/******************************************************************************/
/* Voicemeeter Remote API.                                       V.Burel©2015 */
/******************************************************************************/
/* This Library allows communication with Voicemeeter Applications            */
/* 4 Client Applications can be connected to remote Voicemeeter.              */
/******************************************************************************/
/*                                                                            */
/*                  OFFICIAL LINK : WWW.VOICEMEETER.COM                       */
/*                                                                            */
/******************************************************************************/
/* COPYRIGHT: Vincent Burel(c)2015 All Rights Reserved                        */
/******************************************************************************/
/* LICENSING: This header file and VoicemeeterRemote.dll are made available   */
/*            for evaluation and testing purpose only (to make demo and proof */
/*            of concept).                                                    */
/*                                                                            */
/*            for any commercial exploitation or to get specific support,     */
/*            a commercial license needs to be purchased. thanks to contact   */
/*            us by e-mail (get our contact on www.vb-audio.com).             */
/******************************************************************************/
/* long = 32 bit integer                                                      */
/******************************************************************************/


#ifndef __VOICEMEETER_REMOTE_H__
#define __VOICEMEETER_REMOTE_H__

#ifdef __cplusplus
extern "C" {
#endif


#define VBVMR_RESULT_OK			0

/******************************************************************************/
/*                                                                            */
/*                                    Login                                   */
/*                                                                            */
/******************************************************************************/

/** @name Communication Login / logout
* @{ */

	/** 
	@brief Open Communication Pipe With Voicemeeter (typically called on software startup).
	@return :	 0: OK (no error).
				 1: OK but Voicemeeter Application not launched.
				-1: cannot get client (unexpected)
				-2: unexpected login (logout was expected before).
	*/

long __stdcall VBVMR_Login(void);

	/** 
	@brief Close Communication Pipe With Voicemeeter (typically called on software end).
	@return : 0 if ok.
	*/

long __stdcall VBVMR_Logout(void);


	/** 
	@brief Run Voicemeeter Application (get installation directory and run Voicemeeter Application).
	@param vType : Voicemeeter type (1 = Voicemeeter, 2= Voicemeeter Banana).
	@return :	 0: Ok.
				-1: not installed
	*/

long __stdcall VBVMR_RunVoicemeeter(long vType);


/** @}  */











/******************************************************************************/
/*                                                                            */
/*                             General Information                            */
/*                                                                            */
/******************************************************************************/

/** @name General Information 
* @{ */

	/** 
	@brief Get Voicemeeter Type
	@param pType : Pointer on 32bit long receiving the type (1 = Voicemeeter, 2= Voicemeeter Banana).

				 VOICEMEETER STRIP/BUS INDEX ASSIGNMENT

				 | Strip 1 | Strip 2 |Virtual Input|  BUS A  |  BUS B  |
				 +---------+---------+-------------+---------+---------+
				 |    0    |    1    |      2      |    0    |    1    |

				 VOICEMEETER BANANA STRIP/BUS INDEX ASSIGNMENT

				 | Strip 1 | Strip 2 | Strip 2 |Virtual Input|Virtual AUX|BUS A1|BUS A2|BUS A3|BUS B1|BUS B2|
				 +---------+---------+---------+-------------+-----------+------+------+------+------+------+
				 |    0    |    1    |    2    |       3     |     4     |   0  |   1  |   2  |   3  |   4  |



	@return :	 0: OK (no error).
				-1: cannot get client (unexpected)
				-2: no server.
	*/

long __stdcall VBVMR_GetVoicemeeterType(long * pType);

	/** 
	@brief Get Voicemeeter Version
	@param pType : Pointer on 32bit integer receiving the version (v1.v2.v3.v4)
						v1 = (version & 0xFF000000)>>24;
						v2 = (version & 0x00FF0000)>>16;
						v3 = (version & 0x0000FF00)>>8;
						v4 = version & 0x000000FF;

	@return :	 0: OK (no error).
				-1: cannot get client (unexpected)
				-2: no server.
	*/

long __stdcall VBVMR_GetVoicemeeterVersion(long * pVersion);


/** @}  */


















/******************************************************************************/
/*                                                                            */
/*                               Get parameters                               */
/*                                                                            */
/******************************************************************************/

/** @name Getting Parameters
* @{ */

	/** 
	@brief  Check if parameters have changed.
			Call this function periodically (typically every 10 or 20ms).
			(this function must be called from one thread only)
					
