Skip to content
Ciji Games Support All Products
C++ Generator C++ Generator

C++ Generator

Documentation, guides, and technical support for C++ Generator in Unreal Engine.

Official GuideNeed Help? Join Discord

Overview

Build faster, smarter, and easier with this snippet and boilerplate generator.

  • UMacros Generator: Leverage 100+ unique specifiers to maximize Unreal Engine’s reflection system.
  • AActor Generator: Streamline actor class hierarchies, auto-resolve module includes, and manage components with drag-and-drop.
  • C++ Toolbox: Generate Enums, Structs, instant logging helpers, debug shapes, and engine-wide include lookups.

Launch the C++ Generator

If you don’t see the toolbar icon be sure to have the plugin enabled in Edit > Plugins > Installed

Once enabled, launch the C++ Generator from the editor toolbar to begin creating variables, functions, and actor hierarchies.

UMacros Tab: Create Variables and Functions

  1. Click the + button to create a new variable or function.
  2. Select the item and adjust its type and exposure settings.
  3. Apply the appropriate flags & specifiers.
  4. Copy the generated C++ code snippet.
  5. Paste it directly into your header (.h) file.

The C++ generator manually translates each variable type, meaning the available options are currently limited. Below is the list of supported types—we’ll continue expanding it in future updates.

AActor Tab: Create Actor Hierarchies

Add components to your actor:

  1. Click + Add to add a new component.
  2. Select the component to configure its hierarchy and attachment.
  3. Reorganize components via drag and drop. (Scene Components can be nested; Pure Actor Components attach to root.)

Integrate custom C++ components:

  1. Compile your component from your code editor (IDE).
  2. Restart Unreal Engine and C++ Generator to populate custom components (must have BlueprintSpawnableComponent).

C++ Toolbox Suite

C++ Toolbox Suite

Enum & Struct Generator
Fast On-Screen & Log Macros
Debug Shape Generators
Module Include Search
Gameplay Tags & Helpers
Interface & Delegate Tools

Flags and Specifiers

Unreal Engine uses reflection macros to expose classes, properties, functions, enums, and structs to the editor and Blueprints:

  • UCLASS, UPROPERTY, UFUNCTION, UENUM, USTRUCT

Each macro supports specifiers that dictate serialization, network replication, category sorting, and Blueprint accessibility.

  • 🛠️ C++ Generator provides 100+ unique specifiers with interactive tooltips.
  • ⚠️ Some flags require additional functions and won’t compile until all dependencies are met.

UCLASS Specifiers

  • Blueprintable: Allows the creation of a Blueprint class that inherits from this class.
  • BlueprintType: Allows creating variables in Blueprints with this type in the editor.
  • Abstract: Makes the class abstract (non-instantiable in the level).
  • EditInLineNew: Assigning a reference of this class type in the editor creates a new instance (instead of just referencing an existing instance or asset).

UPROPERTY Specifiers

UPROPERTY Specifiers Reference

UFUNCTION Specifiers

Want to know more about all specifiers & flags? Check out Ben UI’s UPROPERTY Reference Guide.

Compilation Workflows

Compiling from Code Editor (Recommended):

  1. Close Unreal Engine.
  2. In Visual Studio press Ctrl + Shift + B (or in Rider click Build).
  3. Restart Unreal Engine to load updated binaries.

Hot Compile / Live Coding (Fast Iteration):

  1. Save code modifications in your IDE.
  2. Press Compile / Ctrl + Alt + F11 inside Unreal Engine.
  3. Best for method logic changes; structural changes require an editor restart.

C++ Modules Configuration

Unreal Engine encapsulates functionality into discrete compilation modules. When using types from external modules (e.g. Niagara, EnhancedInput, UMG), you must declare module dependencies in your Build.cs.

Adding a module:

  1. Copy the module name identified by C++ Generator.
  2. Add the module to PublicDependencyModuleNames in your [Project].Build.cs.
  3. Regenerate project files and build.

Regenerating the C++ Project

Troubleshooting

If properties or functions don’t appear in the editor after compilation, UE’s reflection database may need a refresh:

  1. Check Output Log for syntax errors or unresolved includes.
  2. In Unreal Engine: Tools > Refresh Visual Studio Project (or Refresh Rider Project).
  3. Close Unreal Engine and perform a clean build from your IDE.
  4. Emergency Fix: Run RegenerateCPP.bat from the Ciji UE-Toolbox repository to force clean intermediate files and project bindings.