BP inherits from C++ class that inherits from UBlueprintFunctionLibrary. How to get PlayerController?

Development Programming & Scripting Blueprint
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1

I have a Blueprint that inherits from a C++ class that inherits from UBlueprintFunctionLibrary

From within the blueprint, I need to be able to get the viewport size to get the current screen resolution… However, GetViewportSize is not available. Assuming it’s because of the C++ class inherits from UBlueprintFunctionLibrary.

I tried another option which is to use the PlayerController → GetViewportSize. In the BP, Those two wire up fine, but, I am not sure how to construct the PlayerController from my BP. I’ve tried a couple options, but it does not seem to work.

How do you get/or construct the player controller, from inside a BP, that inherits from a C++ class that inherits from UBlueprintFunctionLibrary?

OR
How do you get the viewport size given this particular class heirarchy? The BP Node “GetViewportSize” is not available.
Thanks all.

2

You would use the regular GetPlayerController node. The trick is the world context object input, which since you’re in a blueprint library function won’t be immediately apparent. However there should be a node available ‘Get World Context’ which is available as a sort of hidden input parameter to every function of a blueprint function library. At least when you’re making one in blueprint.

3

Why not use the GameUserSettings which is available from BP?

UGameUserSettings* GameUserSettings = GEngine ? GEngine->GameUserSettings : nullptr;
if (IsValid(GameUserSettings)) {
  FIntPoint Resolution = GameUserSettings->GetScreenResolution();
}
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4

Hey Roy…

Well, honestly because I didn’t know about this node. This might be the very exact thing I need. Because the C++ class needs a FIntPoint anyway as it’s input… This might be the absolute perfect solution. :slight_smile:

EDIT…

Yep, absolutely perfect solution! Works exactly as I needed.
THANK YOU SO MUCH ROY!

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