我需要使我的应用程序静音，因为它使用 5 个网络浏览器并导航到带有 Flash 的站点，这可能会导致很多烦人的声音，所以我到处搜索，但没有运气我想知道是否有办法使我的应用程序或我的应用程序静音通过 vb 代码或任何其他语言的网络浏览器（我将制作一个插件）。在此先感谢您的帮助。
问问题
1427 次
2 回答
5
在 Windows Vista 及更高版本上，您可以通过调用内部函数来设置单个应用程序的音量winmm.dll
[DllImport("winmm.dll")]
private static extern int waveOutSetVolume(IntPtr hwo, uint dwVolume);
并调用以下静态方法：
public static void MuteApplication()
{
int NewVolume = 0;
uint NewVolumeAllChannels = (((uint)NewVolume & 0x0000ffff) | ((uint)NewVolume << 16));
waveOutSetVolume(IntPtr.Zero, NewVolumeAllChannels);
}
于 2013-10-19T10:16:22.473 回答
0
我认为您将需要设置IExplorer播放该声音的进程的配置。
您可以使用注册表设置一个标志以不播放声音：
在这个键：
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
值名称：
Play_Background_Sounds
数据：
no
前段时间我做了一个类来管理Regedit操作，你可以这样使用它：
RegEdit.Set_Value("HKCU\Software\Microsoft\Internet Explorer\Main", _
"Play_Background_Sounds", _
"no", _
Microsoft.Win32.RegistryValueKind.String)
RegEdit.Set_Value("HKCU\Software\Microsoft\Internet Explorer\Main", _
"Play_Background_Sounds", _
"yes", _
Microsoft.Win32.RegistryValueKind.String)
这是课程：
#Region " RegEdit "
' [ RegEdit Functions ]
'
' // By Elektro H@cker
'
' Examples :
'
' -----------
' Create Key:
' -----------
' RegEdit.Create_Key("HKCU\Software\MyProgram") ' Creates "HKCU\Software\MyProgram"
' RegEdit.Create_Key("HKEY_CURRENT_USER\Software\MyProgram\Settings\") ' Creates "HKCU\Software\MyProgram\Settings"
'
' -----------
' Delete Key:
' -----------
' RegEdit.Delete_Key("HKLM\Software\7-zip") ' Deletes the "7-zip" tree including subkeys
' RegEdit.Delete_Key("HKEY_LOCAL_MACHINE\Software\7-zip\") ' Deletes the "7-zip" tree including subkeys
'
' -------------
' Delete Value:
' -------------
' RegEdit.Delete_Value("HKCU\Software\7-Zip", "Lang") ' Deletes "Lang" Value
' RegEdit.Delete_Value("HKEY_CURRENT_USER\Software\7-Zip\", "Lang") ' Deletes "Lang" Value
'
' ----------
' Get Value:
' ----------
' Dim Data As String = RegEdit.Get_Value("HKCU\Software\MyProgram", "Value name"))
' Dim Data As String = RegEdit.Get_Value("HKEY_CURRENT_USER\Software\MyProgram", "Value name"))
'
' ----------
' Set Value:
' ----------
' RegEdit.Set_Value("HKCU\Software\MyProgram", "Value name", "Data", Microsoft.Win32.RegistryValueKind.String) ' Create/Replace "Value Name" with "Data" as string data
' RegEdit.Set_Value("HKEY_CURRENT_USER\Software\MyProgram\", "Value name", "Data", Microsoft.Win32.RegistryValueKind.String) ' Create/Replace "Value Name" with "Data" as string data
'
' -----------
' Export Key:
' -----------
' RegEdit.Export_Key("HKLM", "C:\HKLM.reg") ' Export entire "HKEY_LOCAL_MACHINE" Tree to "C:\HKLM.reg" file.
' RegEdit.Export_Key("HKLM\Software\7-zip\", "C:\7-zip.reg") ' Export entire "7-zip" Tree to "C:\7-zip.reg" file.
'
' ------------
' Import File:
' ------------
' RegEdit.Import_RegFile("C:\Registry_File.reg") ' Install a registry file.
'
' ------------
' Jump To Key:
' ------------
' RegEdit.Jump_To_Key("HKLM") ' Opens Regedit at "HKEY_LOCAL_MACHINE" Root.
' RegEdit.Jump_To_Key("HKEY_LOCAL_MACHINE\Software\7-zip\") ' Opens Regedit at "HKEY_LOCAL_MACHINE\Software\7-zip" tree.
