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WAVEFILTER structure (mmreg.h)

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The WAVEFILTER structure defines a filter for waveform-audio data. Only filter information common to all waveform-audio data filters is included in this structure. For filters that require additional information, this structure is included as the first member in another structure along with the additional information.

Syntax

typedef struct wavefilter_tag {
  DWORD cbStruct;
  DWORD dwFilterTag;
  DWORD fdwFilter;
  DWORD dwReserved[5];
} WAVEFILTER;

Members

cbStruct

Size, in bytes, of the WAVEFILTER structure. The size specified in this member must be large enough to contain the base WAVEFILTER structure.

dwFilterTag

Waveform-audio filter type. Filter tags are registered with Microsoft Corporation for various filter algorithms.

fdwFilter

Flags for the dwFilterTag member. The flags defined for this member are universal to all filters. Currently, no flags are defined.

dwReserved[5]

Reserved for system use; should not be examined or modified by an application.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Header mmreg.h

See also

Waveform Audio

Waveform Structures