Invader писал(а):где нормальный msdn по vb.net? Уточню где описание деклараций API функций ....
Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long
Declare Function GlobalLock Lib "kernel32" (ByVal hmem As Long) As Long
Declare Function GlobalFree Lib "kernel32" (ByVal hmem As Long) As Long
Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (struct As Any, ByVal ptr As Long, ByVal cb As Long)
Declare Function waveInOpen Lib "winmm.dll" (lphWaveIn As Long, ByVal uDeviceID As Long, lpFormat As WAVEFORMAT, ByVal dwCallback As Long, ByVal dwInstance As Long, ByVal dwFlags As Long) As Long
Declare Function waveInStart Lib "winmm.dll" (ByVal hWaveIn As Long) As Long
Declare Function waveInStop Lib "winmm.dll" (ByVal hWaveIn As Long) As Long
Declare Function waveInAddBuffer Lib "winmm.dll" (ByVal hWaveIn As Long, lpWaveInHdr As WAVEHDR, ByVal uSize As Long) As Long
Declare Function waveInReset Lib "winmm.dll" (ByVal hWaveIn As Long) As Long
Declare Function waveInPrepareHeader Lib "winmm.dll" (ByVal hWaveIn As Long, lpWaveInHdr As WAVEHDR, ByVal uSize As Long) As Long
Declare Function waveInGetErrorText Lib "winmm.dll" Alias "waveInGetErrorTextA" (ByVal err As Long, ByVal lpText As String, ByVal uSize As Long) As Long
Declare Function waveInClose Lib "winmm.dll" (ByVal hWaveIn As Long) As Long
Declare Function waveInUnprepareHeader Lib "winmm.dll" (ByVal hWaveIn As Long, lpWaveInHdr As WAVEHDR, ByVal uSize As Long) As Long
<DllImport("kernel32.dll", CharSet:=CharSet.Auto, ExactSpelling:=True)> _
Public Function GlobalLock(ByVal handle As IntPtr) As IntPtr
End Function
CharSet:=CharSet.Auto, ExactSpelling:=True
Qwertiy писал(а):1. Надо не забывать менять Long на Integer.
2. В VB6 по умолчанию ByRef, которое может не стоять в описании (по крайней мере, API Text Viewer не ставит). Надо скопировать в блокнотик, там подписать ByRef, где надо, затем вставить в VS и выполнить пункут 1.
Собственно, всё. После этого функции должны стать рабочими Если конечно в описании нет As Any... В последнем случае надо смотреть по ситуации.
Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (ByRef struct As IntPtr, ByVal ptr As Integer, ByVal cb As Integer)
Sub DrawSpectrum()
'Dim Volume As Double
'Dim curSample As Long
Dim curSample As integer,
Dim f, kk
N = 2048
For curSample = 0 To 2047
GetMono16Sample(curSample, Volume)
REX(curSample) = Volume
'TextBox1.Text = Volume
IMX(curSample) = 0
Next
.........
Sub GetMono16Sample(ByVal sample As Integer, ByRef leftVol As Double)
Dim sample16 As Integer
Dim ptr As Integer
ptr = sample * format.nBlockAlign + inHdr.lpData
CopyStructFromPtr(sample16, ptr, 2)
leftVol = sample16 / 32768
End Sub
Invader писал(а):эти моментыя вообще не понимаю, как то раньше без них замечательно писал и всё работало
- Код: Выделить всё
CharSet:=CharSet.Auto, ExactSpelling:=True
Invader писал(а):я записал как
- Код: Выделить всё
Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (ByRef struct As IntPtr, ByVal ptr As Integer, ByVal cb As Integer)
Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" ( <MarshalAs(UnmanagedType.AsAny)> ByRef struct as Object, ByVal ptr As Integer, ByVal cb As Integer)
Invader писал(а):Надо скопировать в блокнотик, там подписать ByRef, где надо -Непонятно уточните
FireFenix писал(а):Для работы с неуправляемой памятью, есть класс Mrashal
Invader писал(а):я уже записывал
- Код: Выделить всё
Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" ( <MarshalAs(UnmanagedType.AsAny)> ByRef struct as Object, ByVal ptr As Integer, ByVal cb As Integer)
Viper писал(а):Порекламирую свою статью очередной раз. Здесь в том числе и о работе с классом Marshal, и про атрибуты MarshalAs и еще много полезного.
Qwertiy писал(а):У меня VB6 падает при попытке открыть проект...
