Unreal Engine Issues

UE-48166

Blueprint Editor: BP functions display dropdown instead of checkboxes for uint8 enum parameters

Blueprint Editor: BP functions display dropdown instead of checkboxes for uint8 enum parameters

Description

I traced through the callstack and it looks like the problem is as follows:

  • in order for the BP function to compile, its enum parameter must be uint8, because that is the only type supported by BP functions right now
  • for uint8 enum pins, the PinCategory is set to PC_Byte and the PinSubCategory is currently empty (regardless of whether the "BitFlags" metadata is set or not)
  • in FNodeFactory::CreatePinWidget the code path for PC_Byte is taken, and an SGraphPinEnum instead of SGraphPinInteger is created
  • unlike SGraphPinInteger, the SGraphPinEnum does not support checkbox creation

I tried the following modification in FNodeFactory::CreatePinWidget:

else if (InPin->PinType.PinCategory == K2Schema->PC_Byte)
		{
			// Check for valid enum object reference
			if ((InPin->PinType.PinSubCategory != K2Schema->PSC_Bitmask) && (InPin->PinType.PinSubCategoryObject != NULL) && (InPin->PinType.PinSubCategoryObject->IsA(UEnum::StaticClass())))
			{
				return SNew(SGraphPinEnum, InPin);
			}
			else
			{
				return SNew(SGraphPinInteger, InPin);
			}
		}

This didn't work, because PinSubCategory isn't set.

However, even if PinSubCategory was set, I have doubts whether that code path would work at all. At first glance, it seems that SGraphPinInteger might expect 32-bit fields, and applying it to 8-bit fields might clobber adjacent properties or values on the stack frame.

I'm not sure what the best solution is. One option is to add uint32 support for BP function parameters. Another would be to add uint8 support to SGraphPinInteger.

Steps to Reproduce

1) Open Level Blueprint editor
2) Add a "EnumerateVideoCaptureDevices" BP function

Notice that the pin for the "Filter" parameter is rendered as a drop-down list instead of a set of checkboxes.

