This example allocates CdvdBurnerGrabber object, gets all (current and top supported) read and write speeds and destroys the device object after it's not needed any more.
// Somewhere in the data region PVOID l__PVOID__CdvdBurnerGrabber; EXCEPTION_NUMBER l__EXCEPTION_NUMBER; ULONG l__ULONG__SystemError; CHAR l__CHAR__ExceptionText[ 1024 ]; CDB_FAILURE_INFORMATION l__CDB_FAILURE_INFORMATION; ULONG l__ULONG__CurrentReadSpeed; ULONG l__ULONG__MaximumReadSpeed; ULONG l__ULONG__CurrentWriteSpeed; ULONG l__ULONG__MaximumWriteSpeed; // Prepare exception text buffer RtlZeroMemory( &l__CHAR__ExceptionText, sizeof( l__CHAR__ExceptionText ) ); // Prepare CDB failure information RtlZeroMemory( &l__CDB_FAILURE_INFORMATION, sizeof( l__CDB_FAILURE_INFORMATION ) ); // Try to create CdvdBurnerGrabber on 0:0:4:0 with 32MB of cache l__EXCEPTION_NUMBER = StarBurn_CdvdBurnerGrabber_Create( &l__PVOID__CdvdBurnerGrabber, ( PCHAR )( &l__CHAR__ExceptionText ), sizeof( l__CHAR__ExceptionText ), &l__ULONG__SystemError, &l__CDB_FAILURE_INFORMATION, ( PCALLBACK )( StarBurn_Callback ), 0, 0, 4, 0, 32 ); // Check for correct reply if ( l__EXCEPTION_NUMBER != EN_SUCCESS ) { // Handle error here... } // Try to get current and top supported CD/DVD/Blu-Ray/HD-DVD read/write speeds on the device l__EXCEPTION_NUMBER = StarBurn_CdvdBurnerGrabber_GetSpeeds( l__PVOID__CdvdBurnerGrabber, ( PCHAR )( &l__CHAR__ExceptionText ), sizeof( l__CHAR__ExceptionText ), &l__ULONG__SystemError, &l__CDB_FAILURE_INFORMATION, &l__ULONG__CurrentReadSpeed, &l__ULONG__MaximumReadSpeed, &l__ULONG__CurrentWriteSpeed, &l__ULONG__MaximumWriteSpeed ); // Check for correct reply if ( l__EXCEPTION_NUMBER != EN_SUCCESS ) { // Handle error here... } // Do something with CdvdBurnerGrabber device object and it's speeds here... // Destroy the CdvdBurnerGrabber StarBurn_Destroy( &l__PVOID__CdvdBurnerGrabber ); // Just check for pointer (paranoid?) if ( l__PVOID__CdvdBurnerGrabber != NULL ) { // Handle error here... }