GUI pictures in CMYK

[zuzu_kuc]

Hi,
in this moment AHK is not able to show tif picture in GUI if this picture is in CMYK and have transparency.
It would by nice to have this option natively in AHK.
Thanks
Link to sample file (NAS Synology) here:
http://gofile.me/4PXGD/JqFQqUnAn

[Delta Pythagorean]

My best guess with this is to use GDI+ to import the tif file as a bitmap and then print as CMYK.

[zuzu_kuc]

i want to create a "real time" portfolio with some description. User will input ID of piture like 458712, AHK will loop all files in all subfolders and show pictures which contains this ID . this can be 5-50 pictures (each can have 40-500 mb size) and loop have to go thru 50 000 files. so convert every tif to RGB is too slow. :/

[malcev]

this can be 5-50 pictures (each can have 40-500 mb size) and loop have to go thru 50 000 files

It is bad idea.
For normal work You have to create preview file of each 50000 picture with normal size.
To convert them in batch You can with wic help.
Gdi+ does not understand cmyk tif+alpha.