Unreal Engine 4.26 Documentation

Unreal Engine 4.27 Documentation

Unreal Engine 5.0 Documentation

Unreal Engine 5.1 Documentation

Unreal Engine 5.2 Documentation

Unreal Engine 5.3 Documentation

> Unreal Engine API Reference > Runtime > SlateCore > Rendering > FSlateDrawBuffer

Light Theme

Dark Theme

FSlateDrawBuffer

Implements a draw buffer for Slate.

Choose your operating system:

Windows

macOS

Linux

Inheritance Hierarchy

FGCObject

FSlateDrawBuffer

References

Module	SlateCore
Header	/Engine/Source/Runtime/SlateCore/Public/Rendering/SlateDrawBuffer.h
Include	#include "Rendering/SlateDrawBuffer.h"

Syntax

class FSlateDrawBuffer : public FGCObject

Remarks

Implements a draw buffer for Slate.

Variables

		Name	Description
	int32	Locked	1 if this buffer is locked, 0 otherwise.
	uint32	ResourceVersion	Last recorded version from the render. The WindowElementListsPool is emptied when this changes.
	FVector2D	ViewOffset
	TArray< TShared...	WindowElementLists	List of window element lists.
	TArray< TShared...	WindowElementListsPool	List of window element lists that we store from the previous frame that we restore if they're requested again.

Constructors

	Name	Description
	FSlateDrawBuffer()	Default constructor.

Destructors

	Name	Description
	~FSlateDrawBuffer()

Functions

		Name	Description
	FSlateWindow...	AddWindowElementList ( TSharedRef< SWindow > ForWindow )	Creates a new FSlateWindowElementList and returns a reference to it so it can have draw elements added to it
	void	ClearBuffer()	Removes all data from the buffer.
	const TArray...	GetWindowElementLists()	Gets all window element lists in this buffer.
	bool	Lock()	Locks the draw buffer. Indicates that the viewport is in use.
	void	RemoveUnusedWindowElement ( const TArray< SWindow* >& All... )	Removes any window from the draw buffer that's not in this list or whose window has become invalid.
	void	Unlock()	Unlocks the buffer. Indicates that the buffer is free.
	void	UpdateResourceVersion ( uint32 NewResourceVersion )	Updates renderer resource version to allow the draw buffer to clean up cached resources

Overridden from FGCObject

		Name	Description
	void	AddReferencedObjects ( FReferenceCollector& Collector )	FGCObject Interface
	FString	GetReferencerName()	Use this method to report a name for your referencer.