RegistryValueOptions Enumeration
.NET Framework (current version)
Specifies optional behavior when retrieving name/value pairs from a registry key.
This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.
Assembly: mscorlib (in mscorlib.dll)
| Member name | Description | |
|---|---|---|
| DoNotExpandEnvironmentNames | A value of type RegistryValueKind::ExpandString is retrieved without expanding its embedded environment variables. | |
| None | No optional behavior is specified. |
Use the DoNotExpandEnvironmentNames flag with the RegistryKey::GetValue(String^, Object^, RegistryValueOptions) method overload.
The following code sample creates a test key, adds a value with an embedded environment variable, and retrieves the value in both expanded and unexpanded forms.
#using <Microsoft.VisualBasic.dll> using namespace System; using namespace Microsoft::Win32; using namespace Microsoft::VisualBasic; int main() { // Delete and recreate the test key. Registry::CurrentUser->DeleteSubKey( L"RegistryValueOptionsExample", false ); RegistryKey ^ rk = Registry::CurrentUser->CreateSubKey( L"RegistryValueOptionsExample" ); // Add a value that contains an environment variable. rk->SetValue( L"ExpandValue", L"The path is %PATH%", RegistryValueKind::ExpandString ); // Retrieve the value, first without expanding the environment // variable and then expanding it. Console::WriteLine( L"Unexpanded: \"{0}\"", rk->GetValue( L"ExpandValue", L"No Value", RegistryValueOptions::DoNotExpandEnvironmentNames ) ); Console::WriteLine( L"Expanded: \"{0}\"", rk->GetValue( L"ExpandValue" ) ); return 0; } //Main
.NET Framework
Available since 2.0
Available since 2.0
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