IStreamBufferConfigure::GetBackingFileCount

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Microsoft DirectShow 9.0

IStreamBufferConfigure::GetBackingFileCount

This topic applies only to Windows XP Service Pack 1 or later.

The GetBackingFileCount method retrieves the maximum and minimum number of backing files.

Syntax

  HRESULT GetBackingFileCount(
  DWORD*  pdwMin,
  DWORD*  pdwMax
);

Parameters

pdwMin

[out]  Pointer to a variable that receives the backing file minimum.

pdwMax

[out]  Pointer to a variable that receives the backing file maximum.

Return Values

Returns an HRESULT. Possible values include those in the following table.

Value Description
S_OK The method succeeded.

Remarks

If the reader lags behind the writer by more than pdwMin files, the writer starts to send STREAMBUFFER_EC_CONTENT_BECOMING_STALE events. If the reader lags behind the writer by more than pdwMax files, the writer begins to overwrite files and sends an STREAMBUFFER_EC_STALE_FILE_DELETED event.

Requirements

Header: Include Sbe.h.

See Also