	@return:	 0: no new paramters.
				 1: New parameters -> update your display.
				-1: error (unexpected)
				-2: no server.
	*/

long __stdcall VBVMR_IsParametersDirty(void);

	/** 
	@brief get parameter value.
	@param szParamName : Null Terminal ASCII String giving the name of the parameter (see parameters name table)
	@param pValue : Pointer on float (32bit float by reference) receiving the wanted value.
	@return :	 0: OK (no error).
				-1: error
				-2: no server.
				-3: unknown parameter
				-5: structure mismatch
	*/

long __stdcall VBVMR_GetParameterFloat(char * szParamName, float * pValue);

	/** 
	@brief get parameter value.
	@param szParamName : Null Terminal ASCII String giving the name of the parameter (see parameters name table)
	@param pValue : Pointer on String (512 char or wchar) receiving the wanted value.
	@return :	 0: OK (no error).
				-1: error
				-2: no server.
				-3: unknown parameter
				-5: structure mismatch
	*/

long __stdcall VBVMR_GetParameterStringA(char * szParamName, char * szString);
long __stdcall VBVMR_GetParameterStringW(char * szParamName, unsigned short * wszString);

/** @}  */









/******************************************************************************/
/*                                                                            */
/*                                Get levels                                  */
/*                                                                            */
/******************************************************************************/

/** @name Getting RT Data
* @{ */

	/** 
	@brief Get Current levels.
			(this function must be called from one thread only)

	@param nType:	0= pre fader input levels.
					1= post fader input levels.
					2= post Mute input levels.
					3= output levels.

	@param nuChannel: audio channel zero based index 
						for input 0 = in#1 left, 1= in#1 Right, etc...
						for output 0 = busA ch1, 1 = busA ch2...

					 VOICEMEETER CHANNEL ASSIGNMENT

					 | Strip 1 | Strip 2 |             Virtual Input             |
					 +----+----+----+----+----+----+----+----+----+----+----+----+
					 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 |

					 |             Output A1 / A2            |             Virtual Output            |
					 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
					 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |

					 VOICEMEETER BANANA CHANNEL ASSIGNMENT

					 | Strip 1 | Strip 2 | Strip 3 |             Virtual Input             |            Virtual Input AUX          |
					 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
					 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |

					 |             Output A1                 |                Output A2              |                Output A3              |
					 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
					 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |

					 |            Virtual Output B1          |             Virtual Output B2         |
					 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
					 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |


	@return :	 0: OK (no error).
				-1: error
				-2: no server.
				-3: no level available
				-4: out of range
	*/

long __stdcall VBVMR_GetLevel(long nType, long nuChannel, float * pValue);


	/** 
	@brief Get MIDI message from M.I.D.I. input device used by Voicemeeter M.I.D.I. mapping.
			(this function must be called from one thread only)

	@param pMIDIBuffer:	pointer on MIDI Buffer. Expected message size is below 4 bytes, 
	                    but it's recommended to use 1024 Bytes local buffer to receive 
						possible multiple M.I.D.I. event message in optimal way: 
						unsigned char pBuffer[1024];


	@return :	>0: number of bytes placed in buffer (2 or 3 byte for usual M.I.D.I. message) 
				-1: error
				-2: no server.
				-5: no MIDI data
				-6: no MIDI data
	*/


long __stdcall VBVMR_GetMidiMessage(unsigned char *pMIDIBuffer, long nbByteMax);


/** @}  */










/******************************************************************************/
/*                                                                            */
/*                               Set Parameters                               */
/*                                                                            */
/******************************************************************************/

/** @name Setting Parameters
* @{ */

	/** 
	@brief Set a single float 32 bits parameters .
	@param szParamName : Null Terminal ASCII String giving the name of the parameter (see parameters name table)
						example:
						Strip[1].gain
						Strip[0].mute
						Bus[0].gain
						Bus[0].eq.channel[0].cell[0].gain

	@param pValue : float 32bit containing the new value.
	@return :	 0: OK (no error).
				-1: error
				-2: no server.
				-3: unknown parameter
	*/

long __stdcall VBVMR_SetParameterFloat(char * szParamName, float Value);



	/** 
	@brief Set a single string parameters .
	@param szParamName : Null Terminal ASCII String giving the name of the parameter (see parameters name table)
						example:
						Strip[1].name
						Strip[0].device.mme
						Bus[0].device.asio

