EFMPreview

File preview functions for images, text, and file descriptions.

Functions

GetImagePreview

Callable Loads an image file as a Texture2D with size limits.

C++

UTexture2D* GetImagePreview(const FString& FilePath, int32 MaxWidth = 256, int32 MaxHeight = 256)

Parameter	Type	Default	Description
FilePath	FString	-	Full path to the image file
MaxWidth	int32	256	Maximum width of the preview
MaxHeight	int32	256	Maximum height of the preview

Returns: UTexture2D* preview texture, or nullptr on failure

Category: EFM|Preview

Blueprint Node

ƒGet Image Preview

File Path

Max Width

Max Height

Return Value

GetTextPreview

Pure Reads a limited preview of a text file.

C++

FString GetTextPreview(const FString& FilePath, int32 MaxLines = 10, int32 MaxCharsPerLine = 100)

Parameter	Type	Default	Description
FilePath	FString	-	Full path to the text file
MaxLines	int32	10	Maximum number of lines to read
MaxCharsPerLine	int32	100	Maximum characters per line

Returns: Text preview string

Category: EFM|Preview

Blueprint Node

ƒGet Text Preview

File Path

Max Lines

Max Chars Per Line

Return Value

GetFileDescription

Pure Gets a human-readable description of a file.

C++

FString GetFileDescription(const FString& FilePath)

Returns: File description string (includes type, size, etc.)

Category: EFM|Preview

Blueprint Node

ƒGet File Description

File Path

Return Value

CanPreviewFile

Pure Checks if a file can be previewed.

C++

bool CanPreviewFile(const FString& FilePath)

Returns: true if the file type supports previewing

Category: EFM|Preview

Blueprint Node

ƒCan Preview File

File Path

Return Value

Example

// Get image preview for UI
Thumb = GetImagePreview("C:/images/photo.png", 128, 128)
if Thumb:
  ImageBrush.SetResourceObject(Thumb)

// Get text preview
Preview = GetTextPreview("C:/logs/game.log", 5, 80)
Log(Preview)

// Check if previewable
if CanPreviewFile("C:/data/report.pdf"):
  Desc = GetFileDescription("C:/data/report.pdf")
  Log(Desc)