UEFMBPLibrary

Static Blueprint function library providing all core file and directory operations.

File Creation & Reading

CreateFile

Pure Creates a new empty file.

C++

void CreateFile(FString Directory, FString Name, bool& bSuccess, UEFMFile*& NewCreatedFile)

Parameter	Type	Direction	Description
Directory	FString	In	The directory where the file should be created
Name	FString	In	The file name, along with its extension
bSuccess	bool	Out	Returns if the operation was successful
NewCreatedFile	UEFMFile*	Out	Returns the newly created file reference

Category: File|Creation

Blueprint Node

ƒCreate File

Directory

Name

B Success

New Created File

ReadFile

Pure Reads a file from disk.

C++

void ReadFile(FString Directory, FString Name, bool& bSuccess, UEFMFile*& ReadFile)

Parameter	Type	Direction	Description
Directory	FString	In	The directory where the file is located
Name	FString	In	The file name, along with its extension
bSuccess	bool	Out	Returns if the operation was successful
ReadFile	UEFMFile*	Out	Returns the read file reference

Category: File|Reading

Blueprint Node

ƒRead File

Directory

Name

B Success

Read File

---

File Operations

FileExists

Pure Checks if a file exists.

C++

bool FileExists(FString Directory, FString Name)

Parameter	Type	Description
Directory	FString	The directory where the file is located
Name	FString	The file name, along with its extension

Returns: true if the file exists

Category: EFM|Utilities

Blueprint Node

ƒFile Exists

Directory

Name

Return Value

CopyFileObject

Callable Copies a file to a destination.

C++

void CopyFileObject(UEFMFile* File, FString AbsoluteDestination, bool& bSuccess, UEFMFile*& CopiedFile)

Parameter	Type	Direction	Description
File	UEFMFile*	In	The file to copy
AbsoluteDestination	FString	In	The absolute file destination (Directory + File + Extension)
bSuccess	bool	Out	Returns if the operation was successful
CopiedFile	UEFMFile*	Out	The copied file reference

Category: File|Operations

Blueprint Node

ƒCopy File Object

File

Absolute Destination

B Success

Copied File

MoveFileObject

Callable Moves a file to a destination.

C++

void MoveFileObject(UEFMFile* File, FString AbsoluteDestination, bool& bSuccess)

Parameter	Type	Direction	Description
File	UEFMFile*	In	The file to move
AbsoluteDestination	FString	In	The absolute file destination
bSuccess	bool	Out	Returns if the operation was successful

Category: File|Operations

Blueprint Node

ƒMove File Object

File

Absolute Destination

B Success

RenameFileObject

Callable Renames a file.

C++

void RenameFileObject(UEFMFile* File, FString NewFileName, bool& bSuccess)

Parameter	Type	Direction	Description
File	UEFMFile*	In	The file to rename
NewFileName	FString	In	The new file name (add .extension to also change extension)
bSuccess	bool	Out	Returns if the operation was successful

Category: File|Operations

Blueprint Node

ƒRename File Object

File

New File Name

B Success

DeleteFileObject

Callable Deletes a file.

C++

void DeleteFileObject(UEFMFile* File, bool& bSuccess)

Parameter	Type	Direction	Description
File	UEFMFile*	In	The file to delete
bSuccess	bool	Out	Returns if the operation was successful

Category: File|Operations

Blueprint Node

ƒDelete File Object

File

B Success

CopyFile

Callable Copies a file given its path, without needing a UEFMFile object.

C++

bool CopyFile(FString SourceFile, FString AbsoluteDestination)

Parameter	Type	Description
SourceFile	FString	The file to copy
AbsoluteDestination	FString	The absolute file destination (Directory + File + Extension)

Category: File|Operations

Blueprint Node

ƒCopy File

Source File

Absolute Destination

Return Value

MoveFile

Callable Moves a file given its path, without needing a UEFMFile object.

C++

bool MoveFile(FString SourceFile, FString AbsoluteDestination)

Parameter	Type	Description
SourceFile	FString	The file to move
AbsoluteDestination	FString	The absolute file destination (Directory + File + Extension)

Category: File|Operations

Blueprint Node

ƒMove File

Source File

Absolute Destination

Return Value

RenameFile

Callable Renames a file given its path, without needing a UEFMFile object.

