IDvdInfo2::GetCurrentAngle method
The GetCurrentAngle method retrieves the number of available angles in the current angle block and the currently selected angle number.
Syntax
HRESULT GetCurrentAngle( [out] ULONG *pulAnglesAvailable, [out] ULONG *pulCurrentAngle );
Parameters
- pulAnglesAvailable [out]
-
Receives the number of available angles. There are up to nine angles in an angle block, numbered 1 through 9. If the value equals 1, then the DVD Navigator is not in an angle block.
- pulCurrentAngle [out]
-
Receives the current angle number.
Return value
Returns one of the following HRESULT values.
| Return code | Description |
|---|---|
|
Success. |
|
Invalid argument. |
|
DVD Navigator is not initialized or not in a valid domain. |
Remarks
Note that angle and menu button indexes are 1-based, while audio and subpicture stream indexes are 0-based. When the DVD Navigator is about to enter an angle block, it sends the application an EC_DVD_ANGLES_AVAILABLE event notification with the lParam set to 1. Applications will typically call GetCurrentAngle and IDvdControl2::SelectAngle within their event handler for EC_DVD_ANGLES_AVAILABLE.
This method is demonstrated in the DVDSample application in CAngleDlg::MakeAngleList.
Requirements
|
Minimum supported client |
Windows XP [desktop apps only] |
|---|---|
|
Minimum supported server |
Windows Server 2003 [desktop apps only] |
|
Header |
|
|
Library |
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See also
- DVD Applications
- EC_DVD_ANGLE_CHANGE
- EC_DVD_ANGLES_AVAILABLE
- Error and Success Codes
- IDvdInfo2 Interface