EC_DVD_VALID_UOPS_CHANGE

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Signals that the available set of IDvdControl2 interface methods has changed.

Parameters

lParam1

DWORD value that contains a combination of zero or more flags from the VALID_UOP_FLAG enumeration. The bits indicate which IDvdControl2 commands were explicitly disabled by the DVD disc.

lParam2

Zero.

Remarks

This event indicates only which operations are explicitly disabled by the content on the DVD disc. It does not guarantee that it is valid to call methods that are not disabled. For example, if no buttons are present, the IDvdControl2::ActivateButton method won't work, even though the method is not explicitly disabled.

This event is raised in all domains.

Requirements

See also

DVD Applications

DVD Event Notification Codes

Event Notification in DirectShow