DCB

This structure contains device specific-information. It is used at stream creation by the application media control device to deliver device-specific information to the source or target stream handlers.

 typedef struct _DCB {
   ULONG     ulDCBLen;                 /*  Control block length. */
   SZ        szDevName[MAX_SPI_NAME];  /*  Device driver name. */
 } DCB;
 
 typedef   DCB   FAR   * PDCB ;