'
' -----------
' Exist Key?:
' -----------
' MsgBox(RegEdit.Exist_Key("HKCU\software") ' Checks if "Software" Key exist.
' -------------
' Exist Value?:
' -------------
' MsgBox(RegEdit.Exist_Value("HKLM\software\7-zip", "Path") ' Checks if "Path" value exist.
'
' ------------
' Exist Data?:
' ------------
' MsgBox(RegEdit.Exist_Data("HKLM\software\7-zip", "Path") ' Checks if "Path" value have empty data.
'
' ---------
' Copy Key:
' ---------
' RegEdit.Copy_Key("HKCU", "Software", "7-Zip", "HKLM", "Software", "7-zip") ' Copies "HKCU\Software\7-Zip" to "HKLM\Software\7-Zip"
' RegEdit.Copy_Key("HKCU", "Software", "7-Zip", Nothing, "Software", "7-zip") ' Copies "HKCU\Software\7-Zip" to "HKCU\Software\7-Zip"
' RegEdit.Copy_Key("HKCU", "Software", "7-Zip", "HKLM", "Software", Nothing) ' Copies "HKCU\Software\7-Zip" to "HKLM\Software\"
' RegEdit.Copy_Key("HKCU", "Software", "7-Zip", "HKLM", Nothing, Nothing) ' Copies "HKCU\Software\7-Zip" to "HKLM\"
' RegEdit.Copy_Key("HKCU", "\Software\", "\7-Zip\", "HKLM", "\Software\", "\7-zip\") ' Copies "HKCU\Software\7-Zip" to "HKLM\Software\7-Zip"
'
' -----------
' Copy Value:
' -----------
' RegEdit.Copy_Value("HKLM\software\7-zip", "path", "HKLM\software\7-zip", "path_backup") ' Copies "Path" value with their data to "HKLM\software\7-zip" "path_backup".
'
' -------------------
' Set_UserAccess_Key:
' -------------------
' RegEdit.Set_UserAccess_Key("HKCU\Software\7-Zip", {RegEdit.RegUserAccess.Administrators_Full_Access})
' RegEdit.Set_UserAccess_Key("HKEY_CURRENT_USER\Software\7-Zip", {RegEdit.RegUserAccess.Administrators_Full_Access, RegEdit.RegUserAccess.Creator_Full_Access, RegEdit.RegUserAccess.System_Full_Access})
#Region " RegEdit Class "
Public Class RegEdit
Private Shared RootKey As Microsoft.Win32.RegistryKey = Nothing
Private Shared KeyPath As String = String.Empty
''' <summary>
''' Create a new registry key.
''' </summary>
Public Shared Function Create_Key(ByVal RegKey As String) As Boolean
RootKey = Get_Root_Key(RegKey)
KeyPath = Get_Key_Path(RegKey)
Try
RootKey.CreateSubKey(KeyPath)
RootKey.Dispose()
Return True
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
End Function
''' <summary>
''' Delete a registry key.
''' </summary>
Public Shared Function Delete_Key(ByVal RegKey As String) As Boolean
RootKey = Get_Root_Key(RegKey)
KeyPath = Get_Key_Path(RegKey)
Try
RootKey.DeleteSubKeyTree(KeyPath)
RootKey.Dispose()
Return True
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
End Function
''' <summary>
''' Delete a registry key.
''' </summary>
Public Shared Function Delete_Value(ByVal RegKey As String, ByVal RegValue As String) As Boolean
RootKey = Get_Root_Key(RegKey)
KeyPath = Get_Key_Path(RegKey)
Try
RootKey.OpenSubKey(KeyPath, True).DeleteValue(RegValue)
RootKey.Dispose()
Return True
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
End Function
''' <summary>
''' Get the data of a registry value.
''' </summary>
Public Shared Function Get_Value(ByVal RegKey As String, ByVal RegValue As String) As String
RootKey = Get_Root_Key(RegKey)
KeyPath = RootKey.ToString & "\" & Get_Key_Path(RegKey)
RootKey.Dispose()
Try
Return My.Computer.Registry.GetValue(KeyPath, RegValue, Nothing)
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
End Function
''' <summary>
''' Set the data of a registry value.
''' If the Key or value don't exist it will be created automatically.
