USizeBox

class UMG Blueprint Since 4.5

Inherits: UObjectBase › UObjectBaseUtility › UObject › UVisual › UWidget › UPanelWidget › UContentWidget › USizeBox

#include "Components/SizeBox.h"

Description

A single-child wrapper that overrides or constrains the desired size reported by its child widget. Use it to force a fixed width/height or clamp the child's size within min/max bounds.

Caveats & Gotchas

• WidthOverride and HeightOverride completely ignore the child's desired size on that axis. Use SetMinDesiredWidth/SetMaxDesiredWidth to constrain without fully overriding.
• Size overrides only affect the desired size reported up to the parent layout pass. If the parent ignores desired size (e.g. a Canvas slot with a fixed size), USizeBox has no visible effect.
• ClearWidthOverride() and ClearHeightOverride() restore the child's natural desired size on those axes.

Example

Force a button to a fixed size C++

MySizeBox->SetWidthOverride(200.f);
MySizeBox->SetHeightOverride(40.f);

Version History

Introduced in: 4.5

Version	Status	Notes
5.6	stable	—

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