mixer.cs

实现微软OFFICEACCESE数据库自动备份功能

			this.MicroPhoneVolumeRange=mxc.Bounds;
			this.dwControlID_mircophone=mxc.dwControlID;
		}
		public void GetMicrophoneVolume(ref int left,ref int right)
		{
			this.GetVolume(dwControlID_mircophone,ref left,ref right);
		}
		public void SetMicrophoneVolume(int left,int right)
		{
			this.SetVolume(dwControlID_mircophone,left,right);
		}
		public void GetSpeakerVolume(ref int left,ref int right)
		{
			this.GetVolume(dwControlID_speaker,ref left,ref right);
		}
		public void SetSpeakerVolume(int left,int right)
		{
			this.SetVolume(dwControlID_speaker,left,right);
		}
		private void GetVolume(int controlid,ref int left,ref int right)
		{
			IntPtr volumes=Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(int))*2);
			Marshal.WriteInt32(volumes,0);
			Marshal.WriteInt32(volumes,4,0);
			gowk.multimedia.MIXERCONTROLDETAILS details=new MIXERCONTROLDETAILS();
			details.cbStruct=Marshal.SizeOf(details);
			details.cChannels=1;
			details.cbDetails=Marshal.SizeOf(typeof(int));
			details.cMultipleItems=0;
			details.dwControlID=controlid;
		//	details.paDetails=(int)volumes;
			int ret=Mixer.mixerGetControlDetails(m_hmx,ref details,0);
			left=Marshal.ReadInt32(volumes);
			right=Marshal.ReadInt32(volumes,Marshal.SizeOf(typeof(int)));
		}
		private void SetVolume(int controlid,int left,int right)
		{
			IntPtr volumes=Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(int))*2);
			Marshal.WriteInt32(volumes,left);
			Marshal.WriteInt32(volumes,4,right);
			gowk.multimedia.MIXERCONTROLDETAILS details=new MIXERCONTROLDETAILS();
			details.cbStruct=Marshal.SizeOf(details);
			details.cChannels=1;
			details.cbDetails=Marshal.SizeOf(typeof(int));
			details.cMultipleItems=0;
			details.dwControlID=controlid;
		//	details.paDetails=(int)volumes;
			int ret=Mixer.mixerSetControlDetails(m_hmx,ref details,0);
		//	left=Marshal.ReadInt32(volumes);
		//	right=Marshal.ReadInt32(volumes,Marshal.SizeOf(typeof(int)));
		}*/
		#endregion
		#region
		/*	private void button3_Click(object sender, System.EventArgs e)
		{
			
			int rst;

			rst=Mixer.mixerGetNumDevs();
			rst=Mixer.mixerOpen(ref m_hmx,0,0,0,Mixer.MIXER_OBJECTF_MIXER);


			MIXERCAPS caps=new MIXERCAPS();
			rst=Mixer.mixerGetDevCaps(m_hmx,ref caps,Marshal.SizeOf(typeof(MIXERCAPS)));
			MIXERLINE ml=new MIXERLINE();
			ml.cbStruct=Marshal.SizeOf(ml);
			ml.dwComponentType=Mixer.MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
			rst=Mixer.mixerGetLineInfo((int)m_hmx,ref ml, Mixer.MIXER_OBJECTF_HMIXER|Mixer.MIXER_GETLINEINFOF_COMPONENTTYPE);

			MIXERCONTROL mxc=new MIXERCONTROL();mxc.Bounds=new Volume();
			MIXERLINECONTROLS mxlc=new MIXERLINECONTROLS();

			IntPtr p=Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(MIXERCONTROL)));
			Marshal.StructureToPtr(mxc,p,true);

			mxlc.cbStruct = Marshal.SizeOf(typeof(MIXERLINECONTROLS));
			mxlc.dwLineID =ml.dwLineID;
			mxlc.dwControlType = Mixer.MIXERCONTROL_CONTROLTYPE_VOLUME;
			mxlc.cControls = 1;
			mxlc.cbmxctrl = Marshal.SizeOf(typeof(MIXERCONTROL));
			mxlc.pamxctrl = p;
			rst=Mixer.mixerGetLineControls((int)m_hmx,ref mxlc,Mixer.MIXER_OBJECTF_HMIXER |Mixer.MIXER_GETLINECONTROLSF_ONEBYTYPE);
			mxc=(MIXERCONTROL)Marshal.PtrToStructure(mxlc.pamxctrl,typeof(MIXERCONTROL));

