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Posted 1 Sep 2005

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NGif, Animated GIF Encoder for .NET

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4.02/5 (57 votes)
1 Sep 2005CPOL
Create animated GIF images using C#.

Sample Image - NGif.gif

Introduction

Because .NET Framework can't create animated GIF images, NGif provides a way to create GIF animations in the .NET framework. It can create an animated GIF from several images and extract images from an animated GIF.

Using the code

C#
/* create Gif */
//you should replace filepath
String [] imageFilePaths = new String[]{"c:\\01.png","c:\\02.png","c:\\03.png"}; 
String outputFilePath = "c:\\test.gif";
AnimatedGifEncoder e = new AnimatedGifEncoder();
e.Start( outputFilePath );
e.SetDelay(500);
//-1:no repeat,0:always repeat
e.SetRepeat(0);
for (int i = 0, count = imageFilePaths.Length; i < count; i++ ) 
{
 e.AddFrame( Image.FromFile( imageFilePaths[i] ) );
}
e.Finish();
/* extract Gif */
string outputPath = "c:\\";
GifDecoder gifDecoder = new GifDecoder();
gifDecoder.Read( "c:\\test.gif" );
for ( int i = 0, count = gifDecoder.GetFrameCount(); i < count; i++ ) 
{
 Image frame = gifDecoder.GetFrame( i ); // frame i
 frame.Save( outputPath + Guid.NewGuid().ToString() 
                       + ".png", ImageFormat.Png );
}

Points of Interest

Use Stream to replace BinaryWriter when you write a fixed-byte structured binary file.

History

  • 31 Aug 2005: Draft.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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Comments and Discussions

 
NewsBugfixed version (updated link) Pin
avianbc6-Jan-22 11:18
avianbc6-Jan-22 11:18 
QuestionMessage Closed Pin
11-Mar-19 21:14
SanjoyNath@GeometrifyingTrigonometry11-Mar-19 21:14 
Questionconvert video to gif like does whatsapp ? Pin
kiquenet.com4-Mar-17 2:50
professionalkiquenet.com4-Mar-17 2:50 
QuestionA major BUG in this project Pin
Member 421131021-Apr-16 22:02
Member 421131021-Apr-16 22:02 
BugTranspraency Support Pin
Nofuzy10-Sep-15 9:37
Nofuzy10-Sep-15 9:37 
QuestionSet Different Delay times Pin
Nofuzy21-Aug-15 16:04
Nofuzy21-Aug-15 16:04 
AnswerRe: Set Different Delay times Pin
John Schroedl10-Sep-15 9:16
professionalJohn Schroedl10-Sep-15 9:16 
QuestionNice but slow Pin
Andy Cartwright20-Aug-15 20:43
Andy Cartwright20-Aug-15 20:43 
SuggestionThis works, but there's a better and much faster library (Bumpkit) Pin
Member 112479846-Mar-15 1:59
professionalMember 112479846-Mar-15 1:59 
GeneralRe: This works, but there's a better and much faster library (Bumpkit) Pin
kiquenet.com4-Mar-17 2:53
professionalkiquenet.com4-Mar-17 2:53 
GeneralMy vote of 1 Pin
Member 1007116316-Aug-14 3:37
Member 1007116316-Aug-14 3:37 
QuestionArithmetic operation resulted in an overflow. Pin
Joshua Galloway8-Aug-14 5:53
Joshua Galloway8-Aug-14 5:53 
QuestionGreat tool, saved me a lot of work! Pin
mingonn29-Jan-14 14:58
mingonn29-Jan-14 14:58 
GeneralGreate Job :) Pin
VinaymSharma12-Dec-13 1:51
VinaymSharma12-Dec-13 1:51 
Questionsize limit? Pin
Member 39966278-Nov-13 10:47
Member 39966278-Nov-13 10:47 
AnswerRe: size limit? Pin
Nicke Manarin21-Feb-14 12:43
Nicke Manarin21-Feb-14 12:43 
AnswerRe: size limit? Pin
Member 106623506-Jun-14 10:42
Member 106623506-Jun-14 10:42 
QuestionFileStream vs Stream Pin
Member 1033860916-Oct-13 7:32
Member 1033860916-Oct-13 7:32 
AnswerRe: FileStream vs Stream Pin
Nicke Manarin22-Oct-13 9:01
Nicke Manarin22-Oct-13 9:01 
QuestionI get black backgrounds. Has anyone ever come up with a solution for this? Pin
Member 946120617-Sep-13 21:39
Member 946120617-Sep-13 21:39 
SuggestionDelay method Pin
Sylvainguer17-Jul-13 22:58
Sylvainguer17-Jul-13 22:58 
QuestionHow do i add this to my project? Pin
droidap24-May-13 9:16
droidap24-May-13 9:16 
AnswerRe: How do i add this to my project? Pin
Member 1029123023-Sep-13 1:33
Member 1029123023-Sep-13 1:33 
QuestionI created a new dll file which is a wrapper from c++ of a gif animation if you want Pin
chocolade18-May-13 5:32
chocolade18-May-13 5:32 
QuestionSystem.Windows.Media.Imaging.GifBitmapEncoder Pin
Brian Herbert16-May-13 13:14
Brian Herbert16-May-13 13:14 

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