The D3DRGB macro initializes a color with the supplied RGB values.
D3DRGB(r, g, b) \
(0xff000000L | ( ((long)((r) * 255)) << 16) | \
(((long)((g) * 255)) << 8) | (long)((b) * 255))
The macros returns the D3DCOLOR value corresponding to the supplied RGB values.
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.