|Microsoft DirectX 9.0|
The GetCurrentDomain method retrieves the domain in which the DVD Navigator is currently located.
HRESULT GetCurrentDomain( DVD_DOMAIN *pDomain );
[out] Pointer to a variable of type DVD_DOMAIN that receives the current domain.
Returns one of the following HRESULT values.
You can use this method to test whether the DVD Navigator is finished playing in a particular title domain. An application doesn't have to test for the current domain before calling an IDvdControl2 method such as PlayTitle, PlayForwards, and so on. The DVD Navigator tests for the domain and simply does nothing, returning VFW_E_DVD_INVALIDDOMAIN, if the current command is invalid for the domain.