127 lines
4 KiB
Text
127 lines
4 KiB
Text
VERSION 5.00
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Begin VB.Form frmLiveSpec
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BorderStyle = 3 'Fixed Dialog
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Caption = "BASS ""live"" spectrum (click to toggle mode)"
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ClientHeight = 1905
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ClientLeft = 45
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ClientTop = 330
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ClientWidth = 5520
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BeginProperty Font
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Name = "Arial"
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Size = 9.75
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Charset = 177
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Weight = 700
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Underline = 0 'False
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Italic = 0 'False
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Strikethrough = 0 'False
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EndProperty
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LinkTopic = "Form1"
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MaxButton = 0 'False
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MinButton = 0 'False
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ScaleHeight = 127
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ScaleMode = 3 'Pixel
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ScaleWidth = 368
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StartUpPosition = 2 'CenterScreen
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Begin VB.Timer tmrLiveSpec
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Enabled = 0 'False
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Interval = 25
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Left = 5040
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Top = 1440
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End
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End
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Attribute VB_Name = "frmLiveSpec"
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Attribute VB_GlobalNameSpace = False
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Attribute VB_Creatable = False
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Attribute VB_PredeclaredId = True
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Attribute VB_Exposed = False
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'/////////////////////////////////////////////////////////////////////////////////
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' frmLiveSpec.frm - Copyright (c) 2002-2007 (: JOBnik! :) [Arthur Aminov, ISRAEL]
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' [http://www.jobnik.org]
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' [ jobnik@jobnik.org ]
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' Other source: modLiveSpec.bas
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'
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' BASS "Live" spectrum analyser example
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' Originally translated from - livespec.c - Example of Ian Luck
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'/////////////////////////////////////////////////////////////////////////////////
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Option Explicit
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' display error messages
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Public Sub Error_(ByVal es As String)
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Call MsgBox(es & vbCrLf & vbCrLf & "error code: " & BASS_ErrorGetCode, vbExclamation, "Error")
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End Sub
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Private Sub Form_Load()
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' change and set the current path, to prevent from VB not finding BASS.DLL
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ChDrive App.Path
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ChDir App.Path
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' check the correct BASS was loaded
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If (HiWord(BASS_GetVersion) <> BASSVERSION) Then
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Call MsgBox("An incorrect version of BASS.DLL was loaded", vbCritical)
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End
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End If
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' initialize BASS recording (default device)
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If (BASS_RecordInit(-1) = 0) Then
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Call Error_("Can't initialize device")
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End
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End If
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' start recording (44100hz mono 16-bit)
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chan = BASS_RecordStart(44100, 1, 0, AddressOf DuffRecording, 0)
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If chan = 0 Then
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Call Error_("Can't start recording")
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End
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End If
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specpos = 0
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specmode = 0
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' create bitmap to draw spectrum in - 8 bit for easy updating :)
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With bh.bmiHeader
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.biSize = Len(bh.bmiHeader)
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.biWidth = SPECWIDTH
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.biHeight = SPECHEIGHT ' upside down (line 0=bottom)
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.biPlanes = 1
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.biBitCount = 8
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.biClrUsed = 256
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.biClrImportant = 256
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End With
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Dim a As Byte
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' setup palette
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For a = 1 To 127
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bh.bmiColors(a).rgbGreen = 256 - 2 * a
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bh.bmiColors(a).rgbRed = 2 * a
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Next a
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For a = 0 To 31
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bh.bmiColors(128 + a).rgbBlue = 8 * a
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bh.bmiColors(128 + 32 + a).rgbBlue = 255
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bh.bmiColors(128 + 32 + a).rgbRed = 8 * a
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bh.bmiColors(128 + 64 + a).rgbRed = 255
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bh.bmiColors(128 + 64 + a).rgbBlue = 8 * (31 - a)
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bh.bmiColors(128 + 64 + a).rgbGreen = 8 * a
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bh.bmiColors(128 + 96 + a).rgbRed = 255
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bh.bmiColors(128 + 96 + a).rgbGreen = 255
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bh.bmiColors(128 + 96 + a).rgbBlue = 8 * a
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Next a
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' update timer 25ms (40hz)
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tmrLiveSpec.Enabled = True
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End Sub
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Private Sub Form_Unload(Cancel As Integer)
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tmrLiveSpec.Enabled = False
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Call BASS_RecordFree
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End Sub
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Private Sub Form_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single)
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specmode = (specmode + 1) Mod 4 ' swap spectrum mode
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ReDim specbuf(SPECWIDTH * (SPECHEIGHT + 1)) As Byte ' clear display
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End Sub
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Private Sub tmrLiveSpec_Timer()
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Call UpdateSpectrum
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End Sub
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