	@param szString : zero terminal string.
	@return :	 0: OK (no error).
				-1: error
				-2: no server.
				-3: unknown parameter
	
	*/


long __stdcall VBVMR_SetParameterStringA(char * szParamName, char * szString);
long __stdcall VBVMR_SetParameterStringW(char * szParamName, unsigned short * wszString);




	/** 
	@brief Set one or several parameters by a script ( < 48 kB ).
	@param szParamName : Null Terminal ASCII String giving the script 
						 (script allows to change several parameters in the same time - SYNCHRO).
						 Possible Instuction separators: ',' ';' or '\n'(CR)
						 EXAMPLE:
						 "Strip[0].gain = -6.0
						 Strip[0].A1 = 0
						 Strip[0].B1 = 1
						 Strip[1].gain = -6.0
						 Strip[2].gain = 0.0
						 Strip[3].name = "Skype Caller" "

	@return :	 0: OK (no error).
				>0: number of line causing script error.
				-1: error
				-2: no server.
				-3: unexpected error
				-4: unexpected error
	*/

long __stdcall VBVMR_SetParameters(char * szParamScript);
long __stdcall VBVMR_SetParametersW(unsigned short * szParamScript);


/** @}  */











/******************************************************************************/
/*                            DEVICES ENUMERATOR                              */
/******************************************************************************/


/** @name Device Enumeration Functions
* @{ */

#define VBVMR_DEVTYPE_MME		1
#define VBVMR_DEVTYPE_WDM		3
#define VBVMR_DEVTYPE_KS		4
#define VBVMR_DEVTYPE_ASIO		5

	/** 
	@brief Get number of Audio Output Device available on the system
	@return : return number of device found.
	*/

long __stdcall VBVMR_Output_GetDeviceNumber(void);

	/** 
	@brief Return pointer on Output Device Descriptor according index
	@param zindex : zero based index
	@param nType : Pointer on 32bit long receiving the type (pointer can be NULL).
	@param szName : Pointer on string (256 char min) receiving the device name (pointer can be NULL).
	@param szHardwareId : Pointer on string (256 char min) receiving the hardware ID (pointer can be NULL).
	@return :	 0: OK (no error).
	*/

long __stdcall VBVMR_Output_GetDeviceDescA(long zindex, long * nType, char * szDeviceName, char * szHardwareId);
long __stdcall VBVMR_Output_GetDeviceDescW(long zindex, long * nType, unsigned short * wszDeviceName, unsigned short * wszHardwareId);

	/** 
	@brief Get number of Audio Input Device available on the system
	@return : return number of device found.
	*/

long __stdcall VBVMR_Input_GetDeviceNumber(void);

	/** 
	@brief Return pointer on Input Device Descriptor according index
	@param zindex : zero based index
	@param nType : Pointer on 32bit long receiving the type (pointer can be NULL).
	@param szName : Pointer on string (256 char min) receiving the device name (pointer can be NULL).
	@param szHardwareId : Pointer on string (256 char min) receiving the hardware ID (pointer can be NULL).
	@return :	 0: OK (no error).
	*/

long __stdcall VBVMR_Input_GetDeviceDescA(long zindex, long * nType, char * szDeviceName, char * szHardwareId);
long __stdcall VBVMR_Input_GetDeviceDescW(long zindex, long * nType, unsigned short * wszDeviceName, unsigned short * wszHardwareId);



/** @}  */






/******************************************************************************/
/*                             VB-AUDIO CALLBACK                              */
/******************************************************************************/
/* 4x Functions to process all voicemeeter audio input and output channels    */
/*                                                                            */
/* VBVMR_AudioCallbackRegister	 :to register your audio callback(s)          */
/* VBVMR_AudioCallbackStart	     :to start the audio stream                   */
/* VBVMR_AudioCallbackStop    	 :to stop the audio stream                    */
/* VBVMR_AudioCallbackUnregister :to unregister / Release callback(s)         */
/******************************************************************************/

