The RGB_TORGBA macro creates an RGBA color from a supplied RGB color.
RGB_TORGBA(rgb)    ((D3DCOLOR) ((rgb) | 0xff000000)) 
 Returns the RGBA color.
  Windows NT/2000: Requires Windows NT 4.0 SP3 or later.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in d3dtypes.h.