OnBegin
Instructs the library to continue progress of an operation.
HRESULT OnBegin();
None.
The following table describes possible return values.
Return Value | Description |
---|---|
S_OK |
Indicates success. The operation continues. |
E_ABORT |
The client has requested to cancel the operation. For example, if the user clicks Cancel, the client returns this code. |
This method is used in callbacks for various tracing actions, such as starting or stopping a trace. It is called just before the action begins.