How to print image from RadImageEditor

Environment

Product Version	Product	Author
2021.2.511	RadImageEditor for WinForms	Nadya Karaivanova

Description

RadImageEditor does not support printing out of the box. However, you can easily achieve this by adding an additional button and implement the print functionality in RadImageEditor using PrintDocument.

This article demonstrates how to achieve printing in RadImageEditor.

Solution

Let's first create the print button, add it to the CommandsElement and handle it's Click event:

public RadForm1()
{
    InitializeComponent();
    RadButtonElement printButton = new RadButtonElement();
    printButton.Image = Resources.printer_icon;
    printButton.Click += this.PrintButton_Click;

    var buttonContainer = radImageEditor1.ImageEditorElement.CommandsElement.TopCommandsStackElement;
    buttonContainer.Children.RemoveAt(3);
    buttonContainer.Children.RemoveAt(2);
    buttonContainer.Children.Add(printButton);
}

Public Sub New()
    InitializeComponent()
    Dim printButton As RadButtonElement = New RadButtonElement()
    printButton.Image = Resources.printer_icon
    AddHandler, printButton.Click, AddressOf Me.PrintButton_Click
    Dim buttonContainer = radImageEditor1.ImageEditorElement.CommandsElement.TopCommandsStackElement
    buttonContainer.Children.RemoveAt(3)
    buttonContainer.Children.RemoveAt(2)
    buttonContainer.Children.Add(printButton)
End Sub

Then, in the print button's Click event you can print the PrintDocument that contains the current image from RadImageEditor:

private void PrintButton_Click(object sender, EventArgs e)
{
    PrintDocument printDocument = new PrintDocument();
    printDocument.PrintPage += PrintPage;
    printDocument.Print();
}
private void PrintPage(object o, PrintPageEventArgs e)
{
    System.Drawing.Image img = radImageEditor1.CurrentBitmap;
    Point loc = new Point(100, 100);
    e.Graphics.DrawImage(img, loc);
}

    Private Sub PrintButton_Click(ByVal sender As Object, ByVal e As EventArgs)
        Dim printDocument As PrintDocument = New PrintDocument()
        AddHandler printDocument.PrintPage, AddressOf PrintPage
        printDocument.Print()
    End Sub

    Private Sub PrintPage(ByVal o As Object, ByVal e As PrintPageEventArgs)
        Dim img As System.Drawing.Image = radImageEditor1.CurrentBitmap
        Dim loc As Point = New Point(100, 100)
        e.Graphics.DrawImage(img, loc)
    End Sub