MSVidWebDVD.SubpictureStreamsAvailable Property
| Microsoft DirectShow 9.0 |
MSVidWebDVD.SubpictureStreamsAvailable Property
This topic applies to Windows XP Service Pack 1 or later.
The SubpictureStreamsAvailable property retrieves the number of subpicture streams available in the current title.
Syntax
VidWebDVD .SubpictureStreamsAvailable As Long
Parameters
This property takes no parameters.
Return Values
Returns a Long indicating the number of subpicture streams available.
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 is read-only with no default value.
Use this method to discover upper boundaries when querying each stream for its language attribute. When using this value, remember that stream numbering is zero-based.
Example
' Returning the property. lSubStreamsMax = VidWebDVD.SubpictureStreamsAvailable
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