Private Sub convertToImageButton_Click(ByVal sender As Object, ByVal e As EventArgs) Handles convertToImageButton.Click ' Create a HTML to Image converter object with default settings Dim htmlToImageConverter As New HtmlToImageConverter() ' Set license key received after purchase to use the converter in licensed mode ' Leave it not set to use the converter in demo mode htmlToImageConverter.LicenseKey = "fvDh8eDx4fHg4P/h8eLg/+Dj/+jo6Og=" ' Set HTML Viewer width in pixels which is the equivalent in converter of the browser window width htmlToImageConverter.HtmlViewerWidth = Integer.Parse(htmlViewerWidthTextBox.Text) ' Set HTML viewer height in pixels to convert the top part of a HTML page ' Leave it not set to convert the entire HTML If htmlViewerHeightTextBox.Text.Length > 0 Then htmlToImageConverter.HtmlViewerHeight = Integer.Parse(htmlViewerHeightTextBox.Text) End If ' Set if the created image has a transparent background htmlToImageConverter.TransparentBackground = If(SelectedImageFormat() Is System.Drawing.Imaging.ImageFormat.Png, transparentBackgroundCheckBox.Checked, False) ' Set the maximum time in seconds to wait for HTML page to be loaded ' Leave it not set for a default 60 seconds maximum wait time htmlToImageConverter.NavigationTimeout = Integer.Parse(navigationTimeoutTextBox.Text) ' Set an adddional delay in seconds to wait for JavaScript or AJAX calls after page load completed ' Set this property to 0 if you don't need to wait for such asynchcronous operations to finish If conversionDelayTextBox.Text.Length > 0 Then htmlToImageConverter.ConversionDelay = Integer.Parse(conversionDelayTextBox.Text) End If Cursor = Cursors.WaitCursor ' Convert HTML to Image using the settings above Dim outImageFile As String = "DemoAppFiles\Output\HTML_to_Image\HTML_to_Image." & imageFormatComboBox.SelectedItem.ToString().ToLower() Dim imageTiles() As Image = Nothing Try If convertUrlRadioButton.Checked Then Dim url As String = urlTextBox.Text ' Convert the HTML page given by an URL to a set of Image objects imageTiles = htmlToImageConverter.ConvertUrlToImageTiles(url) Else Dim htmlString As String = htmlStringTextBox.Text Dim baseUrl As String = baseUrlTextBox.Text ' Convert a HTML string with a base URL to a set of Image objects imageTiles = htmlToImageConverter.ConvertHtmlToImageTiles(htmlString, baseUrl) End If ' Save the first image tile to a memory buffer Dim outImage As Image = imageTiles(0) ' Create a memory stream where to save the image Dim imageOutputStream As New System.IO.MemoryStream() ' Save the image to memory stream outImage.Save(imageOutputStream, SelectedImageFormat()) ' Write the memory stream to a memory buffer imageOutputStream.Position = 0 Dim outImageBuffer() As Byte = imageOutputStream.ToArray() ' Close the output memory stream imageOutputStream.Close() ' Write the memory buffer in an image file System.IO.File.WriteAllBytes(outImageFile, outImageBuffer) Catch ex As Exception ' The HTML to Image conversion failed MessageBox.Show(String.Format("HTML to Image Error. {0}", ex.Message)) Return Finally Cursor = Cursors.Arrow End Try ' Open the created image in the default viewer for image format Try Process.Start(outImageFile) Catch ex As Exception MessageBox.Show(String.Format("Cannot open created image file '{0}'. {1}", outImageFile, ex.Message)) End Try End Sub