Unreal Engine 4.26 Documentation

Unreal Engine 4.27 Documentation

Unreal Engine 5.0 Documentation

Unreal Engine 5.1 Documentation

Unreal Engine 5.2 Documentation

Unreal Engine 5.3 Documentation

Light Theme

Dark Theme

FAsyncReadRequestNull

[IAsyncReadRequest](API\Runtime\Core\Async\IAsyncReadRequest) returned from [FAsyncReadFileHandleNull](API\Runtime\Core\Async\FAsyncReadFileHandleNull); guaranteed to be a cancelled readrequest with no size or bytes when the Callback is called.

Choose your operating system:

Windows

macOS

Linux

Inheritance Hierarchy

IAsyncReadRequest

FAsyncReadRequestNull

References

Module	Core
Header	/Engine/Source/Runtime/Core/Public/Async/AsyncFileHandleNull.h
Include	#include "Async/AsyncFileHandleNull.h"

Syntax

class FAsyncReadRequestNull : public IAsyncReadRequest

Remarks

IAsyncReadRequest returned from FAsyncReadFileHandleNull; guaranteed to be a cancelled readrequest with no size or bytes when the Callback is called.

Constructors

	Name	Description
	FAsyncReadRequestNull ( FAsyncFileCallBack* InCallback, bool bInSizeRequest )

Overridden from IAsyncReadRequest

		Name	Description
	void	CancelImpl()	Cancel the request. This is a non-blocking async call and so does not ensure completion!
	void	WaitCompletionImpl ( float TimeLimitSeconds )	Waits for the request to complete, but not longer than the given time limit