NoteBook

Appearance

Example How to automatically fill and create .ini config file ​

Tested on UE 5.0.3 Nested UStruct object also works

cpp
#pragma once
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "UObject/Object.h"
#include "MyCustomConfigFileClass.generated.h"

UCLASS(Config = MyCustomConfigFile, defaultConfig)
class YOURMODULE_API UMyCustomConfigFileClass : public UObject
{
	GENERATED_BODY()
	
public:
    /*
     * Constructor
     */
	UMyCustomConfigFileClass()
	{
		const FString configPath = this->GetDefaultConfigFilename();

		if(!FPaths::FileExists(ConfigPath))
			this->SaveConfig(CPF_Config, GetData(configPath));
	}

private:
    /*
     * Private Fields
     */

	UPROPERTY(Config)
	FString TestString="MyAwesomeString";

	UPROPERTY(Config)
	bool TestBool;
};

Read Config ​

cpp

bool testBool = false;
success = GConfig->GetBool(TEXT("/Script/DefaultMyCustomConfigFile.MyCustomConfigFile"), TEXT("TestBool"), testBool, this->GetDefaultConfigFilename());
if (success && testBool)
	UE_LOG(LogTemp, Log, TEXT("Success !"));

Cleanest example ​

cpp
bool UMyCustomConfigFileClass::GetBool(const FString& propertyName, bool& result)
{
	bool success = false;

#if WITH_ENGINE
	success = GConfig->GetBool(
		ToCStr(FString::Printf(TEXT("/Script/DefaultMyCustomConfigFile.%s"), StaticConfigName())),
		*propertyName,
		result,
		GetData(ConfigPath)
	);
#endif

	return success;
}