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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