^{DMUS_EXTENSIONCHUNK}

The DMUS_EXTENSIONCHUNK structure describes a DLS extension chunk. All extensions to the DLS file format that are unknown to DirectMusic are downloaded in this variable-size chunk.

Syntax

typedef struct {
  ULONG  cbSize;
  ULONG  ulNextExtCkIdx;
  FOURCC ExtCkID;
  BYTE byExtCk[ ];
} DMUS_EXTENSIONCHUNK;

Members

cbSize

Size of chunk.

ulNextExtCkIdx

Index, in the DMUS_OFFSETTABLE structure, of the next extension chunk. If 0, there are no more third-party extension chunks.

ExtCkID

Chunk identifier.

byExtCk[ ]

Data.

Requirements

  Header: Declared in dmdls.h.

See Also

• DLS Structures