How can C++ UPROPERTY uses blueprint bitmask enum?

[anonymous_user_4903be2b]

I defined a UPROPERTY in C++ code as following, it is a integer with Bitmask specified.

UPROPERTY(Category = Collision, EditAnywhere, BlueprintReadWrite, meta = (Bitmask))
int32 CollisionMask;

and I want to use the collision mask in blueprint with blueprint enum, is this possible? Thanks.

[anonymous_user_478829031 (anonymous_user_47882903)]

It do not know about version 4.13, but in 4.16 and beyond it is very possible:
https://docs.unrealengine.com/latest/INT/Programming/UnrealArchitecture/Reference/Properties/

(look for the text: “BitmaskEnum”.)

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Example copied from the link:

UPROPERTY(EditAnywhere, Meta = (Bitmask, BitmaskEnum = “EColorBits”))

int32 ColorFlags;