/** @name VB-Audio Callback Functions
* @{ */


typedef struct tagVBVMR_AUDIOINFO
{
	long samplerate;
	long nbSamplePerFrame;
} VBVMR_T_AUDIOINFO, *VBVMR_PT_AUDIOINFO, *VBVMR_LPT_AUDIOINFO;


typedef struct tagVBVMR_AUDIOBUFFER
{
	long audiobuffer_sr;					//Sampling Rate
	long audiobuffer_nbs;					//number of sample per frame
	long audiobuffer_nbi;					//number of inputs
	long audiobuffer_nbo;					//number of outputs
	float * audiobuffer_r[128];				//nbi input pointers containing frame of nbs sample (of 32bits float)
	float * audiobuffer_w[128];				//nbo output pointers containing frame of nbs sample (of 32bits float)
} VBVMR_T_AUDIOBUFFER, *VBVMR_PT_AUDIOBUFFER, *VBVMR_LPT_AUDIOBUFFER;


	/** 
	@brief VB-AUDIO Callback is called for different task to Initialize, perform and end your process.
	       VB-AUDIO Callback is part of single TIME CRITICAL Thread. 
	       VB-AUDIO Callback is non re-entrant (cannot be called while in process)
	       VB-AUDIO Callback is supposed to be REAL TIME when called to process buffer.
		   (it means that the process has to be performed as fast as possible, waiting cycles are forbidden.
		   do not use O/S synchronization object, even Critical_Section can generate waiting cycle. Do not use 
		   system functions that can generate waiting cycle like display, disk or communication functions for example).
		   
	@param lpUser: User pointer given on callback registration.
	@param ncommand: reason why the callback is called.
	@param lpData: pointer on structure, pending on nCommand.
	@param nnn: additional data, unused

	@return :	 0: always 0 (unused).
	*/


typedef long (__stdcall *T_VBVMR_VBAUDIOCALLBACK)(void * lpUser, long nCommand, void * lpData, long nnn);


#define  VBVMR_CBCOMMAND_STARTING		1	//command to initialize data according SR and buffer size
											//info = (VBVMR_LPT_AUDIOINFO)lpData 

#define  VBVMR_CBCOMMAND_ENDING			2	//command to release data
#define  VBVMR_CBCOMMAND_CHANGE			3	//If change in audio stream, you will have to restart audio 

#define  VBVMR_CBCOMMAND_BUFFER_IN		10	//input insert
#define  VBVMR_CBCOMMAND_BUFFER_OUT		11  //bus output insert
#define  VBVMR_CBCOMMAND_BUFFER_MAIN	20  //all i/o 
											//audiobuffer = (VBVMR_LPT_AUDIOBUFFER)lpData 
											//nnn = synchro = 1 if synchro with Voicemeeter
											
/*                   
 -----------------------------------------------------
    AUDIO BUFFER for VBVMR_CBCOMMAND_BUFFER_IN
 -----------------------------------------------------
		VOICEMEETER 

		 | Strip 1 | Strip 2 |             Virtual Input             |
		 +----+----+----+----+----+----+----+----+----+----+----+----+
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 |

		VOICEMEETER BANANA 

		 | Strip 1 | Strip 2 | Strip 3 |             Virtual Input             |            Virtual Input AUX          |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |

		VOICEMEETER 8 

		 | Strip 1 | Strip 2 | Strip 3 | Strip 4 | Strip 5 |             Virtual Input             |            Virtual Input AUX          |             Virtual Input 8           |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 |


-----------------------------------------------------
     AUDIO BUFFER for VBVMR_CBCOMMAND_BUFFER_OUT
-----------------------------------------------------
		 VOICEMEETER 

		 |             Output A1 / A2            |             Virtual Output            |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |

		 VOICEMEETER BANANA 

		 |             Output A1                 |                Output A2              |                Output A3              |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |

		 |            Virtual Output B1          |             Virtual Output B2         |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |


		VOICEMEETER 8 

		 |             Output A1                 |                Output A2              |                Output A3              |                Output A4              |                Output A5              |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |

		 |            Virtual Output B1          |             Virtual Output B2         |             Virtual Output B3         |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 |


-----------------------------------------------------
      AUDIO BUFFER for VBVMR_CBCOMMAND_BUFFER_MAIN
-----------------------------------------------------
		 VOICEMEETER 

		 | Strip 1 | Strip 2 |             Virtual Input             |
		 +----+----+----+----+----+----+----+----+----+----+----+----+
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 |

		 |             Output A1 / A2            |             Virtual Output            |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
		 Output buffer provides outputs only:
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |

