IPropertyNotifySink::OnChanged
Notifies a
sink that the [bindable] property specified by dispID has
changed. If dispID is DISPID_UNKNOWN, then multiple properties have
changed together. The client (owner of the sink) should then retrieve the
current value of each property of interest from the object that generated the
notification.
HRESULT
OnChanged(
|
DISPID dispID |
//Dispatch identifier of the property that changed |
|
); |
|
Parameters
dispID
[in] Dispatch
identifier of the property that changed, or DISPID_UNKNOWN if multiple
properties have changed.
Return Values
S_OK
This return
value is returned in all cases.
Remarks
S_OK is
returned in all cases even when the sink does not need [bindable] properties or
when some other failure has occurred. In short, the calling object simply sends
the notification and cannot attempt to use an error code (such as E_NOTIMPL) to
determine whether to not send the notification in the future. Such semantics
are not part of this interface.
See Also