Option Explicit On
Module Module1
Public Const WHDR_DONE = &H1 ' done bit
Structure WAVEHDR
Dim lpData As Integer
Dim dwBufferLength As Integer
Dim dwBytesRecorded As Integer
Dim dwUser As Integer
Dim dwFlags As Integer
Dim dwLoops As Integer
Dim lpNext As Integer
Dim Reserved As Integer
End Structure
Structure WAVEFORMAT
Dim wFormatTag As Short
Dim nChannels As Short
Dim nSamplesPerSec As Integer
Dim nAvgBytesPerSec As Integer
Dim nBlockAlign As Short
Dim wBitsPerSample As Short
Dim cbSize As Short
End Structure
Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Integer, ByVal dwBytes As Integer) As Integer
Declare Function GlobalLock Lib "kernel32" (ByVal hmem As Integer) As Integer
Declare Function GlobalFree Lib "kernel32" (ByVal hmem As Integer) As Integer
'Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (ByRef struct As Any, ByVal ptr As Integer, ByVal cb As Integer)
Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (ByRef struct As Short, ByVal ptr As Integer, ByVal cb As Integer)
Declare Function waveInOpen Lib "winmm.dll" (ByRef lphWaveIn As Integer, ByVal uDeviceID As Integer, ByRef lpFormat As WAVEFORMAT, ByVal dwCallback As Integer, ByVal dwInstance As Integer, ByVal dwFlags As Integer) As Integer
Declare Function waveInStart Lib "winmm.dll" (ByVal hWaveIn As Integer) As Integer
Declare Function waveInStop Lib "winmm.dll" (ByVal hWaveIn As Integer) As Integer
Declare Function waveInAddBuffer Lib "winmm.dll" (ByVal hWaveIn As Integer, ByRef lpWaveInHdr As WAVEHDR, ByVal uSize As Integer) As Integer
Declare Function waveInReset Lib "winmm.dll" (ByVal hWaveIn As Integer) As Integer
Declare Function waveInPrepareHeader Lib "winmm.dll" (ByVal hWaveIn As Integer, ByRef lpWaveInHdr As WAVEHDR, ByVal uSize As Integer) As Integer
Declare Function waveInGetErrorText Lib "winmm.dll" Alias "waveInGetErrorTextA" (ByVal err As Integer, ByVal lpText As String, ByVal uSize As Integer) As Integer
Declare Function waveInClose Lib "winmm.dll" (ByVal hWaveIn As Integer) As Integer
Declare Function waveInUnprepareHeader Lib "winmm.dll" (ByVal hWaveIn As Integer, ByRef lpWaveInHdr As WAVEHDR, ByVal uSize As Integer) As Integer
Public i As Short, j As Short, rc As Integer, msg As String = Space$(200), hWaveIn As Integer
Public format As WAVEFORMAT
Public hmem As Integer
Public inHdr As WAVEHDR
Public Const DEVICEID = 0
Public fRecording As Boolean
Public BUFFER_SIZE As Short
'When the number of FFT points is < 512 and samplerates
'are < 22050 are used the program has to wait for input.
'A circular buffer of sufficient size may be of value
'but I don't know how to implement it.
Function StartInput() As Boolean
If fRecording Then
StartInput = True
Exit Function
End If
format.wFormatTag = 1
format.nChannels = 1
format.wBitsPerSample = 16
format.nSamplesPerSec = 48000 'Gets the sample rate from the main form
format.nBlockAlign = format.nChannels * format.wBitsPerSample / 8
format.nAvgBytesPerSec = format.nSamplesPerSec * format.nBlockAlign
format.cbSize = 0
hmem = GlobalAlloc(&H40, BUFFER_SIZE)
inHdr.lpData = GlobalLock(hmem)
inHdr.dwBufferLength = BUFFER_SIZE
inHdr.dwFlags = 0
inHdr.dwLoops = 0
rc = waveInOpen(hWaveIn, DEVICEID, format, 0, 0, 0)
If rc <> 0 Then
waveInGetErrorText(rc, msg, Len(msg))
MsgBox(msg)
StartInput = False
Exit Function
End If
rc = waveInPrepareHeader(hWaveIn, inHdr, Len(inHdr))
If (rc <> 0) Then
waveInGetErrorText(rc, msg, Len(msg))
MsgBox(msg)
End If
rc = waveInAddBuffer(hWaveIn, inHdr, Len(inHdr))
If (rc <> 0) Then
waveInGetErrorText(rc, msg, Len(msg))
MsgBox(msg)
End If
fRecording = True
rc = waveInStart(hWaveIn)
StartInput = True
End Function
' Stop receiving audio input on the soundcard
Sub StopInput()
fRecording = False
waveInReset(hWaveIn)
waveInStop(hWaveIn)
waveInUnprepareHeader(hWaveIn, inHdr, Len(inHdr))
GlobalFree(hmem)
waveInClose(hWaveIn)
End Sub
Sub GetMono16Sample(ByVal sample As Integer, ByRef leftVol As Double)
Dim sample16 As Short
Dim ptr As Integer
ptr = sample * format.nBlockAlign + inHdr.lpData
CopyStructFromPtr(sample16, ptr, 2)
leftVol = sample16 / 32768
End Sub
'The following code may be from the original program author
'but it appears to be a relatively generic adaptation.
