| Microsoft DirectX 9.0 |
The GetNumberOfChapters method retrieves the number of chapters in a given title.
Syntax
HRESULT GetNumberOfChapters(
ULONG ulTitle,
ULONG *pulNumOfChapters
);
Parameters
ulTitle
[in] Variable of type ULONG that specifies the title.
pulNumOfChapters
[out] Pointer to a variable of type ULONG that receives the number of chapters for the specified title.
Return Values
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.
See Also