GetEnvironmentW

Returns the revision number similar to the call GetRevision[W]. The environment variables will show known environment variables and if they are set, for example environment variables ABC known and unset and DEF as well as GHI known and set:
    environmentVariables = "ABC:F;DEF:T;GHI:T"
Development variables are depending on the build environment As an example in windows systems where Visual Studio is used:
    developmentVariables = "...."

Syntax

public const string enginedll = @"engine.dll";

[DllImport(enginedll, EntryPoint = "GetEnvironmentW")]
public static extern Int64 GetEnvironmentW(out IntPtr environmentVariables, out IntPtr developmentVariables);    

Property environmentVariables

Size: 64 bit / 8 byte (reference)
The environment variables will show known environment variables and if they are set, for example environment variables ABC known and unset and DEF as well as GHI known and set: environmentVariables = "ABC:F;DEF:T;GHI:T".

Property developmentVariables

Size: 64 bit / 8 byte (reference)
Development variables are depending on the build environment.