BCryptRegisterConfigChangeNotify function (bcrypt.h)
[BCryptRegisterConfigChangeNotify is deprecated beginning with Windows 10.]
The BCryptRegisterConfigChangeNotify(HANDLE*) function creates a user mode CNG configuration change event handler.
Syntax
NTSTATUS BCryptRegisterConfigChangeNotify(
[out] PRKEVENT pEvent
);
Parameters
[out] pEvent
The address of a HANDLE variable that receives the event handle. Use one of the Wait Functions, such as WaitForSingleObject, to determine when the event has been signaled. The event is unnamed and must be a manual-reset event. The event is signaled when any CNG configuration data has changed.
This handle must be passed to the BCryptUnregisterConfigChangeNotify(HANDLE) function to remove the event notification.
Return value
Returns a status code that indicates the success or failure of the function.
Possible return codes include, but are not limited to, the following.
| Return code | Description |
|---|---|
|
The function was successful. |
|
The phEvent parameter is not valid. |
|
A memory allocation failure occurred. |
Remarks
The handle returned in the variable pointed to by the phEvent parameter will be signaled when a change to the CNG configuration occurs.
BCryptRegisterConfigChangeNotify(HANDLE*) can be called only in user mode. Code executing in kernel mode must call BCryptRegisterConfigChangeNotify(PRKEVENT).
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | bcrypt.h |
| Library | Bcrypt.lib |
| DLL | Bcrypt.dll |