Environment::GetEnvironmentVariables Method ()

.NET Framework (current version)

Retrieves all environment variable names and their values from the current process.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

Syntax

public:
static IDictionary^ GetEnvironmentVariables()

Return Value

Type: System.Collections::IDictionary^

A dictionary that contains all environment variable names and their values; otherwise, an empty dictionary if no environment variables are found.

Exceptions

Exception	Condition
SecurityException	The caller does not have the required permission to perform this operation.
OutOfMemoryException	The buffer is out of memory.

Remarks

The names and values for the environment variables are stored as key-value pairs in the returned IDictionary.

Examples

The following example demonstrates the GetEnvironmentVariables method.

C++

using namespace System;
using namespace System::Collections;

int main()
{
   Console::WriteLine( "GetEnvironmentVariables: " );
   for each (DictionaryEntry^ de in Environment::GetEnvironmentVariables())
      Console::WriteLine( " {0} = {1}", de->Key, de->Value );
}
// Output from the example is not shown, since it is:
//    Lengthy.
//    Specific to the machine on which the example is run.
//    May reveal information that should remain secure.

Security

EnvironmentPermission

for the ability to read the names and values of environment variables. Associated enumeration: EnvironmentPermissionAccess::Read

Version Information

Universal Windows Platform
Available since 10
.NET Framework
Available since 1.1