if i build a room Inside a magma pipe will the room flood with magma when the magma fills to its level?
If it's sealed, top and bottom, no. If the bottom is open... Not sure. If the top is open and the entire magma pipe isn't covered, it'll get filled as magma slops over the sides. Magma in a magma pipe appears to spawn in "beams" rising straight up from the magma flow to up to 3 tiles above the highest magma level or the original magma top. This means that emptied pipes will occasionally get columns 3 z-levels high of 7/7 magma squares, which then of course rapidly collapse because they're made of liquid.
These beams, however, are blocked by most everything, so a room that is sealed on all sides won't flood, and if you seal the entire pipe at any level with floors, bridges, etc. the magma won't fill over that level until the blockage is gone.
How do you look at combat details and wounds in more depth? I read on the forums where players describe combat fairly intricately but I have no details in my game I just see the outcome of either a dead dorf or a dead gobbo/kobold etc. I know how to look at what parts are wounded by using 'v' then 'w' on a character but is there a more detailed screen? Basically I would like to know more about whats happening with my soldiers.
In Adventure Mode, there are much, much more detailed combat and wound reports, which are the ones you usually see. With Dwarf Companion, you can also sort of turn these on in Fortress Mode, though it's quite buggy and generally more trouble than it's worth. Specifically, the names of the creatures involved are never displayed, so while you can tell what's happening you can't tell who it's happening to, and it does it in the announcements line so you get dozens of lines of announcement spam and can't really follow it in real-time.
Real combat reports are yet another feature that is coming in the next version, which should be out any minute/hour/day/
week/month/year (choose appropriate for your preferred -mism) now.
Many people also use their imaginations to make more detailed combat reports. If you're capable of doing such a thing yourself, more power to you