C++

bool RenameFile(FString FullFilePath, FString NewFileName)

Parameter	Type	Description
FullFilePath	FString	The file to rename
NewFileName	FString	The new file name (add .extension to also change extension)

Category: File|Operations

Blueprint Node

ƒRename File

Full File Path

New File Name

Return Value

DeleteFile

Callable Deletes a file given its path, without needing a UEFMFile object.

C++

bool DeleteFile(FString FullFilePath)

Parameter	Type	Description
FullFilePath	FString	The file to delete

Category: File|Operations

Blueprint Node

ƒDelete File

Full File Path

Return Value

---

Directory Operations

DirectoryExists

Pure Checks if a directory exists.

C++

bool DirectoryExists(FString DirectoryPath)

Category: Directories|Operations

Blueprint Node

ƒDirectory Exists

Directory Path

Return Value

CreateDirectory

Callable Creates a new directory.

C++

bool CreateDirectory(FString NewDirectoryPath)

Category: Directories|Operations

Blueprint Node

ƒCreate Directory

New Directory Path

Return Value

CreateDirectoryTree

Callable Creates the entire directory tree.

C++

bool CreateDirectoryTree(FString NewDirectoryTreePath)

Category: Directories|Operations

Blueprint Node

ƒCreate Directory Tree

New Directory Tree Path

Return Value

CopyDirectory

Callable Copies a directory to a destination.

C++

bool CopyDirectory(FString SourceDirectory, FString DestinationDirectory, bool bOverwriteExistingDirectory = true)

Category: Directories|Operations

Blueprint Node

ƒCopy Directory

Source Directory

Destination Directory

B Overwrite Existing Directory

Return Value

MoveDirectory

Callable Moves a directory.

C++

bool MoveDirectory(FString SourceDirectory, FString DestinationDirectory)

Category: Directories|Operations

Blueprint Node

ƒMove Directory

Source Directory

Destination Directory

Return Value

RenameDirectory

Callable Renames a directory.

C++

bool RenameDirectory(FString FullDirectoryPath, FString NewDirectoryName)

Category: Directories|Operations

Blueprint Node

ƒRename Directory

Full Directory Path

New Directory Name

Return Value

DeleteDirectory

Callable Deletes a directory.

C++

bool DeleteDirectory(FString Directory, bool bRecursively = true)

Category: Directories|Operations

Blueprint Node

ƒDelete Directory

Directory

B Recursively

Return Value

GetDirectoryContent

Pure Gets files and/or folders in a directory.

C++

TArray<FString> GetDirectoryContent(FString SourceDirectory, bool bFiles = true, bool bDirectories = true)

Category: Directories|Operations

Blueprint Node

ƒGet Directory Content

Source Directory

B Files

B Directories

Return Value

---

Path Utilities

GetDirectoryFromString

Pure Extracts directory path from a string.

C++

FString GetDirectoryFromString(FString InputString)

Blueprint Node

ƒGet Directory From String

Input String

Return Value

GetGameExecutableDirectory

Pure Returns Binaries/PLATFORM/.

C++

FString GetGameExecutableDirectory()

Blueprint Node

ƒGet Game Executable Directory

Return Value

GetGameContentDirectory

Pure Returns Game/Content/.

C++

FString GetGameContentDirectory()

Blueprint Node

ƒGet Game Content Directory

Return Value

GetGameSavedDirectory

Pure Returns Game/Saved/.

C++

FString GetGameSavedDirectory()

Blueprint Node

ƒGet Game Saved Directory

Return Value

GetGameDirectoryRoot

Pure Returns the platform-specific game root.

C++

FString GetGameDirectoryRoot()

Blueprint Node

ƒGet Game Directory Root

Return Value

GetGameUprojectRoot

Pure Returns the .uproject file path.

C++

FString GetGameUprojectRoot()

Blueprint Node

ƒGet Game Uproject Root

Return Value

GetDirectoryAndFileFromString

Pure Splits a full path into directory and file name.

C++

void GetDirectoryAndFileFromString(FString InputString, FString& Directory, FString& File)

Blueprint Node

ƒGet Directory And File From String

Input String

Directory

File

GetFileFromDirectoryString

Pure Extracts file name from a full path.

C++

FString GetFileFromDirectoryString(FString Directory)

Blueprint Node

ƒGet File From Directory String

Directory

Return Value

GetExtensionFromString

Pure Extracts file extension.

C++

FString GetExtensionFromString(FString File)

Blueprint Node

ƒGet Extension From String

File

Return Value

CreateFullPath

Pure Combines directory and file name into a full path.

