FObjectThumbnail | Unreal Engine 5.5 Documentation

API > API/Runtime > API/Runtime/Core > API/Runtime/Core/Misc

References


Module	Core
Header	/Engine/Source/Runtime/Core/Public/Misc/ObjectThumbnail.h
Include	#include "Misc/ObjectThumbnail.h"

Syntax

class FObjectThumbnail

Remarks

Thumbnail image data for an object.

Constructors

	Type	Name	Description
		FObjectThumbnail ()	Default constructor.

Functions

Type	Name	Description
TArray< uint8 > &	AccessCompressedImageData ()	Access the compressed image data.
const TArray< uint8 > &	AccessImageData ()	Access the image data in place (does not decompress) const version.
TArray< uint8 > &	AccessImageData ()	Access the image data in place (does not decompress).
FThumbnailCompressionInterface *	ChooseNewCompressor ()	Returns thumbnail compressor that would be used on current uncompressed image data.
void	CompressImageData ()	Compress image data.
void	CountBytes ( FArchive& Ar )	Calculates the memory usage of this FObjectThumbnail.
void	CountImageBytes_Compressed ( FArchive& Ar )	Calculates the amount of memory used by the compressed bytes array.
void	CountImageBytes_Uncompressed ( FArchive& Ar )	Calculates the amount of memory used by the uncompressed bytes array.
void	DecompressImageData ()	Decompress image data.
int32	GetCompressedDataSize ()
FThumbnailCompressionInterface *	GetCompressor ()	Returns thumbnail compressor used on current compressed image data.
int32	GetImageHeight ()	Returns the height of the thumbnail.
int32	GetImageWidth ()	Returns the width of the thumbnail.
const TArray< uint8 > &	GetUncompressedImageData ()	Returns uncompressed image data, decompressing it on demand if needed.
bool	IsCreatedAfterCustomThumbsEnabled ()	Returns true if the thumbnail was saved AFTER custom-thumbnails for shared thumbnail asset types was supported.
bool	IsDirty ()	Returns true if the thumbnail is dirty and needs to be regenerated at some point.
bool	IsEmpty ()	Returns true if this is an empty thumbnail.
bool	IsLoadedFromDisk ()	Returns true if the thumbnail was loaded from disk and not dynamically generated.
void	MarkAsDirty ()	Marks the thumbnail as dirty.
void	Serialize ( FArchive& Ar )	Serializers
void	Serialize ( FStructuredArchive::FSlot Slot )
void	SetCreatedAfterCustomThumbsEnabled ()	For newly generated custom thumbnails, mark it as valid in the future.
void	SetImageSize ( int32 InWidth, int32 InHeight )	Sets the image dimensions.
void	SetThumbnailCompressors ( FThumbnailCompressionInterface* InPNGThumbnailCompressor, FThumbnailCompressionInterface* InJPEGThumbnailCompressor )	Static: Sets the thumbnail compressor to use when loading/saving packages.