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C++/Editor. How to enable reimport for custom asset with UFactory?


I created a custom asset and I can import it using my own UFactory. Importing the file works fine, it creates the asset and everything is working just fine. However, I can't figure out how to enable the reimport functionality.

Things I have done so far:

I implemented FReimportHandler and it's interface functions:

virtual bool CanReimport(UObject* Obj, TArray& OutFilenames) override; virtual void SetReimportPaths(UObject* Obj, const TArray& NewReimportPaths) override; virtual EReimportResult::Type Reimport(UObject* Obj) override; virtual int32 GetPriority() const override;

The Handler gets registered in the Editor.cpp file (in RegisterHandler()), so that part works. None of the interface functions are being called though. No breakpoint was hit.

I added UAssetImportData* AssetImportData; to my asset and I set the file path accordingly. The correct file path shows up when I hover over the asset in the editor.

When I right-click the asset, the reimport menu settings don't show up. I went through a few factories and their asset types and copied over pretty much everything that looked like it had anything to do with the reimport, but I still don't get the thing to run. I am trying to track down why my Reimport functions aren't being called, but no success so far.

Any help would be appreciated.


I just found that the import thing shows up in the actual asset editor and reimporting works fine.

asset editor

when I right-click the asset, the import doesn't show up, though.


Product Version: UE 4.15
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asked Apr 25 '17 at 07:36 PM in C++ Programming

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Okay, I tracked the issue down. I had to implement my own FAssetTypeActions_Base and register it with the module.

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answered Apr 26 '17 at 07:22 PM

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avatar image HollingsworthDan Aug 30 '18 at 06:13 PM

Thanks Denny. Just what I was looking for.

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