C++

FString CreateFullPath(FString Directory, FString Name)

Blueprint Node

ƒCreate Full Path

Directory

Name

Return Value

GetPlatformPathSlashCharacter

Pure Returns / or \ depending on platform.

C++

FString GetPlatformPathSlashCharacter()

Blueprint Node

ƒGet Platform Path Slash Character

Return Value

NormalizePath

Pure Normalizes path separators.

C++

FString NormalizePath(const FString& Path)

Blueprint Node

ƒNormalize Path

Path

Return Value

GetAbsolutePath

Pure Converts relative path to absolute.

C++

FString GetAbsolutePath(const FString& RelativePath)

Blueprint Node

ƒGet Absolute Path

Relative Path

Return Value

GetRelativePath

Pure Converts absolute path to relative.

C++

FString GetRelativePath(const FString& AbsolutePath, const FString& BasePath)

Blueprint Node

ƒGet Relative Path

Absolute Path

Base Path

Return Value

IsAbsolutePath

Pure Checks if a path is absolute.

C++

bool IsAbsolutePath(const FString& Path)

Blueprint Node

ƒIs Absolute Path

Path

Return Value

IsPathValid

Pure Validates a path string.

C++

bool IsPathValid(const FString& Path)

Blueprint Node

ƒIs Path Valid

Path

Return Value

ChangePathExtension

Pure Changes the extension of a path.

C++

FString ChangePathExtension(const FString& Path, const FString& NewExtension)

Blueprint Node

ƒChange Path Extension

Path

New Extension

Return Value

RemovePathExtension

Pure Removes the extension from a path.

C++

FString RemovePathExtension(const FString& Path)

Blueprint Node

ƒRemove Path Extension

Path

Return Value

CombinePaths

Pure Combines multiple path segments.

C++

FString CombinePaths(const TArray<FString>& Paths)

Blueprint Node

ƒCombine Paths

Paths

Return Value

GetParentDirectory

Pure Gets the parent directory of a path.

C++

FString GetParentDirectory(const FString& Path)

Blueprint Node

ƒGet Parent Directory

Path

Return Value

---

File Metadata

GetFileCreationTime

Pure

C++

FDateTime GetFileCreationTime(FString Directory, FString Name)

Blueprint Node

ƒGet File Creation Time

Directory

Name

Return Value

GetFileLastModifiedTime

Pure

C++

FDateTime GetFileLastModifiedTime(FString Directory, FString Name)

Blueprint Node

ƒGet File Last Modified Time

Directory

Name

Return Value

GetFileSize

Pure Returns file size in bytes.

C++

int64 GetFileSize(FString Directory, FString Name)

Blueprint Node

ƒGet File Size

Directory

Name

Return Value

GetFileMD5

Pure

C++

FString GetFileMD5(FString Directory, FString Name)

Blueprint Node

ƒGet File MD5

Directory

Name

Return Value

GetFileSHA1

Pure

C++

FString GetFileSHA1(FString Directory, FString Name)

Blueprint Node

ƒGet File SHA1

Directory

Name

Return Value

VerifyFileHash

Pure Verifies file hash against expected value.

C++

bool VerifyFileHash(FString Directory, FString Name, FString ExpectedHash, EFileHashType HashType)

Blueprint Node

ƒVerify File Hash

Directory

Name

Expected Hash

Hash Type

Return Value

SetFileReadOnly

Callable

C++

bool SetFileReadOnly(FString Directory, FString Name, bool bReadOnly)

Blueprint Node

ƒSet File Read Only

Directory

Name

B Read Only

Return Value

IsFileReadOnly

Pure

C++

bool IsFileReadOnly(FString Directory, FString Name)

Blueprint Node

ƒIs File Read Only

Directory

Name

Return Value

SetFileHidden

Callable

C++

bool SetFileHidden(FString Directory, FString Name, bool bHidden)

Blueprint Node

ƒSet File Hidden

Directory

Name

B Hidden

Return Value

IsFileHidden

Pure

C++

bool IsFileHidden(FString Directory, FString Name)

Blueprint Node

ƒIs File Hidden

Directory

Name

Return Value

SetFileTimestamp

Callable

C++

void SetFileTimestamp(FString Directory, FString Name, FDateTime NewTime)

Blueprint Node

ƒSet File Timestamp

Directory

Name

New Time

---

Advanced Search

SearchFiles

Pure Search files by pattern (wildcard or regex).

