| DirectX SDK | 
The RGBA_TORGB macro creates an RGB D3DCOLOR value from a supplied RGBA D3DCOLOR value by stripping off the alpha component of the color.
RGBA_TORGB(rgba) ((D3DCOLOR) ((rgba) & 0xffffff))
Returns the RGB 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.
  Windows CE: Unsupported.
  Version: Requires DirectX 2.0 or later.
  Header: Declared in d3dtypes.h.