		 VOICEMEETER BANANA

		 | Strip 1 | Strip 2 | Strip 3 |             Virtual Input             |            Virtual Input AUX          |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |

		 |             Output A1                 |                Output A2              |                Output A3              |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 |
		 Output buffer provides outputs only:
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |

		 |            Virtual Output B1          |             Virtual Output B2         |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 |
		 Output buffer provides outputs only:
		 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |


		VOICEMEETER 8 

		 | Strip 1 | Strip 2 | Strip 3 | Strip 4 | Strip 5 |             Virtual Input             |            Virtual Input AUX          |             Virtual Input 8           |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 |

		 |             Output A1                 |                Output A2              |                Output A3              |                Output A4              |                Output A5              |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 |
		 Output buffer provides outputs only:
		 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |

		 |            Virtual Output B1          |             Virtual Output B2         |             Virtual Output B3         |
		 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
		 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 |
		 Output buffer provides outputs only:
		 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 |


*/

	/** 
	@brief register your audio callback function to receive real time audio buffer
			it's possible to register up to 3x different Audio Callback in the same application or in 
			3x different applications. In the same application, this is possible because Voicemeeter
			provides 3 kind of audio Streams:
				- AUDIO INPUT INSERT (to process all Voicemeeter inputs as insert)	
				- AUDIO OUTPUT INSERT (to process all Voicemeeter BUS outputs as insert)	
				- ALL AUDIO I/O (to process all Voicemeeter i/o).
			Note: a single callback can be used to receive the 3 possible audio streams.

	@param mode : callback type (main, input or bus output) see define below
	@param pCallback : Pointer on your callback function.
	@param lpUser : user pointer (pointer that will be passed in callback first argument).
	@param szClientName[64]: IN: Name of the application registering the Callback.
							 OUT: Name of the application already registered.
	@return :	 0: OK (no error).
				-1: error
				 1: callback already registered (by another application).
	*/

long __stdcall VBVMR_AudioCallbackRegister(long mode, T_VBVMR_VBAUDIOCALLBACK pCallback, void * lpUser, char szClientName[64]);

#define VBVMR_AUDIOCALLBACK_IN		0x00000001	//to process input insert
#define VBVMR_AUDIOCALLBACK_OUT		0x00000002  //to process output bus insert
#define VBVMR_AUDIOCALLBACK_MAIN	0x00000004  //to receive all i/o

	/** 
	@brief	Start / Stop Audio processing 
			
			he Callback will be called with 
	@return :	 0: OK (no error).
				-1: error
				-2: no callback registred.
	*/

long __stdcall VBVMR_AudioCallbackStart(void);
long __stdcall VBVMR_AudioCallbackStop(void);


	/** 
	@brief unregister your callback to release voicemeeter virtual driver
			(this function will automatically call VBVMR_AudioCallbackStop() function)
	@param pCallback : Pointer on your callback function.
	@return :	 0: OK (no error).
				-1: error
				 1: callback already unregistered.
	*/

long __stdcall VBVMR_AudioCallbackUnregister(void);



/** @}  */












/******************************************************************************/
/*                          'C' STRUCTURED INTERFACE                          */
/******************************************************************************/

typedef long (__stdcall *T_VBVMR_Login)(void);
typedef long (__stdcall *T_VBVMR_Logout)(void);
typedef long (__stdcall *T_VBVMR_RunVoicemeeter)(long vType);

typedef long (__stdcall *T_VBVMR_GetVoicemeeterType)(long * pType);
typedef long (__stdcall *T_VBVMR_GetVoicemeeterVersion)(long * pVersion);

typedef long (__stdcall *T_VBVMR_IsParametersDirty)(void);
typedef long (__stdcall *T_VBVMR_GetParameterFloat)(char * szParamName, float * pValue);
typedef long (__stdcall *T_VBVMR_GetParameterStringA)(char * szParamName, char * szString);
typedef long (__stdcall *T_VBVMR_GetParameterStringW)(char * szParamName, unsigned short * wszString);


typedef long (__stdcall *T_VBVMR_GetLevel)(long nType, long nuChannel, float * pValue);
typedef long (__stdcall *T_VBVMR_GetMidiMessage)(unsigned char *pMIDIBuffer, long nbByteMax);

typedef long (__stdcall *T_VBVMR_SetParameterFloat)(char * szParamName, float Value);
typedef long (__stdcall *T_VBVMR_SetParameters)(char * szParamScript);
typedef long (__stdcall *T_VBVMR_SetParametersW)(unsigned short * szParamScript);
typedef long (__stdcall *T_VBVMR_SetParameterStringA)(char * szParamName, char * szString);
typedef long (__stdcall *T_VBVMR_SetParameterStringW)(char * szParamName, unsigned short * wszString);

typedef long (__stdcall *T_VBVMR_Output_GetDeviceNumber)(void);
typedef long (__stdcall *T_VBVMR_Output_GetDeviceDescA)(long zindex, long * nType, char * szDeviceName, char * szHardwareId);
typedef long (__stdcall *T_VBVMR_Output_GetDeviceDescW)(long zindex, long * nType, unsigned short * wszDeviceName, unsigned short * wszHardwareId);
typedef long (__stdcall *T_VBVMR_Input_GetDeviceNumber)(void);
typedef long (__stdcall *T_VBVMR_Input_GetDeviceDescA)(long zindex, long * nType, char * szDeviceName, char * szHardwareId);
typedef long (__stdcall *T_VBVMR_Input_GetDeviceDescW)(long zindex, long * nType, unsigned short * wszDeviceName, unsigned short * wszHardwareId);

typedef long (__stdcall *T_VBVMR_AudioCallbackRegister)(long mode, T_VBVMR_VBAUDIOCALLBACK pCallback, void * lpUser, char szClientName[64]);
typedef long (__stdcall *T_VBVMR_AudioCallbackStart)(void);
typedef long (__stdcall *T_VBVMR_AudioCallbackStop)(void);
typedef long (__stdcall *T_VBVMR_AudioCallbackUnregister)(void);


typedef struct tagVBVMR_INTERFACE
{
	T_VBVMR_Login					VBVMR_Login;
	T_VBVMR_Logout					VBVMR_Logout;
	T_VBVMR_RunVoicemeeter			VBVMR_RunVoicemeeter;
	T_VBVMR_GetVoicemeeterType		VBVMR_GetVoicemeeterType;
	T_VBVMR_GetVoicemeeterVersion	VBVMR_GetVoicemeeterVersion;
	T_VBVMR_IsParametersDirty		VBVMR_IsParametersDirty;
	T_VBVMR_GetParameterFloat		VBVMR_GetParameterFloat;
	T_VBVMR_GetParameterStringA		VBVMR_GetParameterStringA;
	T_VBVMR_GetParameterStringW		VBVMR_GetParameterStringW;

	T_VBVMR_GetLevel				VBVMR_GetLevel;
	T_VBVMR_GetMidiMessage			VBVMR_GetMidiMessage;

	T_VBVMR_SetParameterFloat		VBVMR_SetParameterFloat;
	T_VBVMR_SetParameters			VBVMR_SetParameters;
	T_VBVMR_SetParametersW			VBVMR_SetParametersW;
	T_VBVMR_SetParameterStringA		VBVMR_SetParameterStringA;
	T_VBVMR_SetParameterStringW		VBVMR_SetParameterStringW;

	T_VBVMR_Output_GetDeviceNumber	VBVMR_Output_GetDeviceNumber;
	T_VBVMR_Output_GetDeviceDescA	VBVMR_Output_GetDeviceDescA;
	T_VBVMR_Output_GetDeviceDescW	VBVMR_Output_GetDeviceDescW;
	T_VBVMR_Input_GetDeviceNumber	VBVMR_Input_GetDeviceNumber;
	T_VBVMR_Input_GetDeviceDescA	VBVMR_Input_GetDeviceDescA;
	T_VBVMR_Input_GetDeviceDescW	VBVMR_Input_GetDeviceDescW;

	T_VBVMR_AudioCallbackRegister	VBVMR_AudioCallbackRegister;
	T_VBVMR_AudioCallbackStart		VBVMR_AudioCallbackStart;
	T_VBVMR_AudioCallbackStop		VBVMR_AudioCallbackStop;
	T_VBVMR_AudioCallbackUnregister	VBVMR_AudioCallbackUnregister;

} T_VBVMR_INTERFACE, *PT_VBVMR_INTERFACE, *LPT_VBVMR_INTERFACE;

#ifdef VBUSE_LOCALLIB
	// internal used (not public)
	void __stdcall VBVMR_SetHinstance(HINSTANCE hinst);
#endif

#ifdef __cplusplus
}
#endif

#endif /*__VOICEMEETER_REMOTE_H__*/