Important Update
These sample source codes on this page below are demonstrating how to make slideshow from files in folder (vb) in ASP.NET. 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 files in folder (vb) in ASP.NET.
This rich sample source code in ASP.NET for ByteScout Image To Video SDK includes the number of functions and options you should do calling the API to make slideshow from files in folder (vb). In order to implement the functionality, you should copy and paste this code for ASP.NET below into your code editor with your app, compile and run your application. Further enhancement of the code will make it more vigorous.
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<%@ 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>Perform Slideshow</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="ButtonPerformSlideShow" runat="server" Text="Perform SlideShow" />
</div>
</form>
</body>
</html>
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'------------------------------------------------------------------------------
' <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>
'''ButtonPerformSlideShow control.
'''</summary>
'''<remarks>
'''Auto-generated field.
'''To modify move field declaration from designer file to code-behind file.
'''</remarks>
Protected WithEvents ButtonPerformSlideShow As Global.System.Web.UI.WebControls.Button
End Class
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Imports System.IO
Imports BytescoutImageToVideo
Partial Public Class _Default
Inherits System.Web.UI.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
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
End Sub
Protected Sub ButtonPerformSlideShow_Click(sender As Object, e As EventArgs) Handles ButtonPerformSlideShow.Click
' Create BytescoutImageToVideoLib.ImageToVideo object instance
Dim converter As New ImageToVideo()
' Activate the component
converter.RegistrationName = "demo"
converter.RegistrationKey = "demo"
Dim outputVideoFile As String = Path.GetTempPath() + "result.wmv"
Dim fileEntries As String() = Directory.GetFiles(Server.MapPath("~/App_Data/images/"))
Dim fileName As String
For Each fileName In fileEntries
' Add images and set the duration for every slide
Dim slide As Slide
slide = converter.AddImageFromFileName(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 generated 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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<?xml version="1.0"?>
<configuration>
<appSettings/>
<connectionStrings/>
<system.web>
<!--
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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