i mean: for example you have a problem 'how do i create scrollbars two squares wide' (not a real problem, can't think of something now)

if you work with qt for example so these days you ask google/stackoverflow/qtforum and you have multitude of responses if it's a common problem and sometimes you have whole solutions ready to copy&paste.

when you work with TV and ask google - you usually get... not much. so you have to take the longer route: study the doc/books (you mentioned), study the code, examples... or be friend with the author of this library or those two or three people who actively use this library these days ;)

-- edit: btw those books (there's a c++ one as well) you mention are good, but, sadly, no book is detailed enough when you have very specific problem :)