How to Create a bindable property, like the ones in the UMG (ex: TextBlock)

[lehuan5062 (Huân Lê-Vương)]

See UWidget and maybe UImage for references. A boolean example:

Header:

	UPROPERTY(Category = "widget|button", EditAnywhere)
	bool bSelected{ false };

	UPROPERTY()
	FGetBool bSelectedDelegate;

	PROPERTY_BINDING_IMPLEMENTATION(bool, bSelected);