试试下面的我也很久没有用过了 Private Declare Function waveOutSetVolume Lib "Winmm" (ByVal wDeviceID As Integer, ByVal dwVolume As Long) As Integer Private Declare Function waveOutGetVolume Lib "Winmm" (ByVal wDeviceID As Integer, dwVolume As Long) As Integer Private Sub Command1_Click() Dim a, i As Long Dim tmp As String a = waveOutGetVolume(0, i) tmp = "&h" & Right(Hex$(i), 4) Text1 = CLng(tmp) End Sub Private Sub Command2_Click() Dim a, i As Long Dim tmp, vol As String vol = Text1 tmp = Right((Hex$(vol + 65536)), 4) vol = CLng("&H" & tmp & tmp) a = waveOutSetVolume(0, vol) End Sub
dwSupport As Long End Type Private Type VolumeSetting LeftVol As Integer RightVol As Integer End Type Private Declare Function auxGetNumDevs Lib "winmm.dll" () As Long Private Declare Function auxGetDevCaps Lib "winmm.dll" Alias "auxGetDevCapsA" (ByVal uDeviceID As Long, lpCaps As AUXCAPS, ByVal uSize As Long) As Long Private Declare Function auxSetVolume Lib "winmm.dll" (ByVal uDeviceID As Long, ByVal dwVolume As Long) As Long Private Declare Function auxGetVolume Lib "winmm.dll" (ByVal uDeviceID As Long, ByRef lpdwVolume As VolumeSetting) As Long Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (hpvDest As Any, hpvSource As Any, ByVal cbCopy As Long) Private Function nSigned(ByVal lUnsignedInt As Long) As Integer Dim nReturnVal As Integer ' Return value from Function If lUnsignedInt > 65535 Or lUnsignedInt < 0 Then MsgBox "Error in conversion from Unsigned to nSigned Integer" nSignedInt = 0 Exit Function End If If lUnsignedInt > 32767 Then nReturnVal = lUnsignedInt - 65536 Else nReturnVal = lUnsignedInt End If nSigned = nReturnVal End Function Private Function lUnsigned(ByVal nSignedInt As Integer) As Long Dim lReturnVal As Long ' Return value from Function If nSignedInt < 0 Then lReturnVal = nSignedInt + 65536 Else lReturnVal = nSignedInt End If If lReturnVal > 65535 Or lReturnVal < 0 Then MsgBox "Error in conversion from nSigned to Unsigned Integer" lReturnVal = 0 End If lUnsigned = lReturnVal End Function Private Function lSetVolume(ByRef lLeftVol As Long, ByRef lRightVol As Long, lDeviceID As Long) As Long Dim Volume As VolumeSetting, lBothVolumes As Long Volume.LeftVol = nSigned(lLeftVol * 65535 / HIGHEST_VOLUME_SETTING) Volume.RightVol = nSigned(lRightVol * 65535 / HIGHEST_VOLUME_SETTING) 'copy our Volume-variable to a long CopyMemory lBothVolumes, Volume.LeftVol, Len(Volume) 'call the SetVolume-function lSetVolume = auxSetVolume(lDeviceID, lBothVolumes) End Function Private Sub Form_Load() 'KPD-Team 2000 'URL: http://www.allapi.net/ 'E-Mail: [email protected] Dim Volume As VolumeSetting, Cnt As Long, AC As AUXCAPS 'set the output to a persistent graphic Me.AutoRedraw = True 'loop through all the devices For Cnt = 0 To auxGetNumDevs - 1 'auxGetNumDevs is zero-based 'get the volume auxGetVolume Cnt, Volume 'get the device capabilities auxGetDevCaps Cnt, AC, Len(AC) 'print the name on the form Me.Print "Device #" + Str$(Cnt + 1) + ": " + Left(AC.szPname, InStr(AC.szPname, vbNullChar) - 1) 'print the left- and right volume on the form Me.Print "Left volume:" + Str$(HIGHEST_VOLUME_SETTING * lUnsigned(Volume.LeftVol) / 65535) Me.Print "Right volume:" + Str$(HIGHEST_VOLUME_SETTING * lUnsigned(Volume.RightVol) / 65535) 'set the left- and right-volume to 50% lSetVolume 50, 50, Cnt Me.Print "Both volumes now set to 50%" 'empty line Me.Print Next End Sub
我有完整的 API 取得、设置音量的程序,还有取得及设置左右匀衡的功能,还有其它高级功能,我自己写的 。
