Slate HorizontalBoxSlot parameter SizeParam compile error

Development Programming & Scripting UI
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1

Using the Slate Editor for user widget, you have access to the Size parameter. see image attached.
As I understand, this parameter is SizeParam.

/**

  • How much space this slot should occupy along panel’s direction.

  • When SizeRule is SizeRule_Auto, the widget’s DesiredSize will be used as the space required.

  • When SizeRule is SizeRule_Stretch, the available space will be distributed proportionately between

  • peer Widgets depending on the Value property. Available space is space remaining after all the

  • peers’ SizeRule_Auto requirements have been satisfied.

*/

FSizeParam SizeParam;

In the FSlot constructor I can see that this parameter is initialized as follow

FSlot()

: TSlotBase()

, SizeParam( FStretch(1) )

Now if I try to replicate this in my widget, it generates an error.

SNew(SHorizontalBox)

  • SHorizontalBox::Slot()

.SizeParam(FStretch(1))

.VAlign(VAlign_Fill)

.HAlign(HAlign_Fill)

[

error C2064: term does not evaluate to a function taking 1 arguments

I don’t understand what is wrong here.

Txs for your help,
D.

2

17802-capture-slate4-5.png

3

You can use

.+ SHorizontalBox::Slot()

.AutoWidth() //to set SizeParam stretching to auto

.FillWidth(float) //to set custom aspect
.

4

Thank you.

D.