'This routine imposes a speed bottleneck when the number
'of FFT points is > 512.
'THE FAST FOURIER TRANSFORM
'Upon entry, N% contains the number of points in the DFT,
'REX[ ] and IMX[ ] contain the real and imaginary parts of the input.
'Upon return, REX[ ] and IMX[ ] contain the DFT output.
'All signals run from 0 to N-1.
Sub FFT(ByVal N As Short, ByVal REX() As Double, ByVal IMX() As Double)
Const Pi = 3.14159
Dim NM1 As Short
Dim ND2 As Short
Dim M As Short
Dim j As Short
Dim K As Short
Dim L As Short
Dim LE As Short
Dim LE2 As Short
Dim JM1 As Short
Dim i As Short
Dim IP As Short
Dim TR As Double
Dim TI As Double
Dim UR As Double
Dim UI As Double
Dim SR As Double
Dim SI As Double
NM1 = N - 1
ND2 = N / 2
M = CInt(Math.Log(N) / Math.Log(2))
j = ND2
For i = 1 To N - 2 'Bit reversal sorting
If i >= j Then GoTo S1
TR = REX(j)
TI = IMX(j)
REX(j) = REX(i)
IMX(j) = IMX(i)
REX(i) = TR
IMX(i) = TI
S1: K = ND2
S2: If K > j Then GoTo s3
j = j - K
K = K / 2
GoTo S2
s3: j = j + K
Next
For L = 1 To M 'Loop for each stage
LE = CInt(2 ^ L)
LE2 = LE / 2
UR = 1
UI = 0
SR = Math.Cos(Pi / LE2) 'Calculate sine & cosine values
SI = -Math.Sin(Pi / LE2)
For j = 1 To LE2 'Loop for each sub DFT
JM1 = j - 1
For i = JM1 To NM1 Step LE 'Loop for each butterfly
IP = i + LE2
TR = REX(IP) * UR - IMX(IP) * UI 'Butterfly calculation
TI = REX(IP) * UI + IMX(IP) * UR
REX(IP) = REX(i) - TR
IMX(IP) = IMX(i) - TI
REX(i) = REX(i) + TR
IMX(i) = IMX(i) + TI
Next
TR = UR
UR = TR * SR - UI * SI
UI = TR * SI + UI * SR
Next
Next
End Sub
End Module
Option Explicit On
Public Class Form1
Const contrast = 6
Const gain = 6
Const SampleRate = 48000
Const bins = 2048
Dim N As Short 'Number of points in the DFT,
Dim REX() As Double 'Real part of input
Dim IMX() As Double 'Imaginary part of input
Dim ln As Single 'Vertical line # in Waterfall
Dim Volume As Double
Dim curSample As Integer
Dim brightness As Short
Dim scet As Integer
Dim fError As Boolean
Private Sub Command1_Click() Handles Command1.Click
Command1.Enabled = True
Command2.Enabled = False
End Sub
Private Sub Command2_Click() Handles Command2.Click
Command1.Enabled = False
Command2.Enabled = True
End Sub
Private Sub Form_Activate() Handles MyBase.Activated
N = 2048 'Number of samples must be 2^k where k = integer > 1
BUFFER_SIZE = 4096 'Must be at least 2 * max number of bins
ReDim REX(N - 1)
ReDim IMX(N - 1)
CmdSwitch.Text = "Start"
lblBrightness.Text = "Brightness " + Str(scrBrightness.Value)
brightness = scrBrightness.Value
ln = 0 'Waterfall must start at line 0
Timer1.Interval = 1
Timer1.Enabled = True
End Sub
Private Sub CmdSwitch_Click() Handles CmdSwitch.Click
If CmdSwitch.Text = "Start" Then
CmdSwitch.Text = "Freeze"
StartInput()
Else
CmdSwitch.Text = "Start"
StopInput()
End If
End Sub
Private Sub scrBrightness_Change() Handles scrBrightness.ValueChanged
lblBrightness.Text = "Brightness " + Str(scrBrightness.Value)
brightness = scrBrightness.Value
End Sub
Private Sub Timer1_Timer() Handles Timer1.Tick ' Process sound buffer if recording
If (fRecording) Then
If inHdr.dwFlags And WHDR_DONE Then
rc = waveInAddBuffer(hWaveIn, inHdr, Len(inHdr))
DrawSpectrum()
End If
End If
End Sub
Private Sub Form_QueryUnload() Handles MyBase.FormClosing
If (fRecording) Then
StopInput()
End If
End Sub
Sub DrawSpectrum()
'Dim Volume As Double
'Dim curSample As Long
