tracelines and solids

[Nahuel]

hello forum. I'm trying to get that the player send tracelines to impact on some functions with solid_trigger and send me information about the function. but apparently tracelines can not collide with solid_trigger brushes. there is any way that traceline impacts a solid_trigger entity?
what alternatives can I use? I am using darkplaces engine

[Spike]

DP/FTE:
trigger.solid = SOLID_BSP;
traceline(start, end, 0, self);
trigger.solid = SOLID_TRIGGER;
(can still hit other solids. trigger must be known in advance)

FTE1:
traceline(start, end, 16, self);
(hits *only* triggers)

FTE2:
traceline(start, end, 32, self);
(hits anything including triggers)

FTE3:
traceline(start, end, 256, trigger);
(hits only the specified entity, regardless of trigger/etc)

Any Engine:
trigger.solid = SOLID_BSP;
setorigin(trigger, trigger.origin);
traceline(start, end, 0, self);
trigger.solid = SOLID_TRIGGER;
setorigin(trigger, trigger.origin);
(can still hit other solids. trigger must be known in advance)

[Cobalt]