			IntPtr volumes=Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(int))*2);
			Marshal.WriteInt32(volumes,0);
			Marshal.WriteInt32(volumes,4,0);
			gowk.multimedia.MIXERCONTROLDETAILS details=new MIXERCONTROLDETAILS();
			details.cbStruct=Marshal.SizeOf(details);
			details.cChannels=2;
			details.cbDetails=Marshal.SizeOf(typeof(int));
			details.cMultipleItems=0;
			details.dwControlID=mxc.dwControlID;
			details.paDetails=(int)volumes;
			rst=Mixer.mixerGetControlDetails(m_hmx,ref details,0);
			int l=Marshal.ReadInt32(volumes);
			int r=Marshal.ReadInt32(volumes,Marshal.SizeOf(typeof(int)));
		}*/
		#endregion
		#region 
		[DllImport("winmm.dll", EntryPoint="mixerClose")]
		public static extern int mixerClose (
			int hmx
			);
		[DllImport("winmm.dll", EntryPoint="mixerGetControlDetails")]
		public static extern int mixerGetControlDetails (
			int hmxobj,
			ref MIXERCONTROLDETAILS pmxcd,
			int fdwDetails
			);
		[DllImport("winmm.dll", EntryPoint="mixerGetDevCaps")]
		public static extern int mixerGetDevCaps (
			int uMxId,
			MIXERCAPS pmxcaps,
			int cbmxcaps
			);
		[DllImport("winmm.dll", EntryPoint="mixerGetID")]
		public static extern int mixerGetID (
			int hmxobj,
			ref int pumxID,
			int fdwId
			);
		[DllImport("winmm.dll", EntryPoint="mixerGetLineControls")]
		public static extern int mixerGetLineControls (
			int hmxobj,
			ref MIXERLINECONTROLS pmxlc,
			int fdwControls
			);
		[DllImport("winmm.dll", EntryPoint="mixerGetLineInfo")]
		public static extern int mixerGetLineInfo (
			int hmxobj,
			ref MIXERLINE pmxl,
			int fdwInfo
			);
		[DllImport("winmm.dll", EntryPoint="mixerGetNumDevs")]
		public static extern int mixerGetNumDevs ();
		[DllImport("winmm.dll", EntryPoint="mixerMessage")]
		public static extern int mixerMessage (
			int hmx,
			int uMsg,
			int dwParam1,
			int dwParam2
			);
		[DllImport("winmm.dll", EntryPoint="mixerOpen")]
		public static extern int mixerOpen (
			ref int phmx,
			int uMxId,
			int dwCallback,
			int dwInstance,
			int fdwOpen
			);
		[DllImport("winmm.dll", EntryPoint="mixerSetControlDetails")]
		public static extern int mixerSetControlDetails (
			int hmxobj,
			ref MIXERCONTROLDETAILS pmxcd,
			int fdwDetails
			);
		[DllImport("winmm.dll", EntryPoint="mixerClose")]
		public static extern int mixerClose (
			IntPtr hmx
			);
		[DllImport("winmm.dll", EntryPoint="mixerGetControlDetails")]
		public static extern int mixerGetControlDetails (
			IntPtr hmxobj,
			ref MIXERCONTROLDETAILS pmxcd,
			uint fdwDetails
			);
		[DllImport("winmm.dll", EntryPoint="mixerGetDevCaps")]
		public static extern int mixerGetDevCaps (
			IntPtr uMxId,
			ref MIXERCAPS pmxcaps,
			int cbmxcaps
			);
		[DllImport("winmm.dll", EntryPoint="mixerGetID")]
		public static extern int mixerGetID (
			IntPtr hmxobj,
			ref int pumxID,
			uint fdwId
			);
		[DllImport("winmm.dll", EntryPoint="mixerGetLineControls")]
		public static extern int mixerGetLineControls (
			int hmxobj,
			ref MIXERLINECONTROLS pmxlc,
			uint fdwControls
			);
		[DllImport("winmm.dll", EntryPoint="mixerGetLineInfo")]
		public static extern int mixerGetLineInfo (
			int hmxobj,
			ref MIXERLINE pmxl,
			uint fdwInfo
			);
		[DllImport("winmm.dll", EntryPoint="mixerMessage")]
		public static extern int mixerMessage (
			IntPtr hmx,
			int uMsg,
			int dwParam1,
			int dwParam2
			);
		[DllImport("winmm.dll", EntryPoint="mixerOpen")]
		public static extern int mixerOpen (
			ref IntPtr phmx,
			int uMxId,
			int dwCallback,
			int dwInstance,
			uint fdwOpen
			);
		[DllImport("winmm.dll", EntryPoint="mixerSetControlDetails")]
		public static extern int mixerSetControlDetails (
			IntPtr hmxobj,
			ref MIXERCONTROLDETAILS pmxcd,
			uint fdwDetails
			);
		public const uint MIXER_OBJECTF_HANDLE    =0x80000000;
		public const int MIXER_OBJECTF_MIXER     =0x00000000;
		public const uint MIXER_OBJECTF_HMIXER    =(MIXER_OBJECTF_HANDLE|MIXER_OBJECTF_MIXER);
		public const int MIXER_OBJECTF_WAVEOUT   =0x10000000;
		//public const int MIXER_OBJECTF_HWAVEOUT  =(MIXER_OBJECTF_HANDLE|MIXER_OBJECTF_WAVEOUT);
		public const int MIXER_OBJECTF_WAVEIN    =0x20000000;
		//public const int MIXER_OBJECTF_HWAVEIN   =(MIXER_OBJECTF_HANDLE|MIXER_OBJECTF_WAVEIN);
		public const int MIXER_OBJECTF_MIDIOUT   =0x30000000;
		//public const int MIXER_OBJECTF_HMIDIOUT  =(MIXER_OBJECTF_HANDLE|MIXER_OBJECTF_MIDIOUT);
		public const int MIXER_OBJECTF_MIDIIN    =0x40000000;
		//public const int MIXER_OBJECTF_HMIDIIN   =(MIXER_OBJECTF_HANDLE|MIXER_OBJECTF_MIDIIN);
		public const int MIXER_OBJECTF_AUX       =0x50000000;

