IDvdControl2::SelectAtPosition method (strmif.h)

Article
07/27/2023

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SelectAtPosition method highlights the menu button under the mouse pointer position.

Syntax

HRESULT SelectAtPosition(
  [in] POINT point
);

Parameters

[in] point

Point on the screen, in screen pixel coordinates.

Return value

Returns one of the following values.

Return code	Description
S_OK	Success.
VFW_E_DVD_NO_BUTTON	No button is present at the mouse pointer position.
VFW_E_DVD_INVALIDDOMAIN	The DVD Navigator is in the Stop domain.

Remarks

Note that angle and menu button indexes are one-based while audio stream and subpicture stream indexes are zero-based.

Call IDvdControl2::ActivateButton in response to a mouse click when the pointer is over a menu 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.

This method is demonstrated in the DVDSample application in CDvdCore::OnMouseEvent.

Annex J Command Name	Valid Domains
None	DVD_DOMAIN_VideoManagerMenu DVD_DOMAIN_VideoTitleSetMenu DVD_DOMAIN_Title DVD_DOMAIN_FirstPlay

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