ByteScout Image To Video SDK - ASP.NET - Make Slideshow From Uploaded Files (VB) - ByteScout

ByteScout Image To Video SDK – ASP.NET – Make Slideshow From Uploaded Files (VB)

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How to make slideshow from uploaded files (vb) in ASP.NET using ByteScout Image To Video SDK

How to make slideshow from uploaded files (vb) in ASP.NET

On this page you will learn from code samples for programming in ASP.NET.Writing of the code to make slideshow from uploaded files (vb) in ASP.NET can be done by developers of any level using ByteScout Image To Video SDK. ByteScout Image To Video SDK: the software development kit that can take a set of images and generate video slide show from them. Includes built-in support for 100+ of 2-D and 3-D slide transitions effects. Supports output in WMV, AVI, WEBM video formats. It can make slideshow from uploaded files (vb) in ASP.NET.

The SDK samples like this one below explain how to quickly make your application do make slideshow from uploaded files (vb) in ASP.NET with the help of ByteScout Image To Video SDK. In your ASP.NET project or application you may simply copy & paste the code and then run your app! Code testing will allow the function to be tested and work properly with your data.

Trial version of ByteScout Image To Video SDK can be downloaded for free from our website. It also includes source code samples for ASP.NET and other programming languages.

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Default.aspx
      
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="SimpleSlideshow._Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>Slideshow from uploaded images</title> </head> <body> <form id="form1" runat="server"> <div> Click browse button to upload an image:<br /> <br /> <asp:FileUpload ID="FileUpload1" runat="server" Width="255px" /> <br /> <br /> <asp:Button ID="ButtonUpload" runat="server" Text="Upload" Width="90px" /> <br /> <br /> Uploaded images:<br /> <asp:ListBox ID="ListBoxUploadedImages" runat="server" Height="137px" Width="258px"></asp:ListBox> <br /> <br /> <asp:Button ID="ButtonMakeVideo" runat="server" Text="MakeVideo" Width="257px" /> </div> </form> </body> </html>

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Default.aspx.designer.vb
      
'------------------------------------------------------------------------------ ' <auto-generated> ' This code was generated by a tool. ' ' Changes to this file may cause incorrect behavior and will be lost if ' the code is regenerated. ' </auto-generated> '------------------------------------------------------------------------------ Option Strict On Option Explicit On Partial Public Class _Default '''<summary> '''form1 control. '''</summary> '''<remarks> '''Auto-generated field. '''To modify move field declaration from designer file to code-behind file. '''</remarks> Protected WithEvents form1 As Global.System.Web.UI.HtmlControls.HtmlForm '''<summary> '''FileUpload1 control. '''</summary> '''<remarks> '''Auto-generated field. '''To modify move field declaration from designer file to code-behind file. '''</remarks> Protected WithEvents FileUpload1 As Global.System.Web.UI.WebControls.FileUpload '''<summary> '''ButtonUpload control. '''</summary> '''<remarks> '''Auto-generated field. '''To modify move field declaration from designer file to code-behind file. '''</remarks> Protected WithEvents ButtonUpload As Global.System.Web.UI.WebControls.Button '''<summary> '''ListBoxUploadedImages control. '''</summary> '''<remarks> '''Auto-generated field. '''To modify move field declaration from designer file to code-behind file. '''</remarks> Protected WithEvents ListBoxUploadedImages As Global.System.Web.UI.WebControls.ListBox '''<summary> '''ButtonMakeVideo control. '''</summary> '''<remarks> '''Auto-generated field. '''To modify move field declaration from designer file to code-behind file. '''</remarks> Protected WithEvents ButtonMakeVideo As Global.System.Web.UI.WebControls.Button End Class

