注册表中路径的写法
实际上，因为用户模式下的应用程序总是由某个 “ 当前用户 ” 打开的，因此在用户模 式
下可以直接访问 HKEY_CLASSES_ROOT 和 HKEY_CURRENT_USER ，但工作在内核模式
下的驱动程序不属于任何一个用户，因此不能直接访问这两个根键。
如果对象类型为注册表键，则对象名字应该起始于“\Registry”。例如：
键 名称
HKEY_USER "\Registry\User"
HKEY_LOCAL_MACHINE "\Registry\Machine"
Specifies whether Path is an absolute registry path or is relative to a predefined path as one of the following.
| Value | Meaning |
|---|---|
|
RTL_REGISTRY_ABSOLUTE |
Path is an absolute registry path. |
|
RTL_REGISTRY_SERVICES |
Path is relative to \Registry\Machine\System\CurrentControlSet\Services. |
|
RTL_REGISTRY_CONTROL |
Path is relative to \Registry\Machine\System\CurrentControlSet\Control. |
|
RTL_REGISTRY_WINDOWS_NT |
Path is relative to \Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion. |
|
RTL_REGISTRY_DEVICEMAP |
Path is relative to \Registry\Machine\Hardware\DeviceMap. |
|
RTL_REGISTRY_USER |
Path is relative to \Registry\User\CurrentUser. (For a system process, this is \Users\.Default.) |
|
RTL_REGISTRY_OPTIONAL |
Specifies that the key referenced by this parameter and the Path parameter are optional. |
|
RTL_REGISTRY_HANDLE |
Specifies that the Path parameter is actually a registry handle to use. This value is optional. |