add: if (!oldFontEffect.Use)   oldFontEffect.to = oldFontEffect.from = 0;  return oldFontEffect;
context: void SetContextFontEffect (BYTE type, DWORD from, DWORD to){	if (from == to)		FontEffect.Use = 0;	else	{		FontEffect.Use = 1;		FontEffect.from = from;		FontEffect.to = to;		FontEffect.type = type;	}}