IDvdControl::LowerButtonSelect method (strmif.h)
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]
Syntax
HRESULT LowerButtonSelect();
Return value
Returns an HRESULT value.
Remarks
On physical or electronic remote control devices, there is often a group of four directional buttons used for certain types of operations (such as menu navigation). This method tells DirectShow that something (the user, probably) triggered the lower directional button.
Selecting a DVD button simply highlights the button but does not activate the button. Selecting is the Windows equivalent of tabbing to a button but not pressing the SPACEBAR or ENTER key. Activating is the Windows equivalent of pressing the SPACEBAR or ENTER key after tabbing to a button.
This method returns an error unless the domain is DVD_DOMAIN_VideoManagerMenu, DVD_DOMAIN_VideoTitleSetMenu, or DVD_DOMAIN_Title. For more information, see DVD_DOMAIN.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |