IltmmDVDControl::get_DVDTextNumberOfLanguages
#include "ltmm.h"
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C Syntax |
HRESULT IltmmDVDControl__get_DVDTextNumberOfLanguages(pDVD, pLanguages) |
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C++ Syntax |
HRESULT get_DVDTextNumberOfLanguages(pLanguages) |
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IltmmDVDControl *pDVD; |
/* pointer to an interface */ |
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long *pLanguages; |
/* pointer to a variable */ |
Retrieves the number of text languages for the current DVD or disc side.
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Parameter |
Description |
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pDVD |
Pointer to an IltmmDVDControl interface. |
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pLanguages |
Pointer to a variable that receives the number of text languages. |
Returns
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S_OK |
The function ran successfully. |
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<> S_OK |
An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation. |
Comments
The value referenced by pLanguages represents the number of text languages / language blocks for the current DVD or disc side. This value determines the possible values for the Index parameters of the following functions:
IltmmDVDControl::GetDVDTextLanguageLCID
IltmmDVDControl::GetDVDTextNumberOfStrings
IltmmDVDControl::GetDVDTextString
IltmmDVDControl::GetDVDTextStringType
For example, if pLanguages is updated with the value 4, there are four text languages / language blocks. Since the Index parameter of the functions listed above is zero-based, the possible values for the Index parameter is 0 – 3.
For more detailed information, refer to the Microsoft documentation for IDvdInfo2::GetDVDTextNumberOfLanguages at http://msdn.microsoft.com/archive/default.asp?url=/library/en-us/directshow/htm/idvdinfo2getdvdtextnumberoflanguages.asp.
Required DLLs and Libraries
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LTMM For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
Example
For a C example, refer to IltmmDVDControl::GetButtonAtPosition Example for C.
For a C++ example, refer to IltmmDVDControl::GetButtonAtPosition Example for C++.