Dumpers

C++ Header Generator

The C++ dumper is a tool that generates C++ headers from UE4 classes and blueprints.

The keybind to generate headers is by default CTRL + H, and it can be changed in Mods/Keybinds/Scripts/main.lua.

It generates a .hpp file for each blueprint (including animation blueprint and widget blueprint), and then all of the base classes inside of <ProjectName>.hpp or <EngineModule>.hpp. All classes are at the top of the files, followed by all structs. Enums are seperated into files named the same as their class, but with _enums appended to the end.

Configurations

• DumpOffsetsAndSizes (bool)

  • Whether to property offsets and sizes
  • Default: 1

• KeepMemoryLayout (bool)

  • Whether memory layouts of classes and structs should be accurate
  • This must be set to 1, if you want to use the generated headers in an actual C++ project
  • When set to 0, padding member variables will not be generated
  • Default: 0

  Warning: A value of 1 has no purpose yet as memory value is not accurate either way!

• LoadAllAssetsBeforeGeneratingCXXHeaders (bool)

  • Whether to force all assets to be loaded before generating headers
  • Default: 0

  Warning: Can require multiple gigabytes of extra memory, is not stable & will crash the game if you load past the main menu after dumping

Unreal Header Tool (UHT) Dumper

Generates Unreal Header Tool compatible C++ headers for creating a mirror .uproject for your game. The guide for using these headers can be found here.

The keybind to generate headers is by default CTRL + Numpad 9, and it can be changed in Mods/Keybinds/Scripts/main.lua.

Configurations

• IgnoreAllCoreEngineModules (bool)

  • Whether to skip generating packages that belong to the engine, particularly useful for any games that make alterations to the engine
  • Default: 0

• IgnoreEngineAndCoreUObject (bool)

  • Whether to skip generating the Engine and CoreUObject packages
  • Default: 1

• MakeAllFunctionsBlueprintCallable (bool)

  • Whether to force all UFUNCTION macros to have BlueprintCallable
  • Default: 1

  Warning: This will cause some errors in the generated headers that you will need to manually fix

• MakeAllPropertyBlueprintsReadWrite (bool)

  • Whether to force all UPROPERTY macros to have BlueprintReadWrite
  • Also forces all UPROPERTY macros to have meta=(AllowPrivateAccess=true)
  • Default: 1

• MakeEnumClassesBlueprintType (bool)

  • Whether to force UENUM macros on enums to have BlueprintType if the underlying type was implicit or uint8
  • Default: 1

  Warning: This also forces the underlying type to be uint8 where the type would otherwise be implicit

• MakeAllConfigsEngineConfig (bool)

  • Whether to force Config = Engine on all UCLASS macros that use either one of: DefaultConfig, GlobalUserConfig or ProjectUserConfig
  • Default: 1

Object Dumper

Dumps all loaded objects to the file UE4SS_ObjectDump.txt (you can turn on force loading for all assets).

The keybind to dump objects is by default CTRL + J, and can be changed in Mods/Keybinds/Scripts/main.lua.

Example output:

[000002A70F57E5C0] Function /Game/UI/Art/WidgetParts/Basic_ButtonScalable2.Basic_ButtonScalable2_C:BndEvt__Button_0_K2Node_ComponentBoundEvent_0_OnButtonClickedEvent__DelegateSignature [n: 5343AA] [c: 000002A727993A00] [or: 000002A708466980]
[000002A70F57E4E0] Function /Game/UI/Art/WidgetParts/Basic_ButtonScalable2.Basic_ButtonScalable2_C:PreConstruct [n: 4057B] [c: 000002A727993A00] [or: 000002A708466980]
[000002A70F876600] BoolProperty /Game/UI/Art/WidgetParts/Basic_ButtonScalable2.Basic_ButtonScalable2_C:PreConstruct:IsDesignTime [o: 0] [n: 4D63DB] [c: 00007FF683722CC0] [owr: 000002A70F57E4E0]

There are multiple sets of opening & closing square brackets and each set has a different meaning and the letters in this table explains what they mean.
Within the first set of brackets is the location in memory where the object or property is stored.

Configurations

• LoadAllAssetsBeforeDumpingObjects (bool)
  • Whether to force all assets to be loaded before dumping objects
  • Default: 0

  Warning: Can require multiple gigabytes of extra memory, is not stable & will crash the game if you load past the main menu after dumping

.usmap Dumper

Generate .usmap mapping files for unversioned properties.

The keybind to dump mappings is by default Ctrl + Numpad 6, and can be changed in Mods/Keybinds/Scripts/main.lua.

Thanks to OutTheShade for the original implementation.

.umap Recreation Dumper

Dump all loaded actors to the file ue4ss_static_mesh_data.csv to generate .umaps in-editor.

Two prerequisites are required to load the dumped actors in-editor to reconstruct the .umap:

• All dumped actors (static meshes, their materials/textures) must be reconstructed in the editor
• Download zMapGenBP.zip from the Releases page and follow the instructions in the Readme file inside of it

The keybind to dump mappings is by default Ctrl + Numpad 7, and can be changed in Mods/Keybinds/Scripts/main.lua.