Dim f As Integer, kk As Integer
N = 2048
For curSample = 0 To 2047
GetMono16Sample(curSample, Volume)
REX(curSample) = Volume
IMX(curSample) = 0
Next
FFT(N, REX, IMX)
For f = 0 To 1024
kk = Math.Sqrt(REX(f) ^ 2) * Int((brightness * 100))
If kk < 1 Then
kk = 1
End If
kk = gain * Math.Log(kk)
Text1.Text = CStr(kk)
Next
If kk > 16 Then 'StopInput
scet = scet + 1
Command1_Click()
Command1.Text = CStr(scet)
'Else
'Command2_Click
End If
End Sub
End Class
Qwertiy писал(а):Я не понимаю, что ты хочешь. Я думал, переделать VB6 на VB.NET.
Qwertiy писал(а):Ты мой код смотрел?
Invader писал(а):Qwertiy писал(а):Ты мой код смотрел?
где ты отобразил код на vb6?
а у меня конвертируется в VB.NET с ошибкамиQwertiy писал(а):Я без понятия, что этот код делает и разбираться не хочу.
Попробуй что-нибудь типа:
- Код: Выделить всё
Option Explicit On
Module Module1
Public Const WHDR_DONE = &H1 ' done bit
Structure WAVEHDR
Dim lpData As Integer
Dim dwBufferLength As Integer
Dim dwBytesRecorded As Integer
Dim dwUser As Integer
Dim dwFlags As Integer
Dim dwLoops As Integer
Dim lpNext As Integer
Dim Reserved As Integer
End Structure
Structure WAVEFORMAT
Dim wFormatTag As Short
Dim nChannels As Short
Dim nSamplesPerSec As Integer
Dim nAvgBytesPerSec As Integer
Dim nBlockAlign As Short
Dim wBitsPerSample As Short
Dim cbSize As Short
End Structure
Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Integer, ByVal dwBytes As Integer) As Integer
Declare Function GlobalLock Lib "kernel32" (ByVal hmem As Integer) As Integer
Declare Function GlobalFree Lib "kernel32" (ByVal hmem As Integer) As Integer
'Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (ByRef struct As Any, ByVal ptr As Integer, ByVal cb As Integer)
Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (ByRef struct As Short, ByVal ptr As Integer, ByVal cb As Integer)
Declare Function waveInOpen Lib "winmm.dll" (ByRef lphWaveIn As Integer, ByVal uDeviceID As Integer, ByRef lpFormat As WAVEFORMAT, ByVal dwCallback As Integer, ByVal dwInstance As Integer, ByVal dwFlags As Integer) As Integer
Declare Function waveInStart Lib "winmm.dll" (ByVal hWaveIn As Integer) As Integer
Declare Function waveInStop Lib "winmm.dll" (ByVal hWaveIn As Integer) As Integer
Declare Function waveInAddBuffer Lib "winmm.dll" (ByVal hWaveIn As Integer, ByRef lpWaveInHdr As WAVEHDR, ByVal uSize As Integer) As Integer
Declare Function waveInReset Lib "winmm.dll" (ByVal hWaveIn As Integer) As Integer
Declare Function waveInPrepareHeader Lib "winmm.dll" (ByVal hWaveIn As Integer, ByRef lpWaveInHdr As WAVEHDR, ByVal uSize As Integer) As Integer
Declare Function waveInGetErrorText Lib "winmm.dll" Alias "waveInGetErrorTextA" (ByVal err As Integer, ByVal lpText As String, ByVal uSize As Integer) As Integer
Declare Function waveInClose Lib "winmm.dll" (ByVal hWaveIn As Integer) As Integer
Declare Function waveInUnprepareHeader Lib "winmm.dll" (ByVal hWaveIn As Integer, ByRef lpWaveInHdr As WAVEHDR, ByVal uSize As Integer) As Integer
Public i As Short, j As Short, rc As Integer, msg As String = Space$(200), hWaveIn As Integer
Public format As WAVEFORMAT
Public hmem As Integer
Public inHdr As WAVEHDR
Public Const DEVICEID = 0
Public fRecording As Boolean
Public BUFFER_SIZE As Short
'When the number of FFT points is < 512 and samplerates
'are < 22050 are used the program has to wait for input.
