---
title: "QuartzUIEditorDevTools: declaration reference"
description: "Quartz UI 0.57.0-dev: QuartzUIEditorDevTools: declaration reference. Source-reviewed guidance, usage and limitations."
status: approved
visibility: public
sourceRevision: fe5b709ec900e282b50e58b819a25041945005f9
reviewedAt: 2026-09-24
---

# QuartzUIEditorDevTools: declaration reference

> **0.57.0-dev · beta source documentation.** Native, Blueprint, Editor and rendering examples are source-reviewed, not executed in Unreal during this scan. See [validation and limits](https://betterbuilt.games/docs/quartz-ui/evidence).

Pinned source (source: `Source/QuartzUIEditor/Public/QuartzUIEditorDevTools.h`) · [integration recipe](https://betterbuilt.games/docs/quartz-ui/inventory#quartzuieditordevtools) · [practical guide](https://betterbuilt.games/docs/quartz-ui/tools-shipping)

## FQuartzUIEditorDevToolsTarget

**Editor type.** Editor Dev Tools Target: a declared type in live browser target discovery and inspector launch; use its exact fields/operations below.

**Prerequisites / integration:** Installed source plugin; Editor tools additionally require a compiled compatible host Editor target. Use the [QuartzUIEditorDevTools recipe](https://betterbuilt.games/docs/quartz-ui/inventory#quartzuieditordevtools) in the host module `QuartzUIEditor`.

**Minimal example / lifecycle:** Tools > Quartz UI > Open DevTools after PIE creates a page. Async discovery cancels on module teardown.

**Avoid:** Counting a blank inspector or port log as a passed connection. Match the exact declaration below; dependent DTOs/enums are values used by this owner, not independent systems.

Exact source line (source: `Source/QuartzUIEditor/Public/QuartzUIEditorDevTools.h#L5`)

## FQuartzUIEditorDevTools

**Editor type.** Pure policy helpers shared by the editor module and automation.

**Prerequisites / integration:** Installed source plugin; Editor tools additionally require a compiled compatible host Editor target. Use the [QuartzUIEditorDevTools recipe](https://betterbuilt.games/docs/quartz-ui/inventory#quartzuieditordevtools) in the host module `QuartzUIEditor`.

**Minimal example / lifecycle:** Tools > Quartz UI > Open DevTools after PIE creates a page. Async discovery cancels on module teardown.

**Avoid:** Counting a blank inspector or port log as a passed connection. Match the exact declaration below; dependent DTOs/enums are values used by this owner, not independent systems.

Exact source line (source: `Source/QuartzUIEditor/Public/QuartzUIEditorDevTools.h#L13`)

## Complete header

Source snapshot, not an additional example. Unreal annotations distinguish exposed Blueprint nodes from native-only/private methods.

```cpp
#pragma once

#include "CoreMinimal.h"

struct QUARTZUIEDITOR_API FQuartzUIEditorDevToolsTarget
{
	FString Title;
	FString PageUrl;
	FString InspectorUrl;
};

/** Pure policy helpers shared by the editor module and automation. */
class QUARTZUIEDITOR_API FQuartzUIEditorDevTools final
{
public:
	static constexpr uint16 DefaultPort = 9222;

	static uint16 SanitizePort(int32 Port);
	static FString MakeUrl(uint16 Port);
	static FString MakeDiscoveryUrl(uint16 Port);
	/** Reads CEF's supported discovery endpoint; never relies on its optional HTML index. */
	static bool ParseTargets(const FString& Json, uint16 Port, TArray<FQuartzUIEditorDevToolsTarget>& OutTargets);
	static FString MakeCommandLineArgument(uint16 Port);
	static bool TryParsePort(const FString& CommandLine, uint16& OutPort);

	/** Preserves an existing -cefdebug value or appends the requested port before CEF initializes. */
	static uint16 EnsureCommandLinePort(uint16 RequestedPort);
};
```

Canonical HTML: https://betterbuilt.games/docs/quartz-ui/reference-quartzuieditordevtools