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IDvdControl2::ActivateButton method (strmif.h)

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]

The ActivateButton method activates the currently selected menu button.

Syntax

HRESULT ActivateButton();

Return value

Returns one of the following values.

Return code Description
S_OK
 Success.
VFW_E_DVD_INVALIDDOMAIN
 The DVD Navigator is in an invalid domain.
VFW_E_DVD_OPERATION_INHIBITED
 UOP control prohibits the DVD Navigator from entering a paused state.
VFW_E_DVD_NO_BUTTON
 No button is selected.

Remarks

An application might or might not have four relative buttons on the side of the video display to represent the buttons on a physical remote control. These enable a user to select menu buttons but not activate them. A fifth button is required to activate the selected button. Call ActivateButton in response to a mouse click on the fifth button.

The following table shows the Annex J command name to which this method name corresponds, and the domains in which this method is valid.

Annex J Command Name Valid Domains
Button_Activate
  • DVD_DOMAIN_VideoManagerMenu
  • DVD_DOMAIN_VideoTitleSetMenu
  • DVD_DOMAIN_Title

Requirements

Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header strmif.h (include Dshow.h)
Library Strmiids.lib

See also

DVD Applications

Error and Success Codes

IDvdControl2 Interface

Working With DVD Menus