		public const int MIXER_GETLINEINFOF_DESTINATION     = 0x00000000;
		public const int MIXER_GETLINEINFOF_SOURCE           =0x00000001;
		public const int  MIXER_GETLINEINFOF_LINEID           =0x00000002;
		public const int  MIXER_GETLINEINFOF_COMPONENTTYPE    =0x00000003;

		public const int MIXERLINE_COMPONENTTYPE_DST_FIRST       =0x00000000;
		public const int MIXERLINE_COMPONENTTYPE_DST_SPEAKERS    =(MIXERLINE_COMPONENTTYPE_DST_FIRST + 4);
		public const int MIXERLINE_COMPONENTTYPE_SRC_FIRST       =0x00001000;
		public const int MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE  =(MIXERLINE_COMPONENTTYPE_SRC_FIRST + 3);
		public const int MIXERLINE_COMPONENTTYPE_DST_WAVEIN      =(MIXERLINE_COMPONENTTYPE_DST_FIRST + 7);

		public const int MIXERCONTROL_CT_CLASS_FADER         =0x50000000;
		public const int MIXERCONTROL_CT_UNITS_UNSIGNED      =0x00030000;
public const int MIXERCONTROL_CT_CLASS_SWITCH        =0x20000000;
public const int MIXERCONTROL_CT_SC_SWITCH_BOOLEAN   =0x00000000;
public const int MIXERCONTROL_CT_UNITS_BOOLEAN      = 0x00010000;
public const int MIXERCONTROL_CONTROLTYPE_BOOLEAN        =(MIXERCONTROL_CT_CLASS_SWITCH | MIXERCONTROL_CT_SC_SWITCH_BOOLEAN | MIXERCONTROL_CT_UNITS_BOOLEAN);
		public const int MIXERCONTROL_CONTROLTYPE_FADER          =(MIXERCONTROL_CT_CLASS_FADER | MIXERCONTROL_CT_UNITS_UNSIGNED);
		public const int MIXERCONTROL_CONTROLTYPE_VOLUME         =(MIXERCONTROL_CONTROLTYPE_FADER + 1);
		public const int MIXERCONTROL_CONTROLTYPE_MUTE          =(MIXERCONTROL_CONTROLTYPE_BOOLEAN + 2);
		public const int MIXER_GETLINECONTROLSF_ONEBYTYPE        =0x00000002;
		public const int MIXER_GETCONTROLDETAILSF_VALUE     = 0x00000000;

public const int MM_MIXM_LINE_CHANGE     =0x3D0;       /* mixer line change notify */
public const int MM_MIXM_CONTROL_CHANGE  =0x3D1;       /* mixer control change notify */
		#endregion
	}
}