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IltmmDVDControl::get_DVDTextNumberOfLanguages

#include "ltmm.h"

C Syntax	HRESULT IltmmDVDControl_get_DVDTextNumberOfLanguages(pDVD, pVal)
C++ Syntax	HRESULT get_DVDTextNumberOfLanguages(pVal)

IltmmDVDControl *pDVD;	pointer to an interface
long *pVal;	pointer to a variable

Retrieves the number of text languages for the current DVD or disc side.

Parameter	Description
pDVD	Pointer to an IltmmDVDControl interface.
pVal	Pointer to a variable that receives the number of text languages.

Returns

S_OK	The function ran successfully.
<> 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.

Required DLLs and Libraries

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.

Platforms

Win32, x64

Example

For a C example, refer to IltmmDVDControl::GetButtonAtPosition Example for C.

For a C++ example, refer to IltmmDVDControl::GetButtonAtPosition Example for C++.

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Elements:	IltmmDVDControl interface, IltmmDVDControl::GetDVDTextLanguageLCID, IltmmDVDControl::GetDVDTextNumberOfStrings, IltmmDVDControl::GetDVDTextString, IltmmDVDControl::GetDVDTextStringType
Topics:	Multimedia Function Group