uses TRegistry;
function SetGlobalEnvironment(const Name, Value: string; const User: Boolean = True): Boolean; resourcestring REG_MACHINE_LOCATION = 'System/CurrentControlSet/Control/Session Manager/Environment'; REG_USER_LOCATION = 'Environment'; begin with TRegistry.Create do try if User then { User Environment Variable } Result := OpenKey(REG_USER_LOCATION, True) else { System Environment Variable } begin RootKey := HKEY_LOCAL_MACHINE; Result := OpenKey(REG_MACHINE_LOCATION, True); end; if Result then begin WriteString(Name, Value); { Write Registry for Global Environment } { Update Current Process Environment Variable } SetEnvironmentVariable(PChar(Name), PChar(Value)); { Send Message To All Top Window for Refresh } SendMessage(HWND_BROADCAST, WM_SETTINGCHANGE, 0, Integer(PChar('Environment'))); end; finally Free; end; end; { SetGlobalEnvironment }
