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| Microsoft DirectShow 9.0 |
DVD Commands
The DVD navigation and playback commands are defined in a section of the DVD specification named Annex J, which is why the DirectShow documentation often refers to "Annex J commands." The names given in Annex J are not always very intuitive, however, so DirectShow uses names that may be easier to understand. Table 1 lists the Annex J commands and their DirectShow equivalents.
Table 1. DVD Commands
| Annex J command | Description | IDvdControl2 method |
| Title_Play | Play a title. | PlayTitle |
| PTT_Play | Play a chapter in a title. | PlayChapterInTitle |
| Time_Play | Play a title starting from a specified time. | PlayAtTimeInTitle |
| Stop | Stop playback. | Stop |
| GoUp | Return from a submenu to the parent menu. | ReturnFromSubmenu |
| Time_Search | Play at a specified time within the current title. | PlayAtTime |
| PTT_Search | Play a chapter within the current title. | PlayChapter |
| PrevPG_Search | Go to the start of the previous chapter and resume playback. | PlayPrevChapter |
| TopPG_Search | Go to the start of the current chapter and resume playback. | ReplayChapter |
| NextPG_Search | Go to the start of the next chapter and resume playback. | PlayNextChapter |
| Forward_Scan | Play forward at a specified playback rate. The default playback rate is 1.0. | PlayForwards |
| Backward_Scan | Play backward at a specified playback rate. | PlayBackwards |
| Menu_Call | Show a menu. | ShowMenu |
| Resume | Return from a menu and resume playback. | Resume |
| Upper_Button_Select, Lower_Button_Select, Left_Button_Select, Right_Button_Select | Select a button whose position is relative to the currently selected button. | SelectButton |
| Button_Activate | Activate the selected button. | ActivateButton |
| Button_Select_and_Activate | Select and activate a button. | SelectAndActivateButton |
| Still_Off | Resume playback when displaying a still image. | StillOff |
| Pause_On | Pause playback. | Pause |
| Pause_Off | Resume playback from the paused state. | Pause |
| Menu_Language_Select | Select the language for menus. | SelectDefaultMenuLanguage |
| Audio_Stream_Change | Set the audio stream. | SelectAudioStream |
| Sub-picture_Stream_Change | Set the subpicture stream; enable or disable subpicture display. | SelectSubpictureStream |
| Angle_Change | Set the camera angle. | SelectAngle |
| Parental_Level_Select | Set the parental level. | SelectParentalLevel |
| Parental_Country_Select | Set the country/region for parental management. | SelectParentalCountry |
| Karaoke_Audio_Presentation_Mode_Change | Set the audio mixing mode for karaoke. | SelectKaraokeAudioPresentationMode |
| Video_Presentation_Mode_Change | Set the aspect ratio mode to widescreen, letterbox, or pan scan. | SelectVideoModePreference |
See Also