MSVidWebDVD.SubpictureOn Property
| Microsoft DirectShow 9.0 |
MSVidWebDVD.SubpictureOn Property
This topic applies to Windows XP Service Pack 1 or later.
The SubpictureOn property sets and retrieves current subpicture state (either on or off).
Syntax
VidWebDVD .SubpictureOn As Boolean
Parameters
This property takes no parameters.
Return Values
Returns a Boolean value indicating whether the subpicture is displayed.
Error Codes
If the property fails, Err.Number may be set to one of the following values.
| Value | Description |
| E_UNEXPECTED | Unspecified error; possibly the graph has not been built. |
| VFW_E_DVD_INVALIDDOMAIN | You attempted to take the value in a domain that does not support this property. |
Remarks
This property does not affect display of closed captions. Closed captions are embedded within the video stream. DVD subpictures are transported on a separate stream.
This property is read/write with a default value of False.
If the subpicture stream has been changed with CurrentSubpictureStream, this value will automatically toggle to True.
Example
' Setting the property. VidWebDVD.SubpictureOn = True ' Returning the property. bSubOn = VidWebDVD.SubpictureOn
Valid Domains
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 |
| Sub-picture_stream_Change | DVD_DOMAIN_VideoManagerMenu DVD_DOMAIN_VideoTitleSetMenu DVD_DOMAIN_Title DVD_DOMAIN_Stop |
Requirements
Reference: Add a reference to MS Video Control 1.0 Type Library and Microsoft Tuner 1.0 Type Library.
Library: Quartz.dll.
See Also