Print with Dialog

Use the ShowPrintDialog method to display the settings dialog before printing the document. This can be handy for presenting GUI print settings.

Here's an example in C#:

using System;
using System.Drawing.Printing;

class Program
{
    static void Main()
    {
        // Create a PrintDocument instance
        PrintDocument printDocument = new PrintDocument();

        // Assign an event handler for the PrintPage event
        printDocument.PrintPage += new PrintPageEventHandler(PrintDocument_PrintPage);

        // Display the print dialog
        PrintDialog printDialog = new PrintDialog
        {
            Document = printDocument
        };

        // Show the dialog to the user and check if the user pressed OK
        if (printDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
        {
            // Print the document
            printDocument.Print();
        }
    }

    // Event handler responsible for printing the page
    private static void PrintDocument_PrintPage(object sender, PrintPageEventArgs e)
    {
        // Define what will be printed on the page
        string textToPrint = "Hello, world! This is a test print.";
        Font printFont = new Font("Arial", 12);

        // Specify the area to draw the string
        PointF drawLocation = new PointF(50, 50);

        // Draw the string on the page
        e.Graphics.DrawString(textToPrint, printFont, Brushes.Black, drawLocation);
    }
}

using System;
using System.Drawing.Printing;

class Program
{
    static void Main()
    {
        // Create a PrintDocument instance
        PrintDocument printDocument = new PrintDocument();

        // Assign an event handler for the PrintPage event
        printDocument.PrintPage += new PrintPageEventHandler(PrintDocument_PrintPage);

        // Display the print dialog
        PrintDialog printDialog = new PrintDialog
        {
            Document = printDocument
        };

        // Show the dialog to the user and check if the user pressed OK
        if (printDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
        {
            // Print the document
            printDocument.Print();
        }
    }

    // Event handler responsible for printing the page
    private static void PrintDocument_PrintPage(object sender, PrintPageEventArgs e)
    {
        // Define what will be printed on the page
        string textToPrint = "Hello, world! This is a test print.";
        Font printFont = new Font("Arial", 12);

        // Specify the area to draw the string
        PointF drawLocation = new PointF(50, 50);

        // Draw the string on the page
        e.Graphics.DrawString(textToPrint, printFont, Brushes.Black, drawLocation);
    }
}

Imports System
Imports System.Drawing.Printing

Friend Class Program
	Shared Sub Main()
		' Create a PrintDocument instance
		Dim printDocument As New PrintDocument()

		' Assign an event handler for the PrintPage event
		AddHandler printDocument.PrintPage, AddressOf PrintDocument_PrintPage

		' Display the print dialog
		Dim printDialog As New PrintDialog With {.Document = printDocument}

		' Show the dialog to the user and check if the user pressed OK
		If printDialog.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
			' Print the document
			printDocument.Print()
		End If
	End Sub

	' Event handler responsible for printing the page
	Private Shared Sub PrintDocument_PrintPage(ByVal sender As Object, ByVal e As PrintPageEventArgs)
		' Define what will be printed on the page
		Dim textToPrint As String = "Hello, world! This is a test print."
		Dim printFont As New Font("Arial", 12)

		' Specify the area to draw the string
		Dim drawLocation As New PointF(50, 50)

		' Draw the string on the page
		e.Graphics.DrawString(textToPrint, printFont, Brushes.Black, drawLocation)
	End Sub
End Class

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Explanation

PrintDocument Creation: We create an instance of PrintDocument, which is used to handle the document to be printed.
Event Handler: We attach an event handler (PrintDocument_PrintPage) to manage the actions to be taken when a page is printed.
PrintDialog Setup: A PrintDialog is initialized and assigned to the PrintDocument. This dialog allows users to configure their printing preferences.
Executing Print: We show the print dialog using ShowDialog(). If the user confirms the settings by clicking OK, the document is sent to the printer using printDocument.Print().
PrintPage Event: Within the event handler (PrintDocument_PrintPage), we define what content appears on the printed page using graphics methods, such as DrawString, to render text onto the page.