Private Declare Function waveOutSetVolume Lib "Winmm" (ByVal wDeviceID As Integer, ByVal dwVolume As Long) As Integer
Private Declare Function waveOutGetVolume Lib "Winmm" (ByVal wDeviceID As Integer, dwVolume As Long) As Integer
Private Sub Command1_Click()
Dim a, i As Long
Dim tmp As String
a = waveOutGetVolume(0, i)
tmp = "&h" & Right(Hex$(i), 4)
Text1 = CLng(tmp)
End Sub
Private Sub Command2_Click()
Dim a, i As Long
Dim tmp, vol As String
vol = Text1
tmp = Right((Hex$(vol + 65536)), 4)
vol = CLng("&H" & tmp & tmp)
a = waveOutSetVolume(0, vol)
End Sub
End Type
Private Type VolumeSetting
LeftVol As Integer
RightVol As Integer
End Type
Private Declare Function auxGetNumDevs Lib "winmm.dll" () As Long
Private Declare Function auxGetDevCaps Lib "winmm.dll" Alias "auxGetDevCapsA" (ByVal uDeviceID As Long, lpCaps As AUXCAPS, ByVal uSize As Long) As Long
Private Declare Function auxSetVolume Lib "winmm.dll" (ByVal uDeviceID As Long, ByVal dwVolume As Long) As Long
Private Declare Function auxGetVolume Lib "winmm.dll" (ByVal uDeviceID As Long, ByRef lpdwVolume As VolumeSetting) As Long
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (hpvDest As Any, hpvSource As Any, ByVal cbCopy As Long)
Private Function nSigned(ByVal lUnsignedInt As Long) As Integer
Dim nReturnVal As Integer ' Return value from Function
If lUnsignedInt > 65535 Or lUnsignedInt < 0 Then
MsgBox "Error in conversion from Unsigned to nSigned Integer"
nSignedInt = 0
Exit Function
End If
If lUnsignedInt > 32767 Then
nReturnVal = lUnsignedInt - 65536
Else
nReturnVal = lUnsignedInt
End If
nSigned = nReturnVal
End Function
Private Function lUnsigned(ByVal nSignedInt As Integer) As Long
Dim lReturnVal As Long ' Return value from Function
If nSignedInt < 0 Then
lReturnVal = nSignedInt + 65536
Else
lReturnVal = nSignedInt
End If
If lReturnVal > 65535 Or lReturnVal < 0 Then
MsgBox "Error in conversion from nSigned to Unsigned Integer"
lReturnVal = 0
End If
lUnsigned = lReturnVal
End Function
Private Function lSetVolume(ByRef lLeftVol As Long, ByRef lRightVol As Long, lDeviceID As Long) As Long
Dim Volume As VolumeSetting, lBothVolumes As Long
Volume.LeftVol = nSigned(lLeftVol * 65535 / HIGHEST_VOLUME_SETTING)
Volume.RightVol = nSigned(lRightVol * 65535 / HIGHEST_VOLUME_SETTING)
'copy our Volume-variable to a long
CopyMemory lBothVolumes, Volume.LeftVol, Len(Volume)
'call the SetVolume-function
lSetVolume = auxSetVolume(lDeviceID, lBothVolumes)
End Function
Private Sub Form_Load()
'KPD-Team 2000
'URL: http://www.allapi.net/
'E-Mail: [email protected]
Dim Volume As VolumeSetting, Cnt As Long, AC As AUXCAPS
'set the output to a persistent graphic
Me.AutoRedraw = True
'loop through all the devices
For Cnt = 0 To auxGetNumDevs - 1 'auxGetNumDevs is zero-based
'get the volume
auxGetVolume Cnt, Volume
'get the device capabilities
auxGetDevCaps Cnt, AC, Len(AC)
'print the name on the form
Me.Print "Device #" + Str$(Cnt + 1) + ": " + Left(AC.szPname, InStr(AC.szPname, vbNullChar) - 1)
'print the left- and right volume on the form
Me.Print "Left volume:" + Str$(HIGHEST_VOLUME_SETTING * lUnsigned(Volume.LeftVol) / 65535)
Me.Print "Right volume:" + Str$(HIGHEST_VOLUME_SETTING * lUnsigned(Volume.RightVol) / 65535)
'set the left- and right-volume to 50%
lSetVolume 50, 50, Cnt
Me.Print "Both volumes now set to 50%"
'empty line
Me.Print
Next
End Sub
我有完整的 API 取得、设置音量的程序,还有取得及设置左右匀衡的功能,还有其它高级功能,我自己写的 。
要的的话 给 200分 ,并留下油箱,我从没食言过!