WebUFUNCTION(BlueprintCallable) void test1_4(const int32& number) { UE_LOG(LogTemp, Warning, TEXT("%d"), number); } 在蓝图中,可以看到为这样的形式 测试一下,不填充这个参数的值,就会发生错误警告 传入一个参数后 b)带有默认参数 UFUNCTION(BlueprintCallable) void test1_4(const int32& number=100) { UE_LOG(LogTemp, Warning, TEXT("%d"), … Web8 Nov 2024 · Starting with UE4.23: The EditCondition meta tag is no longer limited to a single boolean property. It is now evaluated using a full-fledged expression parser, meaning you can include a full C++ expression. This means we can do things like disabling (or even hiding) a property based on the value of an enum UPROPERTY.
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