''' </summary>
Public Shared Function Set_Value(ByVal RegKey As String, _
ByVal RegValue As String, _
ByVal RegData As String, _
ByVal RegDataType As Microsoft.Win32.RegistryValueKind) As Boolean
RootKey = Get_Root_Key(RegKey)
KeyPath = RootKey.ToString & "\" & Get_Key_Path(RegKey)
Try
If RegDataType = Microsoft.Win32.RegistryValueKind.Binary Then
My.Computer.Registry.SetValue(KeyPath, RegValue, System.Text.Encoding.ASCII.GetBytes(RegData), Microsoft.Win32.RegistryValueKind.Binary)
RootKey.Dispose()
Else
My.Computer.Registry.SetValue(KeyPath, RegValue, RegData, RegDataType)
RootKey.Dispose()
End If
Return True
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
End Function
''' <summary>
''' Export a registry key (including sub-keys) to a file.
''' </summary>
Public Shared Function Export_Key(ByVal RegKey As String, ByVal OutputFile As String) As Boolean
Dim RootKey As String = Get_Root_Key(RegKey).ToString
Dim KeyPath As String = RootKey & "\" & Get_Key_Path(RegKey)
If KeyPath.EndsWith("\") Then KeyPath = KeyPath.Substring(0, KeyPath.Length - 1)
Try
Dim Regedit As New Process()
Dim Regedit_Info As New ProcessStartInfo()
Regedit_Info.FileName = "Reg.exe"
Regedit_Info.Arguments = "Export " & """" & KeyPath & """" & " " & """" & OutputFile & """" & " /y"
Regedit_Info.CreateNoWindow = True
Regedit_Info.WindowStyle = ProcessWindowStyle.Hidden
Regedit_Info.UseShellExecute = False
Regedit.StartInfo = Regedit_Info
Regedit.Start()
Regedit.WaitForExit()
If Regedit.ExitCode <> 0 Then
Regedit.Dispose()
Return False
Else
Regedit.Dispose()
Return True
End If
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
End Function
''' <summary>
''' Import a registry file.
''' </summary>
Public Shared Function Import_RegFile(ByVal RegFile As String) As Boolean
If IO.File.Exists(RegFile) Then
Try
Dim Regedit As New Process()
Dim Regedit_Info As New ProcessStartInfo()
Regedit_Info.FileName = "Reg.exe"
Regedit_Info.Arguments = "Import " & """" & RegFile & """"
Regedit_Info.CreateNoWindow = True
Regedit_Info.WindowStyle = ProcessWindowStyle.Hidden
Regedit_Info.UseShellExecute = False
Regedit.StartInfo = Regedit_Info
Regedit.Start()
Regedit.WaitForExit()
If Regedit.ExitCode <> 0 Then
Regedit.Dispose()
Return False
Else
Regedit.Dispose()
Return True
End If
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
Else
' MsgBox("File don't exist")
Return False
End If
End Function
''' <summary>
''' Open Regedit at specific key.
''' </summary>
Public Shared Function Jump_To_Key(ByVal RegKey As String) As Boolean
RootKey = Get_Root_Key(RegKey)
KeyPath = RootKey.ToString & "\" & Get_Key_Path(RegKey)
If KeyPath.EndsWith("\") Then KeyPath = KeyPath.Substring(0, KeyPath.Length - 1)
Try
Set_Value("HKCU\Software\Microsoft\Windows\CurrentVersion\Applets\Regedit", "LastKey", "" & KeyPath & "", Microsoft.Win32.RegistryValueKind.String)
RootKey.Dispose()
Process.Start("Regedit.exe")
Return True
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
End Function
''' <summary>
''' Checks if a Key exist.
''' </summary>
Public Shared Function Exist_Key(ByVal RegKey As String) As Boolean
RootKey = Get_Root_Key(RegKey)
KeyPath = Get_Key_Path(RegKey)
If RootKey Is Nothing OrElse KeyPath Is Nothing Then Return False
If RootKey.OpenSubKey(KeyPath, False) Is Nothing Then
RootKey.Dispose()
Return False
Else
RootKey.Dispose()
Return True
End If
End Function
''' <summary>
''' Checks if a value exist.
''' </summary>
Public Shared Function Exist_Value(ByVal RegKey As String, ByVal RegValue As String) As Boolean
RootKey = Get_Root_Key(RegKey)
KeyPath = Get_Key_Path(RegKey)
Try
If RootKey.OpenSubKey(KeyPath, False).GetValue(RegValue) = String.Empty Then
RootKey.Dispose()
Return False
Else
RootKey.Dispose()
Return True
End If
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
End Function
''' <summary>
''' Check if a value have empty data.
