Show BLOB (open a pdf) from Report in a new window

I use BLOB Support in Apex 3.2/4.0 (MIMETYPE..) at an IR:
http://download.oracle.com/docs/cd/E14373_01/appdev.32/e11838/advnc.htm#sthref2199
Because my BLOB (pdf,...) should be opened without asking for download or open I use content_position INLINE.
That works fine, but I would like to get the opened document in a NEW window , not the same window ??
( If I klick the download with "open in a new window" it works fine)
Any idea?
I remembered Link-Attribute target="_blank" (that works fine)
So my first idea was
(1) defining the BLOB column as a Link (type=URL) call APEX_UTIL.GET_BLOB_FILE_SRC and use Link-Attribute target="_blank".
But APEX_UTIL.GET_BLOB_FILE_SRC needs an ITEM ... and what about MIMETYPE...
=>It will not work.
My second idea is
(2) Link from the report to another page having a hidden Item for the linked ID and
create an hidden ITEM (having the BLOB attributes) like described at Dimitrie's BLOG
http://dgielis.blogspot.com/2009/05/using-apexutilgetblobfilesrc-on-public.html
At this page a process on load before header call APEX_UTIL.GET_BLOB_FILE_SRC with these items as parameters
=> Seems to complicated
Any better idea?

Hi,
You know I have to thank you for the solution as by asking your question you provided me with a way to solve my problem .....
As double clicking a pdf file when the application is open with no open document works as I want it to (i.e. showing the new document in the existing acrobat window), so I decided to try out a plain vanilla shell instruction in vba instead of the AVDOC.Open statement ... and ....although not very programmatically aesthetic .... it works.
rgds

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