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Convert Images to SWF Format Using C#

| Friday, April 8, 2011
Introduction:

In this article we will see how to convert our JPEG images to .swf format. For this we are using a third party's DLL which will convert our images to a .swf movie. For viewing the movies you can download the swf player.

Background:

Actually the DLL to convert images to swf I found using a Google search. In this article I'm using DLL files as given below to do our work.

log4net
SwfDotNet
SharpZipLib

Follow the steps given below to do our work.

Step 1:

Create a Windows Form application in C#. Add the reference to the DLLs that I have put in the bin folder of the attached source as well a "using" for this namespace in our using statements like:

using log4net;
using SwfDotNet.IO;
using SwfDotNet.IO.Tags;
using SwfDotNet.IO.Tags.Types;

Step 2:

Design the normal form for taking input filename and output path for our work with OpenFile Dialog and SaveFile Dialog.

Step 3:

In the click of the create button write the following code to convert the input file to .swf format and store it to the specified location.

try
            {
                if (File.Exists(inputfilename) == false)
                {
                    MessageBox.Show("Can not open Image file" + inputfilename);
                    return;
                }
                //First load the picture as System.Drawing.Image
                Image img = Image.FromFile(inputfilename);
                int posX = 0;
                int posY = 0;
                int imgWidth = img.Width;
                int imgHeight = img.Height;
                //Create a new Swf instance
                Swf swf = new Swf();
                //Set size in inch unit (1 pixel = 20 inches)
                swf.Size = new Rect(0, 0, (posX + imgWidth) * 20, (posY + imgHeight) * 20);
                swf.Version = 7;    //Version 7 (for compression, must be > 5)
                swf.Header.Signature = "CWS";   //Set the signature to compress the swf
                //Set the background color tag as white
                swf.Tags.Add(new SetBackgroundColorTag(255, 255, 255));
                //Set the jpeg tag
                ushort jpegId = swf.GetNewDefineId();
                //Load the jped directly from an image
                //In fact, this line will load the jpeg data in the file as 
                //a library element only  
                swf.Tags.Add(DefineBitsJpeg2Tag.FromImage(jpegId, img));

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