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SetServiceStatus info  Overview  Group

The SetServiceStatus function updates the service control managerís status information for the calling service.

BOOL SetServiceStatus(

    SERVICE_STATUS_HANDLE hServiceStatus~,

// service status handle

    LPSERVICE_STATUS lpServiceStatus 

// address of status structure



Specifies a handle to the service control managerís status information structure for the current service. This handle is returned by the RegisterServiceCtrlHandler function.
Points to the SERVICE_STATUS structure the contains the latest status information for the calling service.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.


The following error codes can be set by the service control manager. Other error codes can be set by the registry functions that are called by the service control manager.




The specified handle is invalid.


The specified service status structure is invalid.


A ServiceMain function first calls the RegisterServiceCtrlHandler function to get the serviceís SERVICE_STATUS_HANDLE. Then it immediately calls the SetServiceStatus function to notify the service control manager of its SERVICE_START_PENDING status.

When a service receives a control request, the serviceís Handler function must call SetServiceStatus, even if the serviceís status did not change. A service can also use this function at any time and by any thread of the service to notify the service control manager of status changes. Examples of such unsolicited status updates include:

A service can call this function only after it has called RegisterServiceCtrlHandler to get a service status handle.

See Also

Handler, RegisterServiceCtrlHandler, SERVICE_STATUS, ServiceMain, SetServiceBits 


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