''' </summary>
Public Shared Function Exist_Data(ByVal RegKey As String, ByVal RegValue As String) As Boolean
RootKey = Get_Root_Key(RegKey)
KeyPath = RootKey.ToString & "\" & Get_Key_Path(RegKey)
Try
If My.Computer.Registry.GetValue(KeyPath, RegValue, Nothing) = Nothing Then
RootKey.Dispose()
Return False
Else
RootKey.Dispose()
Return True
End If
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
End Function
''' <summary>
''' Copy a key tree to another location of the registry.
''' </summary>
Public Shared Function Copy_Key(ByVal OldRootKey As String, _
ByVal OldPath As String, _
ByVal OldName As String, _
ByVal NewRootKey As String, _
ByVal NewPath As String, _
ByVal NewName As String) As Boolean
If OldPath Is Nothing Then OldPath = ""
If NewRootKey Is Nothing Then NewRootKey = OldRootKey
If NewPath Is Nothing Then NewPath = ""
If NewName Is Nothing Then NewName = ""
If OldRootKey.EndsWith("\") Then OldRootKey = OldRootKey.Substring(0, OldRootKey.Length - 1)
If NewRootKey.EndsWith("\") Then NewRootKey = NewRootKey.Substring(0, NewRootKey.Length - 1)
If OldPath.StartsWith("\") Then OldPath = OldPath.Substring(1, OldPath.Length - 1)
If OldPath.EndsWith("\") Then OldPath = OldPath.Substring(0, OldPath.Length - 1)
If NewPath.StartsWith("\") Then NewPath = NewPath.Substring(1, NewPath.Length - 1)
If NewPath.EndsWith("\") Then NewPath = NewPath.Substring(0, NewPath.Length - 1)
If OldName.StartsWith("\") Then OldName = OldName.Substring(1, OldName.Length - 1)
If OldName.EndsWith("\") Then OldName = OldName.Substring(0, OldName.Length - 1)
If NewName.StartsWith("\") Then NewName = NewName.Substring(1, NewName.Length - 1)
If NewName.EndsWith("\") Then NewName = NewName.Substring(0, NewName.Length - 1)
Dim OrigRootKey As Microsoft.Win32.RegistryKey = Get_Root_Key(OldRootKey)
Dim DestRootKey As Microsoft.Win32.RegistryKey = Get_Root_Key(NewRootKey)
Dim oldkey As Microsoft.Win32.RegistryKey = OrigRootKey.OpenSubKey(OldPath + "\" + OldName, True)
Dim newkey As Microsoft.Win32.RegistryKey = DestRootKey.OpenSubKey(NewPath, True).CreateSubKey(NewName)
Reg_Copy_SubKeys(oldkey, newkey)
Return True
End Function
Private Shared Sub Reg_Copy_SubKeys(OrigKey As Microsoft.Win32.RegistryKey, DestKey As Microsoft.Win32.RegistryKey)
Dim ValueNames As String() = OrigKey.GetValueNames()
Dim SubKeyNames As String() = OrigKey.GetSubKeyNames()
For i As Integer = 0 To ValueNames.Length - 1
Application.DoEvents()
DestKey.SetValue(ValueNames(i), OrigKey.GetValue(ValueNames(i)))
Next
For i As Integer = 0 To SubKeyNames.Length - 1
Application.DoEvents()
Reg_Copy_SubKeys(OrigKey.OpenSubKey(SubKeyNames(i), True), DestKey.CreateSubKey(SubKeyNames(i)))
Next
End Sub
''' <summary>
''' Copy a value with their data to another location of the registry.
''' If the Key don't exist it will be created automatically.
''' </summary>
Public Shared Function Copy_Value(ByVal RegKey As String, ByVal RegValue As String, _
ByVal NewRegKey As String, ByVal NewRegValue As String) As Boolean
Dim OldRootKey As String = Get_Root_Key(RegKey).ToString
Dim OldKeyPath As String = OldRootKey & "\" & Get_Key_Path(RegKey)
Dim NewRootKey As String = Get_Root_Key(NewRegKey).ToString
Dim NewKeyPath As String = NewRootKey & "\" & Get_Key_Path(NewRegKey)
Dim RegData = Get_Value(OldKeyPath, RegValue)
Try
Set_Value(NewKeyPath, NewRegValue, RegData, Microsoft.Win32.RegistryValueKind.Unknown)
Return True
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
End Function
''' <summary>
''' Valid User identifiers for Regini.exe command.
