IDvdControl2::ActivateButton
| Microsoft DirectShow 9.0 |
IDvdControl2::ActivateButton
The ActivateButton method activates the currently selected menu button.
Syntax
HRESULT ActivateButton(void);
Parameters
This method takes no parameters.
Return Values
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
Header: Declared in Strmif.h; include Dshow.h.
Library: Use Strmiids.lib.
See Also