IDvdControl::ButtonSelectAndActivate 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 ButtonSelectAndActivate(
[in] ULONG ulButton
);
Parameters
[in] ulButton
Value that specifies the button that will be selected and activated, which must be from 1 through 36.
Return value
Returns an HRESULT value.
Remarks
Electronic remote control devices typically have a number of buttons that activate various functions of a DVD playback unit. Typically, you call this method when a user clicks a button on the control device; DirectShow then indicates that the button was selected (by playing a sound or changing a graphic, for example) and calls methods appropriate to which button was selected, such as ButtonActivate.
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) |