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61 lines
3.2 KiB
61 lines
3.2 KiB
Attribute VB_Name = "ACM_Defs"
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Option Explicit
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'== ACM API Constants ================================================
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Public Const ACMERR_BASE = 512
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Public Const ACMERR_NOTPOSSIBLE = (ACMERR_BASE + 0)
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Public Const ACMERR_BUSY = (ACMERR_BASE + 1)
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Public Const ACMERR_UNPREPARED = (ACMERR_BASE + 2)
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Public Const ACMERR_CANCELED = (ACMERR_BASE + 3)
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' AcmStreamSize Flags...
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Public Const ACM_STREAMSIZEF_SOURCE = &H0&
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Public Const ACM_STREAMSIZEF_DESTINATION = &H1&
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Public Const ACM_STREAMSIZEF_QUERYMASK = &HF&
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' acmStreamConvert Flags...
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Public Const ACM_STREAMCONVERTF_BLOCKALIGN = &H4&
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Public Const ACM_STREAMCONVERTF_START = &H10&
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Public Const ACM_STREAMCONVERTF_END = &H20&
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' Done Bits For ACMSTREAMHEADER.fdwStatus
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Public Const ACMSTREAMHEADER_STATUSF_DONE = &H10000
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Public Const ACMSTREAMHEADER_STATUSF_PREPARED = &H20000
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Public Const ACMSTREAMHEADER_STATUSF_INQUEUE = &H100000
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' Done Bits For acmStreamOpen Formats
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Public Const ACM_STREAMOPENF_QUERY = &H1&
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Public Const ACM_STREAMOPENF_ASYNC = &H2&
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Public Const ACM_STREAMOPENF_NONREALTIME = &H4&
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'== ACM API Declarations ================================================
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Public Declare Function acmStreamOpen Lib "MSACM32" (hAS As Long, ByVal hADrv As Long, wfxSrc As WAVEFORMATEX, wfxDst As WAVEFORMATEX, ByVal wFltr As Long, ByVal dwCallback As Long, ByVal dwInstance As Long, ByVal fdwOpen As Long) As Long
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Public Declare Function acmStreamClose Lib "MSACM32" (ByVal hAS As Long, ByVal dwClose As Long) As Long
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Public Declare Function acmStreamPrepareHeader Lib "MSACM32" (ByVal hAS As Long, hASHdr As ACMSTREAMHEADER, ByVal dwPrepare As Long) As Long
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Public Declare Function acmStreamUnprepareHeader Lib "MSACM32" (ByVal hAS As Long, hASHdr As ACMSTREAMHEADER, ByVal dwUnPrepare As Long) As Long
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Public Declare Function acmStreamConvert Lib "MSACM32" (ByVal hAS As Long, hASHdr As ACMSTREAMHEADER, ByVal dwConvert As Long) As Long
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Public Declare Function acmStreamReset Lib "MSACM32" (ByVal hAS As Long, ByVal dwReset As Long) As Long
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Public Declare Function acmStreamSize Lib "MSACM32" (ByVal hAS As Long, ByVal cbInput As Long, dwOutBytes As Long, ByVal dwSize As Long) As Long
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'== ACM User Defined Datatypes ================================================
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Type WAVEFILTER
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cbStruct As Long
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dwFilterTag As Long
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fdwFilter As Long
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dwReserved(5) As Long
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End Type
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Type ACMSTREAMHEADER ' [ACM STREAM HEADER TYPE]
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cbStruct As Long ' Size of header in bytes
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dwStatus As Long ' Conversion status buffer
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dwUser As Long ' 32 bits of user data specified by application
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pbSrc As Long ' Source data buffer pointer
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cbSrcLength As Long ' Source data buffer size in bytes
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cbSrcLengthUsed As Long ' Source data buffer size used in bytes
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dwSrcUser As Long ' 32 bits of user data specified by application
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cbDst As Long ' Dest data buffer pointer
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cbDstLength As Long ' Dest data buffer size in bytes
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cbDstLengthUsed As Long ' Dest data buffer size used in bytes
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dwDstUser As Long ' 32 bits of user data specified by application
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dwReservedDriver(9) As Long ' Reserved and should not be used
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End Type
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