enum OsnapMask { kOsMaskEnd = 0x000001, kOsMaskMid = 0x000002, kOsMaskCen = 0x000004, kOsMaskNode = 0x000008, kOsMaskQuad = 0x000010, kOsMaskInt = 0x000020, kOsMaskIns = 0x000040, kOsMaskPerp = 0x000080, kOsMaskTan = 0x000100, kOsMaskNear = 0x000200, kOsMaskQuick = 0x000400, kOsMaskApint = 0x000800, kOsMaskImmediate = 0x010000, kOsMaskAllowTan = 0x020000, kOsMaskDisablePerp = 0x040000, kOsMaskRelCartesian = 0x080000, kOsMaskRelPolar = 0x100000, kOsMaskNoneOverride = 0x200000 };