C++

TArray<FString> SearchFiles(const FString& Directory, const FString& Pattern, bool bRecursive, bool bUseRegex = false)

Blueprint Node

ƒSearch Files

Directory

Pattern

B Recursive

B Use Regex

Return Value

SearchFilesByExtension

Pure

C++

TArray<FString> SearchFilesByExtension(const FString& Directory, const TArray<FString>& Extensions, bool bRecursive)

Blueprint Node

ƒSearch Files By Extension

Directory

Extensions

B Recursive

Return Value

SearchFilesByDate

Pure

C++

TArray<FString> SearchFilesByDate(const FString& Directory, const FDateTime& MinDate, const FDateTime& MaxDate, bool bRecursive)

Blueprint Node

ƒSearch Files By Date

Directory

Min Date

Max Date

B Recursive

Return Value

SearchFilesBySize

Pure

C++

TArray<FString> SearchFilesBySize(const FString& Directory, int64 MinSizeBytes, int64 MaxSizeBytes, bool bRecursive)

Blueprint Node

ƒSearch Files By Size

Directory

Min Size Bytes

Max Size Bytes

B Recursive

Return Value

---

Symbolic & Hard Links

CreateSymbolicLink

Callable

C++

bool CreateSymbolicLink(const FString& LinkPath, const FString& TargetPath, bool bIsDirectory)

Blueprint Node

ƒCreate Symbolic Link

Link Path

Target Path

B Is Directory

Return Value

IsSymbolicLink

Pure

C++

bool IsSymbolicLink(const FString& Path)

Blueprint Node

ƒIs Symbolic Link

Path

Return Value

GetSymbolicLinkTarget

Pure

C++

FString GetSymbolicLinkTarget(const FString& Path)

Blueprint Node

ƒGet Symbolic Link Target

Path

Return Value

ResolveSymbolicLink

Pure

C++

bool ResolveSymbolicLink(const FString& Path, FString& ResolvedPath)

Blueprint Node

ƒResolve Symbolic Link

Path

Resolved Path

Return Value

CreateHardLink

Callable

C++

bool CreateHardLink(const FString& LinkPath, const FString& TargetPath)

Blueprint Node

ƒCreate Hard Link

Link Path

Target Path

Return Value

---

Directory Statistics

GetFileCount

Pure

C++

int32 GetFileCount(const FString& Directory, bool bRecursive)

Blueprint Node

ƒGet File Count

Directory

B Recursive

Return Value

GetDirectoryCount

Pure

C++

int32 GetDirectoryCount(const FString& Directory, bool bRecursive)

Blueprint Node

ƒGet Directory Count

Directory

B Recursive

Return Value

GetDirectorySize

Pure

C++

int64 GetDirectorySize(const FString& Directory, bool bRecursive)

Blueprint Node

ƒGet Directory Size

Directory

B Recursive

Return Value

GetDirectoryStatistics

Pure

C++

void GetDirectoryStatistics(const FString& Directory, bool bRecursive, int32& FileCount, int32& DirectoryCount, int64& TotalSize)

Blueprint Node

ƒGet Directory Statistics

Directory

B Recursive

File Count

Directory Count

Total Size

GetFileCountByExtension

Pure

C++

TMap<FString, int32> GetFileCountByExtension(const FString& Directory, bool bRecursive)

Blueprint Node

ƒGet File Count By Extension

Directory

B Recursive

Return Value

GetLargestFiles

Pure

C++

TArray<FString> GetLargestFiles(const FString& Directory, int32 Count, bool bRecursive)

Blueprint Node

ƒGet Largest Files

Directory

Count

B Recursive

Return Value

---

Clipboard

CopyToClipboard

Callable

C++

bool CopyToClipboard(const FString& Text)

Blueprint Node

ƒCopy To Clipboard

Text

Return Value

GetFromClipboard

Pure

C++

FString GetFromClipboard()

Blueprint Node

ƒGet From Clipboard

Return Value

HasClipboardText

Pure

C++

bool HasClipboardText()

Blueprint Node

ƒHas Clipboard Text

Return Value

ClearClipboard

Callable

C++

void ClearClipboard()

Blueprint Node

ƒClear Clipboard

---

Diagnostics

RunEFMDiagnostics

Callable Runs comprehensive diagnostics on all EFM functions and logs results.

C++

void RunEFMDiagnostics()

Blueprint Node

ƒRun EFMDiagnostics

Use this to verify all EFM functions work correctly on the current platform. Check the Output Log for pass/fail results.