The RGB_GETBLUE macro retrieves the blue component of a D3DCOLOR value.
RGB_GETBLUE(rgb) ((rgb) & 0xff)
Returns the blue component.
Windows NT: Use version 4.0 or later.
Windows: Use Windows 95 or later. Available as a redistributable for Windows 95.
Windows CE: Unsupported.
Header: Declared in d3dtypes.h.