTROL)
                                 Marshal.PtrToStructure((IntPtr)address, typeof(MixerInterop.MIXERCONTROL));
                        var mixerControl = GetMixerControl(mixerHandle, mixerLine.LineId, mc.dwControlID, mixerLine.Channels,
                                                           mixerHandleType);

                        controls.Add(mixerControl);
                    }
                }
                finally
                {
                    Marshal.FreeHGlobal(pmc);
                }
            }
            return(controls);
        }
Exemple #2
0
        /// <summary>
        /// Gets all the mixer controls
        /// </summary>
        /// <param name="mixerHandle">Mixer Handle</param>
        /// <param name="mixerLine">Mixer Line</param>
        /// <param name="mixerHandleType">Mixer Handle Type</param>
        /// <returns></returns>
        public static IList<MixerControl> GetMixerControls(IntPtr mixerHandle, MixerLine mixerLine,
                                                           MixerFlags mixerHandleType)
        {
            var controls = new List<MixerControl>();
            if (mixerLine.ControlsCount > 0)
            {
                int mixerControlSize = Marshal.SizeOf(typeof (MixerInterop.MIXERCONTROL));
                var mlc = new MixerInterop.MIXERLINECONTROLS();
                IntPtr pmc = Marshal.AllocHGlobal(mixerControlSize * mixerLine.ControlsCount);
                mlc.cbStruct = Marshal.SizeOf(mlc);
                mlc.dwLineID = mixerLine.LineId;
                mlc.cControls = mixerLine.ControlsCount;
                mlc.pamxctrl = pmc;
                mlc.cbmxctrl = Marshal.SizeOf(typeof(MixerInterop.MIXERCONTROL));
                try
                {
                    MmResult err = MixerInterop.mixerGetLineControls(mixerHandle, ref mlc, MixerFlags.All | mixerHandleType);
                    if (err != MmResult.NoError)
                    {
                        throw new MmException(err, "mixerGetLineControls");
                    }
                    for (int i = 0; i < mlc.cControls; i++)
                    {
                        Int64 address = pmc.ToInt64() + mixerControlSize * i;

                        var mc = (MixerInterop.MIXERCONTROL)
                            Marshal.PtrToStructure((IntPtr)address, typeof(MixerInterop.MIXERCONTROL));
                        var mixerControl = GetMixerControl(mixerHandle, mixerLine.LineId, mc.dwControlID, mixerLine.Channels,
                                                                                 mixerHandleType);

                        controls.Add(mixerControl);
                    }
                }
                finally
                {
                    Marshal.FreeHGlobal(pmc);
                }

            }
            return controls;
        }
Exemple #3
0
 /// <summary>
 /// Microphone Level
 /// </summary>
 public MixerLine GetMixerLine()
 {
     // TODO use mixerGetID instead to see if this helps with XP
     MixerLine mixerLine;
     if (waveInHandle != IntPtr.Zero)
     {
         mixerLine = new MixerLine(this.waveInHandle, 0, MixerFlags.WaveInHandle);
     }
     else
     {
         mixerLine = new MixerLine((IntPtr)DeviceNumber, 0, MixerFlags.WaveIn);
     }
     return mixerLine;
 }