IDiscFormat2TrackAtOnce::get_NumberOfExistingTracks method (imapi2.h)
Retrieves the number of existing audio tracks on the media.
Syntax
HRESULT get_NumberOfExistingTracks(
[out] LONG *value
);
Parameters
[out] value
Number of completed tracks written to disc, not including the track currently being added.
Return value
S_OK is returned on success, but other success codes may be returned as a result of implementation. The following error codes are commonly returned on operation failure, but do not represent the only possible error values:
| Return code | Description |
|---|---|
|
Pointer is not valid.
Value: 0x80004003 |
|
The media is not prepared (IDiscFormat2TrackAtOnce::PrepareMedia has not been called).
Value: 0xC0AA0502 |
|
A write operation is in progress.
Value: 0xC0AA0500 |
Remarks
The value is zero if:
- The media is blank
- You call this method outside a writing session
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista, Windows XP with SP2 [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | imapi2.h |
See also
IDiscFormat2TrackAtOnce::AddAudioTrack