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Default.aspx.vb
      
Imports System.IO Imports BytescoutImageToVideo Partial Public Class _Default Inherits Page ' IF YOU SEE TEMPORARY FOLDER ACCESS ERRORS: ' Temporary folder access is required for web application when you use ByteScout SDK in it. ' If you are getting errors related to the access to temporary folder like "Access to the path 'C:\Windows\TEMP\... is denied" then you need to add permission for this temporary folder to make ByteScout SDK working on that machine and IIS configuration because ByteScout SDK requires access to temp folder to cache some of its data for more efficient work. ' SOLUTION: ' If your IIS Application Pool has "Load User Profile" option enabled the IIS provides access to user's temp folder. Check user's temporary folder ' If you are running Web Application under an impersonated account or IIS_IUSRS group, IIS may redirect all requests into separate temp folder like "c:\temp\". ' In this case ' - check the User or User Group your web application is running under ' - then add permissions for this User or User Group to read and write into that temp folder (c:\temp or c:\windows\temp\ folder) ' - restart your web application and try again Dim uploadPath As String = "\uploads\" Dim outputPath As String = "\output\" Protected Sub ButtonUpload_Click(sender As Object, e As EventArgs) Handles ButtonUpload.Click If FileUpload1.HasFile Then Dim fileName As String = FileUpload1.FileName uploadPath += fileName FileUpload1.SaveAs(Server.MapPath(uploadPath)) ListBoxUploadedImages.Items.Add(FileUpload1.FileName) End If End Sub Protected Sub ButtonMakeVideo_Click(sender As Object, e As EventArgs) Handles ButtonMakeVideo.Click ' Create BytescoutImageToVideoLib.ImageToVideo object instance Dim converter As New ImageToVideo() ' Activate the component converter.RegistrationName = "demo" converter.RegistrationKey = "demo" Dim outputVideoFile As String = Server.MapPath(outputPath + "result.wmv") ' Add images to converter and set the duration for every slide For Each item As ListItem In ListBoxUploadedImages.Items Dim fileName As String = item.Value Dim slide As Slide slide = converter.AddImageFromFileName(Server.MapPath(uploadPath + fileName)) slide.Duration = 2000 ' 2000ms = 2s Next ' Set output video size converter.OutputWidth = 640 converter.OutputHeight = 480 ' Set output video file name converter.OutputVideoFileName = outputVideoFile ' Run the conversion converter.RunAndWait() ' Release resources System.Runtime.InteropServices.Marshal.ReleaseComObject(converter) converter = Nothing ' Show filename of result file Response.Clear() Response.ContentType = "text/html" If File.Exists(outputVideoFile) Then Response.Write("Result video file: <b>" + outputVideoFile + "</b>") Else Response.Write("Conversion failed. Error information: " + converter.LastError) End If Response.End() End Sub End Class

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Web.config
      
<?xml version="1.0"?> <configuration> <appSettings/> <connectionStrings/> <system.web> <httpRuntime maxRequestLength="1048576" /> <!-- Set compilation debug="true" to insert debugging symbols into the compiled page. Because this affects performance, set this value to true only during development. Visual Basic options: Set strict="true" to disallow all data type conversions where data loss can occur. Set explicit="true" to force declaration of all variables. --> <compilation debug="true" strict="false" explicit="true" targetFramework="4.0"/> <pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"> <namespaces> <clear/> <add namespace="System"/> <add namespace="System.Collections"/> <add namespace="System.Collections.Specialized"/> <add namespace="System.Configuration"/> <add namespace="System.Text"/> <add namespace="System.Text.RegularExpressions"/> <add namespace="System.Web"/> <add namespace="System.Web.Caching"/> <add namespace="System.Web.SessionState"/> <add namespace="System.Web.Security"/> <add namespace="System.Web.Profile"/> <add namespace="System.Web.UI"/> <add namespace="System.Web.UI.WebControls"/> <add namespace="System.Web.UI.WebControls.WebParts"/> <add namespace="System.Web.UI.HtmlControls"/> </namespaces> </pages> <!-- The <authentication> section enables configuration of the security authentication mode used by ASP.NET to identify an incoming user. --> <authentication mode="Windows"/> <!-- The <customErrors> section enables configuration of what to do if/when an unhandled error occurs during the execution of a request. Specifically, it enables developers to configure html error pages to be displayed in place of a error stack trace. <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm"> <error statusCode="403" redirect="NoAccess.htm" /> <error statusCode="404" redirect="FileNotFound.htm" /> </customErrors> --> </system.web> </configuration>

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