extern XXX_ERROR XXX_API re_fillimage(ReImage *image, long color);
imagecolor0 = Black and 1 = White0x followed by 2 characters of
0 bis F, z.B.0x00 = Black to 0xFF = White0x followed by 6 characters of
0 to F, e.g.0x000000 = Black, 0xFFFFFF = White,0xFF0000 = Red, 0x00FF00 = Green, 0x0000FF = Blue, 0xFFFF00 = Yellow
RE_SUCCESS or XXX error type.
This function fills the rectangle image->subimage with the given color.
If image->subimage is not set (={0,0,0,0}), then the full image will be set to the given color.