'A circular buffer of sufficient size may be of value
'but I don't know how to implement it.
Function StartInput() As Boolean
If fRecording Then
StartInput = True
Exit Function
End If
format.wFormatTag = 1
format.nChannels = 1
format.wBitsPerSample = 16
format.nSamplesPerSec = 48000 'Gets the sample rate from the main form
format.nBlockAlign = format.nChannels * format.wBitsPerSample / 8
format.nAvgBytesPerSec = format.nSamplesPerSec * format.nBlockAlign
format.cbSize = 0
hmem = GlobalAlloc(&H40, BUFFER_SIZE)
inHdr.lpData = GlobalLock(hmem)
inHdr.dwBufferLength = BUFFER_SIZE
inHdr.dwFlags = 0
inHdr.dwLoops = 0
rc = waveInOpen(hWaveIn, DEVICEID, format, 0, 0, 0)
If rc <> 0 Then
waveInGetErrorText(rc, msg, Len(msg))
MsgBox(msg)
StartInput = False
Exit Function
End If
rc = waveInPrepareHeader(hWaveIn, inHdr, Len(inHdr))
If (rc <> 0) Then
waveInGetErrorText(rc, msg, Len(msg))
MsgBox(msg)
End If
rc = waveInAddBuffer(hWaveIn, inHdr, Len(inHdr))
If (rc <> 0) Then
waveInGetErrorText(rc, msg, Len(msg))
MsgBox(msg)
End If
fRecording = True
rc = waveInStart(hWaveIn)
StartInput = True
End Function
' Stop receiving audio input on the soundcard
Sub StopInput()
fRecording = False
waveInReset(hWaveIn)
waveInStop(hWaveIn)
waveInUnprepareHeader(hWaveIn, inHdr, Len(inHdr))
GlobalFree(hmem)
waveInClose(hWaveIn)
End Sub
Sub GetMono16Sample(ByVal sample As Integer, ByRef leftVol As Double)
Dim sample16 As Short
Dim ptr As Integer
ptr = sample * format.nBlockAlign + inHdr.lpData
CopyStructFromPtr(sample16, ptr, 2)
leftVol = sample16 / 32768
End Sub
'The following code may be from the original program author
'but it appears to be a relatively generic adaptation.
'This routine imposes a speed bottleneck when the number
'of FFT points is > 512.
'THE FAST FOURIER TRANSFORM
'Upon entry, N% contains the number of points in the DFT,
'REX[ ] and IMX[ ] contain the real and imaginary parts of the input.
'Upon return, REX[ ] and IMX[ ] contain the DFT output.
'All signals run from 0 to N-1.
