# ThumbnailSize - **功能描述:** 改变缩略图的大小。 - **使用位置:** UCLASS, UPROPERTY - **引擎模块:** Object Property - **元数据类型:** bool - **关联项:** [DisplayThumbnail](DisplayThumbnail/DisplayThumbnail.md) 改变缩略图的大小。但发现并不会起作用。 ## 原理: ```cpp void SObjectPropertyEntryBox::Construct( const FArguments& InArgs ) { // check if the property metadata wants us to display a thumbnail const FString& DisplayThumbnailString = PropertyHandle->GetProperty()->GetMetaData(TEXT("DisplayThumbnail")); if(DisplayThumbnailString.Len() > 0) { bDisplayThumbnail = DisplayThumbnailString == TEXT("true"); } // check if the property metadata has an override to the thumbnail size const FString& ThumbnailSizeString = PropertyHandle->GetProperty()->GetMetaData(TEXT("ThumbnailSize")); if ( ThumbnailSizeString.Len() > 0 ) { FVector2D ParsedVector; if ( ParsedVector.InitFromString(ThumbnailSizeString) ) { ThumbnailSize.X = (int32)ParsedVector.X; ThumbnailSize.Y = (int32)ParsedVector.Y; } } } ```