How to use Async and Multithreading

// Importing the necessary namespaces.
using IronOcr;
using System;

// Instantiate IronTesseract, the OCR engine used for recognizing text.
var ocr = new IronTesseract();

// Using a using statement for OcrInput ensures proper resource management.
// OcrInput is used to process various formats, including PDFs.
using (var input = new OcrInput(@"example.pdf")) // Specifying the path of the input PDF file.
{
    // Read the PDF input to extract text.
    var result = ocr.Read(input);
    
    // Output the extracted text result to the console.
    Console.WriteLine(result.Text);
}

' Importing the necessary namespaces.
Imports IronOcr
Imports System

' Instantiate IronTesseract, the OCR engine used for recognizing text.
Private ocr = New IronTesseract()

' Using a using statement for OcrInput ensures proper resource management.
' OcrInput is used to process various formats, including PDFs.
Using input = New OcrInput("example.pdf") ' Specifying the path of the input PDF file.
	' Read the PDF input to extract text.
	Dim result = ocr.Read(input)

	' Output the extracted text result to the console.
	Console.WriteLine(result.Text)
End Using

using System;
using System.Threading;
using System.Threading.Tasks;
using IronOcr;

// Creating an instance of IronTesseract for OCR processing
IronTesseract ocr = new IronTesseract();

// Loading a large PDF for OCR processing
OcrPdfInput largePdf = new OcrPdfInput("chapter1.pdf");

// Defining a function that reads the PDF using the OCR engine and returns the result
Func<OcrResult> reader = () =>
{
    return ocr.Read(largePdf);
};

// Creating a task factory to run the OCR processing in a task
Task<OcrResult> ocrTask = Task.Factory.StartNew(reader);

// Continue with other tasks while OCR is in progress
DoOtherTasks();

// Await the OCR task to ensure that the processing completes
ocrTask.Wait();
OcrResult result = ocrTask.Result;

// Print the OCR results
Console.WriteLine($"##### OCR RESULTS ######\n{result.Text}");

// Clean up resources by disposing of them
largePdf.Dispose();

// Method to simulate other tasks being performed while the OCR is in progress
static void DoOtherTasks()
{
    Console.WriteLine("Performing other tasks...");
    Thread.Sleep(2000); // Simulating work for 2000 milliseconds
}

Imports Microsoft.VisualBasic
Imports System
Imports System.Threading
Imports System.Threading.Tasks
Imports IronOcr

' Creating an instance of IronTesseract for OCR processing
Private ocr As New IronTesseract()

' Loading a large PDF for OCR processing
Private largePdf As New OcrPdfInput("chapter1.pdf")

' Defining a function that reads the PDF using the OCR engine and returns the result
Private reader As Func(Of OcrResult) = Function()
	Return ocr.Read(largePdf)
End Function

' Creating a task factory to run the OCR processing in a task
Private ocrTask As Task(Of OcrResult) = Task.Factory.StartNew(reader)

' Continue with other tasks while OCR is in progress
DoOtherTasks()

' Await the OCR task to ensure that the processing completes
ocrTask.Wait()
Dim result As OcrResult = ocrTask.Result

' Print the OCR results
Console.WriteLine($"##### OCR RESULTS ######" & vbLf & "{result.Text}")

' Clean up resources by disposing of them
largePdf.Dispose()

' Method to simulate other tasks being performed while the OCR is in progress
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
'static void DoOtherTasks()
'{
'	Console.WriteLine("Performing other tasks...");
'	Thread.Sleep(2000); ' Simulating work for 2000 milliseconds
'}

using IronOcr;
using System;
using System.Threading.Tasks;

// Instantiate IronTesseract which will be used to recognize text from PDFs
IronTesseract ocr = new IronTesseract();

// Create an asynchronous task to encapsulate the OCR process
async Task PerformOcrAsync()
{
    // Open the PDF file using OcrPdfInput and ensure proper disposal with 'using'
    using (OcrPdfInput largePdf = new OcrPdfInput("PDFs/example.pdf"))
    {
        // Use ReadAsync to perform OCR on the PDF, capturing the result
        var result = await ocr.ReadAsync(largePdf);

        // Simulate performing other tasks while OCR is being processed
        DoOtherTasks();

        // Output the OCR results to the console
        Console.WriteLine("##### OCR RESULTS #####");
        Console.WriteLine(result.Text);
    }
}

// Run the OCR task, ensuring proper asynchronous execution
await PerformOcrAsync();

// Method to simulate other tasks being performed while OCR is in progress
static void DoOtherTasks()
{
    Console.WriteLine("Performing other tasks...");
    System.Threading.Thread.Sleep(2000); // Simulating work for 2000 milliseconds
}

Imports IronOcr
Imports System
Imports System.Threading.Tasks

' Instantiate IronTesseract which will be used to recognize text from PDFs
Private ocr As New IronTesseract()

' Create an asynchronous task to encapsulate the OCR process
Async Function PerformOcrAsync() As Task
	' Open the PDF file using OcrPdfInput and ensure proper disposal with 'using'
	Using largePdf As New OcrPdfInput("PDFs/example.pdf")
		' Use ReadAsync to perform OCR on the PDF, capturing the result
		Dim result = Await ocr.ReadAsync(largePdf)

		' Simulate performing other tasks while OCR is being processed
		DoOtherTasks()

		' Output the OCR results to the console
		Console.WriteLine("##### OCR RESULTS #####")
		Console.WriteLine(result.Text)
	End Using
End Function

' Run the OCR task, ensuring proper asynchronous execution
Await PerformOcrAsync()

' Method to simulate other tasks being performed while OCR is in progress
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
'static void DoOtherTasks()
'{
'	Console.WriteLine("Performing other tasks...");
'	System.Threading.Thread.Sleep(2000); ' Simulating work for 2000 milliseconds
'}