How to read the Dwg_Entity_LINE: layer and ltype?

[iisaxin]

Hello everyone, thanks for the author's contribution, let me have the opportunity to use libredwg in my work, now I encounter a problem, such as I read the Dwg_Entity_LINE, insert points I can easily get, but for example, how to obtain the "layer" and "ltype" but no idea, do you have any relevant routines? thanks

for (i = 0; i < dwg.num_objects; i++)
{
switch (dwg.object[i].fixedtype)
{
case DWG_TYPE_LINE:
{line = dwg.object[i].tio.entity->tio.LINE;
color=dwg.object[i].tio.entity->color;
//layer=??
//ltype=??

[rurban]

Please move that to Discussions. Not an issue