Microsoft DirectX 9.0

GetSPRM Method

The GetSPRM method retrieves the specified system parameter register.


[ iSPRM = ] MSWebDVD.GetSPRM(iIndex);



Specifies the register whose value you want to retrieve as an Integer. The Integer must range from 0 through 23.

Return Values

Returns an integer value representing the contents of the specified register.


The disc controls system parameter registers (SPRMs). A player application doesn't need to access these registers for any standard navigation functionality. SPRMs represent the status of the player. Each one has a meaning, set by user preferences, disc commands, and other occurrences that an application has no direct control over. An application can read these registers but cannot write to them. To use these registers effectively, you will probably need a more detailed knowledge of the DVD navigation commands than is provided in this documentation. The following table shows the contents of each register. For more detailed information on the register contents, see IDvdInfo2::GetAllSPRMs

Register Contents
0 Menu language code
1 Audio stream number
2 Subpicture stream number
3 Current angle number
4 Current title number
5 Title number
6 PGC number
7 Current chapter number (PTT)
8 Highlighted button number
9 Navigation timer
10 PGC jump for nav. timer
11 Karaoke audio presentation mode
12 PML country/region code
13 PML
14 Video setting
15 Audio capability
16 Audio language
17 Audio language extension
18 Subpicture language
19 Subpicture language extension
20 Player region code
21 Reserved
22 Reserved
23 Reserved

See Also