RegistryProxy.GetValue(String, String, Object) Method

Definition

Namespace:

Microsoft.VisualBasic.MyServices

Assembly:

Microsoft.VisualBasic.Forms.dll

Gets a value from a registry key.

public:
 System::Object ^ GetValue(System::String ^ keyName, System::String ^ valueName, System::Object ^ defaultValue);

public object GetValue (string keyName, string valueName, object defaultValue);

member this.GetValue : string * string * obj -> obj

Public Function GetValue (keyName As String, valueName As String, defaultValue As Object) As Object

Parameters

keyName

String

String. Key from which the value is to be retrieved. Required.

valueName

String

String. Value to be retrieved. Required.

defaultValue

Object

Object. Default value to be supplied if the value does not exist. Required.

Returns

Object

Gets a value from a registry key.

Exceptions

SecurityException

The user does not have the permissions required to read from the registry key.

IOException

The RegistryKey that contains the specified value has been marked for deletion.

ArgumentException

keyName does not begin with a valid registry root.

Examples

This example reads the value Name from HKEY_CURRENT_USER\Software\MyApp and displays it in a MessageBox.

Dim readValue As Object
readValue = My.Computer.Registry.GetValue(
  "HKEY_CURRENT_USER\Software\MyApp", "Name", Nothing)
MsgBox("The value is " & CStr(readValue))

Remarks

valueName is not case-sensitive.

A registry key can contain one value that is not associated with any name. When this unnamed value is displayed in the registry editor, the string "(Default)" appears instead of a name. To retrieve this unnamed value, specify either null or the empty string ("") for valueName.

The following table lists examples of tasks involving the GetValue method.

To	See
Read a value from a registry key	How to: Read a Value from a Registry Key

See also

• Objects (Visual Basic)
• Reading from and Writing to the Registry (Visual Basic)
• Security and the Registry (Visual Basic)