Sub FFT(ByVal N As Short, ByVal REX() As Double, ByVal IMX() As Double)
Const Pi = 3.14159
Dim NM1 As Short
Dim ND2 As Short
Dim M As Short
Dim j As Short
Dim K As Short
Dim L As Short
Dim LE As Short
Dim LE2 As Short
Dim JM1 As Short
Dim i As Short
Dim IP As Short
Dim TR As Double
Dim TI As Double
Dim UR As Double
Dim UI As Double
Dim SR As Double
Dim SI As Double
NM1 = N - 1
ND2 = N / 2
M = CInt(Math.Log(N) / Math.Log(2))
j = ND2
For i = 1 To N - 2 'Bit reversal sorting
If i >= j Then GoTo S1
TR = REX(j)
TI = IMX(j)
REX(j) = REX(i)
IMX(j) = IMX(i)
REX(i) = TR
IMX(i) = TI
S1: K = ND2
S2: If K > j Then GoTo s3
j = j - K
K = K / 2
GoTo S2
s3: j = j + K
Next
For L = 1 To M 'Loop for each stage
LE = CInt(2 ^ L)
LE2 = LE / 2
UR = 1
UI = 0
SR = Math.Cos(Pi / LE2) 'Calculate sine & cosine values
SI = -Math.Sin(Pi / LE2)
For j = 1 To LE2 'Loop for each sub DFT
JM1 = j - 1
For i = JM1 To NM1 Step LE 'Loop for each butterfly
IP = i + LE2
TR = REX(IP) * UR - IMX(IP) * UI 'Butterfly calculation
TI = REX(IP) * UI + IMX(IP) * UR
REX(IP) = REX(i) - TR
IMX(IP) = IMX(i) - TI
REX(i) = REX(i) + TR
IMX(i) = IMX(i) + TI
Next
TR = UR
UR = TR * SR - UI * SI
UI = TR * SI + UI * SR
Next
Next
End Sub
End Module
- Код: Выделить всё
Option Explicit On
Public Class Form1
Const contrast = 6
Const gain = 6
Const SampleRate = 48000
Const bins = 2048
Dim N As Short 'Number of points in the DFT,
Dim REX() As Double 'Real part of input
Dim IMX() As Double 'Imaginary part of input
Dim ln As Single 'Vertical line # in Waterfall
Dim Volume As Double
Dim curSample As Integer
Dim brightness As Short
Dim scet As Integer
Dim fError As Boolean
Private Sub Command1_Click() Handles Command1.Click
Command1.Enabled = True
Command2.Enabled = False
End Sub
Private Sub Command2_Click() Handles Command2.Click
Command1.Enabled = False
Command2.Enabled = True
End Sub
Private Sub Form_Activate() Handles MyBase.Activated
N = 2048 'Number of samples must be 2^k where k = integer > 1
BUFFER_SIZE = 4096 'Must be at least 2 * max number of bins
ReDim REX(N - 1)
ReDim IMX(N - 1)
CmdSwitch.Text = "Start"
lblBrightness.Text = "Brightness " + Str(scrBrightness.Value)
brightness = scrBrightness.Value
ln = 0 'Waterfall must start at line 0
Timer1.Interval = 1
Timer1.Enabled = True
End Sub
Private Sub CmdSwitch_Click() Handles CmdSwitch.Click
If CmdSwitch.Text = "Start" Then
CmdSwitch.Text = "Freeze"
StartInput()
Else
CmdSwitch.Text = "Start"
StopInput()
End If
End Sub
Private Sub scrBrightness_Change() Handles scrBrightness.ValueChanged
lblBrightness.Text = "Brightness " + Str(scrBrightness.Value)
brightness = scrBrightness.Value
End Sub
Private Sub Timer1_Timer() Handles Timer1.Tick ' Process sound buffer if recording
If (fRecording) Then
If inHdr.dwFlags And WHDR_DONE Then
rc = waveInAddBuffer(hWaveIn, inHdr, Len(inHdr))
DrawSpectrum()
End If
End If
End Sub
Private Sub Form_QueryUnload() Handles MyBase.FormClosing
If (fRecording) Then
StopInput()
End If
End Sub
Sub DrawSpectrum()
'Dim Volume As Double
'Dim curSample As Long
Dim f As Integer, kk As Integer
N = 2048
For curSample = 0 To 2047
GetMono16Sample(curSample, Volume)
REX(curSample) = Volume
IMX(curSample) = 0
Next
FFT(N, REX, IMX)
For f = 0 To 1024
kk = Math.Sqrt(REX(f) ^ 2) * Int((brightness * 100))
If kk < 1 Then
kk = 1
End If
kk = gain * Math.Log(kk)
Text1.Text = CStr(kk)
Next
If kk > 16 Then 'StopInput
scet = scet + 1
Command1_Click()
Command1.Text = CStr(scet)
'Else
'Command2_Click
End If
End Sub
End Class
Оно компилируется и запускается И даже не падает, у меня
Invader писал(а):Тип переменной "curSample" не будет определен, так как она связана с полем во внешней области видимости. Нужно изменить имя "curSample" или использовать полное имя (например, "Me.curSample" or "MyBase.curSample")
Оно связано с тем, что у тебя в качестве переменной цикла используется переменная, объявленная в классе.The type for variable 'curSample' will not be inferred because it is bound to a field in an enclosing scope. Either change the name of 'curSample', or use the fully qualified name (for example, 'Me.curSample' or 'MyBase.curSample').
Invader писал(а):а у меня конвертируется в VB.NET с ошибками
Сейчас этот форум просматривают: Google-бот и гости: 12