'Example submitted by Danjel Nyberg 'It needs a textbox (Text1) and two command buttons (Command1, Command2) 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
http://www.cnblogs.com/del/archive/2008/02/24/1079895.html
http://www.mndsoft.com/blog/article.asp?id=1036
http://www.mndsoft.com/blog/article.asp?id=912
http://www.mndsoft.com/blog/article.asp?id=703
'It needs a textbox (Text1) and two command buttons (Command1, Command2)
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