Get size of auto-sized widget

Development Programming & Scripting Blueprint
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1

Hi there, I’m trying to get the size of a widget. I know I can do this like in the example below:

233740-sizeofwidget.png

However, this doesn’t work with an auto-sized widget (“Size to content” inside of a canvas), because it always returns the size the widget has before it gets auto-sized. How can I get the final size the widget has when it’s displayed with auto size?

2

Ever find an answer to this?

3

Get Desired Size.

4

Returns 0,0 in this case, that’s not what I need. There’s this node:

256651-unbenannt.png
256651-unbenannt.png740×215 36.9 KB

But instead of just saying if It’s autosized or not I need the actual Vector2. :smiley:

5

Get Desired Size is what you are looking for. But you need to call it after some delay.

6

That’s what ForceLayoutPrepass is for. Delay 0.0 should also work but it’s more of a hack.

7

Sorry, forgot to answer this, ForceLayoutPrepass worked for me, thank you! :slight_smile:

8

How are you using ForceLayoutPrepass? I can’t get the final auto-sized dimensions no matter what I try.

9

276006-widgets.png
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Just call the ForceLayoutPrepass BEFORE you return the size of your autosized widget. :slight_smile:

10

Thank you for the visual!

11

In case that helps, here’s how I’m doing it in C++ :

FVector2D USpacerHelper::GetWidgetSize(UWidget* Widget)
{
FGeometry AbsoluteGeometry = Widget->GetCachedGeometry();
return FMath::Min(AbsoluteGeometry.GetAbsoluteSize(), Widget->GetDesiredSize());
}