现在需要用软件控制声卡上的line out 输出 不知道谁有办法 谢谢(分不够可以加)
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Private Declare Function waveOutGetDevCaps Lib "Winmm.dll" Alias "waveOutGetDevCapsA" _
(ByVal uDeviceID As Long, lpCaps As Waveoutcaps, ByVal uSize As Long) As Long
Const Mb_OK = &H0
Const Maxpnamelen = 32
Const Wave_Format_1m08 = &H1
Const Wave_Format_1m16 = &H4
Const Wave_Format_1s08 = &H2
Const Wave_Format_1s16 = &H8
Const Wave_Format_2m08 = &H10
Const Wave_Format_2m16 = &H40
Const Wave_Format_2s08 = &H20
Const Wave_Format_2s16 = &H80
Const Wave_Format_4m08 = &H100
Const Wave_Format_4m16 = &H400
Const Wave_Format_4s08 = &H200
Const Wave_Format_4s16 = &H800
Const Wavecaps_Lrvolume = &H8
Const Wavecaps_Pitch = &H1
Const Wavecaps_Playbackrate = &H2
Const Wavecaps_Sync = &H10
Const Wavecaps_Volume = &H4Private Type Waveoutcaps
Wmid As Integer
Wpid As Integer
Vdriverversion As Long
Szpname As String * Maxpnamelen
Dwformats As Long
Wchannels As Integer
Dwsupport As Long
End Type
Private Sub Command1_Click() '测试声卡
Dim wave1, wave2, Mainversion As String
Dim Pname, Channel As String
Dim wavinf, lesser As Long
Dim Returncaps As Waveoutcaps
Dim I As Integer
Dim Y As Long
Y = waveOutGetNumDevs()
If Y > 0 Then
wavinf = waveOutGetDevCaps(0, Returncaps, Len(Returncaps)) '获取声卡信息
If wavinf = 0 Then
Mainversion = Returncaps.Vdriverversion \ 256
lesser = Returncaps.Vdriverversion Mod 256
Pname = Left$(Returncaps.Szpname, InStr(Returncaps.Szpname, Chr$(0)) - 1)
Channel = Str$(Returncaps.Wchannels)
Text1.Text = "产口名称" & Pname & vbCrLf
Text1.Text = Text1.Text & "产品ID" & Returncaps.Wpid & vbCrLf
Text1.Text = Text1.Text & "驱动程序I" & Returncaps.Wmid & vbCrLf
Text1.Text = Text1.Text & "驱动程序版本º" & Mainversion & "." & lesser & vbCrLf
Text1.Text = Text1.Text & "输出声道" & Channel & vbCrLf
Text1.Text = Text1.Text & "支持格式版本" & vbCrLf
Text1.Text = Text1.Text & "输出声道" & Channel & vbCrLf
Text1.Text = Text1.Text & "扩展输出列表" & vbCrLf
For I = 0 To 11
If Returncaps.Dwformats And (2 ^ I) Then '列举声卡支持格式
Select Case 2 ^ I
Case Wave_Format_1m08
wave1 = "11.025Khz,Mono,8bit,11Kb/Ps"
Case Wave_Format_1m16
wave1 = "11.025Khz,Mono,16bit,22Kb/Ps"
Case Wave_Format_1s08
wave1 = "11.025Khz,Stereo,8bit,22Kb/Ps"
Case Wave_Format_1s16
wave1 = "11.025Khz,Stereo,16bit,43Kb/Ps"
Case Wave_Format_2m08
wave1 = "22.05Khz,Mono,8bit,22Kb/Ps"
Case Wave_Format_2m16
wave1 = "22.05Khz,Mono,16bit,43Kb/Ps"
Case Wave_Format_2s08
wave1 = "22.05Khz,Stereo,8bit,43Kb/Ps"
Case Wave_Format_2s16
wave1 = "22.05Khz,Stereo,16bit,86Kb/Ps"
Case Wave_Format_4m08
wave1 = "44.1Khz,Mono,8bit,43Kb/Ps"
Case Wave_Format_4m16
wave1 = "44.1Khz,Mono,16bit,86Kb/Ps"
Case Wave_Format_4s08
wave1 = "44.1Khz,Stereo,8bit,86Kb/Ps"
Case Wave_Format_4s16
wave1 = "44.1Khz,Stereo,16bit,172Kb/Ps"
End Select
Text1.Text = Text1.Text & wave1 & vbCrLf
End If
Next I
For I = 0 To 4
If Returncaps.Dwsupport And (2 ^ I) Then '列举声卡扩展功能
Select Case 2 ^ I
Case Wavecaps_Pitch
wave2 = "Support Pitch"
Case Wavecaps_Playbackrate
wave2 = "Support Playback"
Case Wavecaps_Volume
wave2 = "Support Volume Control"
Case Wavecaps_Lrvolume
wave2 = "Support Left-Right Channals"
Case Wavecaps_Sync
wave2 = "Support Synchronization"
End Select
Text1.Text = Text1.Text & wave2 & vbCrLf
End If
Next I
End If
Else
Text1.Text = "你的计算机上无声卡设备"
End If
End SubPrivate Sub Command2_Click()
End
End Sub