IDvdInfo2::GetNumberOfChapters method (strmif.h)

Article
02/22/2024

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The GetNumberOfChapters method retrieves the number of chapters in a given title.

Syntax

HRESULT GetNumberOfChapters(
  [in]  ULONG ulTitle,
  [out] ULONG *pulNumOfChapters
);

Parameters

[in] ulTitle

Specifies the title.

[out] pulNumOfChapters

Receives the number of chapters for the specified title.

Return value

Returns one of the following HRESULT values.

Return code	Description
S_OK	Success.
E_INVALIDARG	Invalid argument.
E_POINTER	A parameter is invalid.
E_UNEXPECTED	The DVD Navigator is not initialized.

Remarks

Call this method to get the number of chapters before calling IDvdControl2::PlayChapter, to ensure that you specify a valid chapter number.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	strmif.h (include Dshow.h)
Library	Strmiids.lib

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