Microsoft DirectX 8.1 (C++)

IMediaSeeking::GetPreroll

The GetPreroll method retrieves the amount of data that will be queued before the start position.

Syntax

HRESULT GetPreroll(
  LONGLONG *pllPreroll
);

Parameters

pllPreroll

[out] Pointer to a variable that receives the preroll time, in units of the current time format.

Return Value

Returns an HRESULT value. Possible values include the following.

Value Description
S_OK Success.
E_NOTIMPL Method is not supported.
E_POINTER NULL pointer argument.

Remarks

The preroll is the time prior to the start position at which nonrandom access devices, such as tape players, should start rolling.

See Also