Can I change the height of the vim preview window?

Question

I am using Eclimd to complete. it generates a lot of useful information about the function, but in the preview window in 1 line it looks messy. (the same window uses omni termination)

So:

• Can I change the height of the default preview window?
• Make preview pop-up instead of preview?

Answer 1

I ran into problems with the "preview", so I came up with the following work:

set previewheight=50
au BufEnter ?* call PreviewHeightWorkAround()
func PreviewHeightWorkAround()
    if &previewwindow
        exec 'setlocal winheight='.&previewheight
    endif
endfunc

Answer 2

, 'previewheight'.