Fatxplorer Extend Code

FatXplorer is a Python library for exploring FAT filesystems (FAT12/16/32). This guide shows how to extend FatXplorer’s codebase with a focused, practical example: adding recursive directory copy functionality (cp -r) and a plugin-style command to the CLI. You'll get design decisions, key code snippets, tests, and a usage example you can drop into the project.

Before diving into the "Extend Code," we must understand the tool. Developed by Eaton (FatXplorer Team), FatXplorer is a Windows-based application (compatible with Windows 7 through Windows 11) that provides low-level drivers to mount Xbox file systems as regular drive letters (e.g., E: or F:). fatxplorer extend code

Key features include:

But the crown jewel for high-capacity storage enthusiasts is the Extend Code. FatXplorer is a Python library for exploring FAT

The following is an example implementation of an extend code that creates a new file: But the crown jewel for high-capacity storage enthusiasts

#include "fatxplorer_api.h"
class CreateFileExtendCode : public FatxplorerExtendCode 
public:
    CreateFileExtendCode();
    ~CreateFileExtendCode();
void OnInit();
    void OnCommand(int command);
;
CreateFileExtendCode::CreateFileExtendCode() {}
CreateFileExtendCode::~CreateFileExtendCode() {}
void CreateFileExtendCode::OnInit() 
    // Initialize the extend code
void CreateFileExtendCode::OnCommand(int command) 
    if (command == 1) 
        // Create a new file
        FatxplorerFile file;
        file.Create("example.txt", FatxplorerFile::TypeFile);
int main() 
    // Register the extend code
    FatxplorerRegisterExtendCode(new CreateFileExtendCode());
return 0;