Callstack
>	UE4Editor-GraphEditor-Win64-Debug.dll!FNodeFactory::CreatePinWidget(UEdGraphPin * InPin) Line 315	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!SGraphNode::CreatePinWidget(UEdGraphPin * Pin) Line 1096	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!SGraphNode::CreateStandardPinWidget(UEdGraphPin * CurPin) Line 1064	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!SGraphNode::CreatePinWidgets() Line 1091	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!SGraphNode::UpdateGraphNode() Line 932	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!SGraphNodeK2Base::UpdateStandardNode() Line 48	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!SGraphNodeK2Base::UpdateGraphNode() Line 342	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!SGraphNodeK2Default::Construct(const SGraphNodeK2Default::FArguments & InArgs, UK2Node * InNode) Line 15	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!RequiredArgs::T1RequiredArgs<UK2Node * __ptr64 & __ptr64>::CallConstruct<SGraphNodeK2Default>(const TSharedRef<SGraphNodeK2Default,0> & OnWidget, const SGraphNodeK2Default::FArguments & WithNamedArgs) Line 852	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!TDecl<SGraphNodeK2Default,RequiredArgs::T1RequiredArgs<UK2Node * __ptr64 & __ptr64> >::operator<<=(const SGraphNodeK2Default::FArguments & InArgs) Line 1093	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!FNodeFactory::CreateNodeWidget(UEdGraphNode * InNode) Line 192	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!SGraphPanel::AddNode(UEdGraphNode * Node, SGraphPanel::AddNodeBehavior Behavior) Line 1349	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!<lambda_a4d83f43f9247a02ef9d71c614e6b7ae>::<lambda_invoker_cdecl>(double __formal, float __formal, SGraphPanel * Parent, TWeakObjectPtr<UEdGraphNode,FWeakObjectPtr> NodePtr, bool bForceUserAdded) Line 1642	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int,0,1,2>,SGraphPanel * __ptr64,TWeakObjectPtr<UEdGraphNode,FWeakObjectPtr>,bool>::ApplyAfter<enum EActiveTimerReturnType (__cdecl*const & __ptr64)(double,float,SGraphPanel * __ptr64,TWeakObjectPtr<UEdGraphNode,FWeakObjectPtr>,bool),double & __ptr64,float & __ptr64>(EActiveTimerReturnType(*)(double, float, SGraphPanel *, TWeakObjectPtr<UEdGraphNode,FWeakObjectPtr>, bool) & Func, double & <Args_0>, float & <Args_1>) Line 423	C++
 	UE4Editor-GraphEditor-Win64-Debug.dll!TBaseStaticDelegateInstance<enum EActiveTimerReturnType __cdecl(double,float),SGraphPanel * __ptr64,TWeakObjectPtr<UEdGraphNode,FWeakObjectPtr>,bool>::Execute(double <Params_0>, float <Params_1>) Line 959	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!FActiveTimerHandle::ExecuteIfPending(double CurrentTime, float DeltaTime) Line 48	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::ExecuteActiveTimers(double CurrentTime, float DeltaTime) Line 991	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 869	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SOverlay::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 88	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SCompoundWidget::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 35	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-Slate-Win64-Debug.dll!SBox::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 245	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SCompoundWidget::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 35	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SCompoundWidget::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 35	C++
 	UE4Editor-Slate-Win64-Debug.dll!SBorder::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 86	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SOverlay::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 88	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::PaintArrangedChildren(const FPaintArgs & Args, const FArrangedChildren & ArrangedChildren, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 30	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 12	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SCompoundWidget::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 35	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::PaintArrangedChildren(const FPaintArgs & Args, const FArrangedChildren & ArrangedChildren, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 30	C++
 	UE4Editor-Slate-Win64-Debug.dll!SSplitter::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 165	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SCompoundWidget::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 35	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::PaintArrangedChildren(const FPaintArgs & Args, const FArrangedChildren & ArrangedChildren, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 30	C++
 	UE4Editor-Slate-Win64-Debug.dll!SSplitter::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 165	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SOverlay::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 88	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SCompoundWidget::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 35	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::PaintArrangedChildren(const FPaintArgs & Args, const FArrangedChildren & ArrangedChildren, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 30	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 12	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SCompoundWidget::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 35	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SCompoundWidget::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 35	C++
 	UE4Editor-Slate-Win64-Debug.dll!SBorder::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 86	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SOverlay::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 88	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::PaintArrangedChildren(const FPaintArgs & Args, const FArrangedChildren & ArrangedChildren, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 30	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 12	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SCompoundWidget::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 35	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::PaintArrangedChildren(const FPaintArgs & Args, const FArrangedChildren & ArrangedChildren, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 30	C++
 	UE4Editor-Slate-Win64-Debug.dll!SSplitter::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 165	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SOverlay::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 88	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SCompoundWidget::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 35	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::PaintArrangedChildren(const FPaintArgs & Args, const FArrangedChildren & ArrangedChildren, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 30	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 12	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::PaintArrangedChildren(const FPaintArgs & Args, const FArrangedChildren & ArrangedChildren, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 30	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SPanel::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 12	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SOverlay::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 88	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SCompoundWidget::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 35	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWindow::OnPaint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 1839	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWidget::Paint(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 899	C++
 	UE4Editor-SlateCore-Win64-Debug.dll!SWindow::PaintWindow(const FPaintArgs & Args, const FGeometry & AllottedGeometry, const FSlateRect & MyCullingRect, FSlateWindowElementList & OutDrawElements, int LayerId, const FWidgetStyle & InWidgetStyle, bool bParentEnabled) Line 1831	C++
 	UE4Editor-Slate-Win64-Debug.dll!FSlateApplication::DrawWindowAndChildren(const TSharedRef<SWindow,0> & WindowToDraw, FDrawWindowArgs & DrawWindowArgs) Line 1233	C++
 	UE4Editor-Slate-Win64-Debug.dll!FSlateApplication::DrawWindowAndChildren(const TSharedRef<SWindow,0> & WindowToDraw, FDrawWindowArgs & DrawWindowArgs) Line 1325	C++
 	UE4Editor-Slate-Win64-Debug.dll!FSlateApplication::PrivateDrawWindows(TSharedPtr<SWindow,0> DrawOnlyThisWindow) Line 1473	C++
 	UE4Editor-Slate-Win64-Debug.dll!FSlateApplication::DrawWindows() Line 1190	C++
 	UE4Editor-Slate-Win64-Debug.dll!FSlateApplication::TickApplication(ESlateTickType TickType, float DeltaTime) Line 1777	C++
 	UE4Editor-Slate-Win64-Debug.dll!FSlateApplication::Tick(ESlateTickType TickType) Line 1595	C++
 	UE4Editor-Win64-Debug.exe!FEngineLoop::Tick() Line 3325	C++
 	UE4Editor-Win64-Debug.exe!EngineTick() Line 63	C++
 	UE4Editor-Win64-Debug.exe!GuardedMain(const wchar_t * CmdLine, HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, int nCmdShow) Line 169	C++
 	UE4Editor-Win64-Debug.exe!WinMain(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * __formal, int nCmdShow) Line 199	C++
 	UE4Editor-Win64-Debug.exe!__scrt_common_main_seh() Line 253	C++
 	kernel32.dll!BaseThreadInitThunk()	Unknown
 	ntdll.dll!RtlUserThreadStart()	Unknown

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By Design
ComponentUE - Gameplay - Blueprint Editor
Affects Versions4.17
Target Fix4.18
CreatedAug 8, 2017
ResolvedAug 16, 2017
UpdatedApr 27, 2018
View Jira Issue