''' </summary>
Public Enum RegUserAccess As Short
Administrators_Full_Access = 1
Administrators_Read_Access = 2
Administrators_Read_and_Write_Access = 3
Administrators_Read_Write_and_Delete_Access4
Administrators_Read_Write_and_Execute_Access = 20
Creator_Full_Access = 5
Creator_Read_and_Write_Access = 6
Interactive_User_Full_Access = 21
Interactive_User_Read_and_Write_Access = 22
Interactive_User_Read_Write_and_Delete_Access = 23
Power_Users_Full_Access = 11
Power_Users_Read_and_Write_Access = 12
Power_Users_Read_Write_and_Delete_Access = 13
System_Full_Access = 17
System_Operators_Full_Access = 14
System_Operators_Read_and_Write_Access = 15
System_Operators_Read_Write_and_Delete_Access = 16
System_Read_Access = 19
System_Read_and_Write_Access = 18
World_Full_Access = 7
World_Read_Access = 8
World_Read_and_Write_Access = 9
World_Read_Write_and_Delete_Access = 10
End Enum
''' <summary>
''' Modify the User permissions of a registry key.
''' </summary>
Public Shared Function Set_UserAccess_Key(ByVal RegKey As String, ByVal RegUserAccess() As RegUserAccess) As Boolean
Dim PermissionString As String = String.Empty
RootKey = Get_Root_Key(RegKey)
KeyPath = RootKey.ToString & "\" & Get_Key_Path(RegKey)
If KeyPath.EndsWith("\") Then KeyPath = KeyPath.Substring(0, KeyPath.Length - 1)
For Each user In RegUserAccess
' Application.DoEvents()
PermissionString += " " & user
Next
PermissionString = "[" & PermissionString & "]"
PermissionString = PermissionString.Replace("[ ", "[")
Try
Using TextFile As New IO.StreamWriter(System.IO.Path.GetTempPath() & "Regini.ini", False, System.Text.Encoding.Default)
TextFile.WriteLine("""" & KeyPath & """" & " " & PermissionString)
End Using
Dim Regini As New Process()
Dim Regini_Info As New ProcessStartInfo()
Regini_Info.FileName = "Regini.exe"
Regini_Info.Arguments = """" & System.IO.Path.GetTempPath() & "Regini.ini" & """"
Regini_Info.CreateNoWindow = True
Regini_Info.WindowStyle = ProcessWindowStyle.Hidden
Regini_Info.UseShellExecute = False
Regini.StartInfo = Regini_Info
Regini.Start()
Regini.WaitForExit()
If Regini.ExitCode <> 0 Then
RootKey.Dispose()
Regini.Dispose()
Return False
Else
RootKey.Dispose()
Regini.Dispose()
Return True
End If
Catch ex As Exception
' MsgBox(ex.Message)
' Throw New Exception(ex.Message)
Return False
End Try
End Function
' Returns the RootKey formatted
Private Shared Function Get_Root_Key(ByVal RegKey As String) As Microsoft.Win32.RegistryKey
Select Case RegKey.ToUpper.Split("\").First
Case "HKCR", "HKEY_CLASSES_ROOT" : Return Microsoft.Win32.Registry.ClassesRoot
Case "HKCC", "HKEY_CURRENT_CONFIG" : Return Microsoft.Win32.Registry.CurrentConfig
Case "HKCU", "HKEY_CURRENT_USER" : Return Microsoft.Win32.Registry.CurrentUser
Case "HKLM", "HKEY_LOCAL_MACHINE" : Return Microsoft.Win32.Registry.LocalMachine
Case "HKEY_PERFORMANCE_DATA" : Return Microsoft.Win32.Registry.PerformanceData
Case Else : Return Nothing
End Select
End Function
' Returns the KeyPath formatted
Private Shared Function Get_Key_Path(ByVal RegKey As String) As String
If RegKey Is Nothing Then Return Nothing
Dim Path As String = String.Empty
For i As Integer = 1 To RegKey.Split("\").Length - 1
' Application.DoEvents()
Path &= RegKey.Split("\")(i) & "\"
Next
If Not Path.Contains("\") Then Path = Path & "\"
Path = Path.Substring(0, Path.LastIndexOf("\"))
Return Path
End Function
End Class
#End Region
#End Region
于 2013-10-19T10:14:28.937 回答