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Posted 1 Sep 2005
Licenced CPOL

NGif, Animated GIF Encoder for .NET

, 1 Sep 2005
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Create animated GIF images using C#.

Sample Image - NGif.gif


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

/* 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 );
//-1:no repeat,0:always repeat
for (int i = 0, count = imageFilePaths.Length; i < count; i++ ) 
 e.AddFrame( Image.FromFile( imageFilePaths[i] ) );
/* 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.


  • 31 Aug 2005: Draft.


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

GeneralBug? Net CF Pin
Hoar Wu31-May-07 15:55
memberHoar Wu31-May-07 15:55 
GeneralRe: Bug? Net CF Pin
chuanchu13-Aug-07 15:12
memberchuanchu13-Aug-07 15:12 
GeneralRe: Bug? Net CF Pin
nixkuroi7-Jun-14 14:44
membernixkuroi7-Jun-14 14:44 
QuestionHas anybody been able to optimize this code? Pin
SubodhShakya23-Apr-07 20:50
memberSubodhShakya23-Apr-07 20:50 
AnswerRe: Has anybody been able to optimize this code? Pin
Ephoy9-May-07 1:29
memberEphoy9-May-07 1:29 
GeneralRe: Has anybody been able to optimize this code? Pin
kitkatrobins24-Sep-07 3:32
memberkitkatrobins24-Sep-07 3:32 
QuestionRe: Has anybody been able to optimize this code? Pin
Ephoy14-Oct-07 7:22
memberEphoy14-Oct-07 7:22 
AnswerRe: Has anybody been able to optimize this code? Pin
kitkatrobins14-Oct-07 23:04
memberkitkatrobins14-Oct-07 23:04 

I've managed to do it now Smile | :)
GeneralRe: Has anybody been able to optimize this code? Pin
TODarkone18-Nov-07 9:15
memberTODarkone18-Nov-07 9:15 
QuestionPlay a gif in a Form? Pin
anderslundsgard22-Mar-07 21:41
memberanderslundsgard22-Mar-07 21:41 
AnswerRe: Play a gif in a Form? Pin
yuxuetaoxp8-Jan-08 3:21
memberyuxuetaoxp8-Jan-08 3:21 
GeneralLZW Patent No. 4,558,302 Pin
Eric Paul Schneider9-Mar-07 17:53
memberEric Paul Schneider9-Mar-07 17:53 
GeneralRe: LZW Patent No. 4,558,302 Pin
Vlasta_20-Mar-07 1:59
memberVlasta_20-Mar-07 1:59 
GeneralRe: LZW Patent No. 4,558,302 Pin
Mons00n22-Mar-07 10:14
memberMons00n22-Mar-07 10:14 
GeneralBtw, this is awesome Pin
dB.19-Feb-07 12:12
memberdB.19-Feb-07 12:12 
GeneralBug: loopcount should be initialized at -1 Pin
dB.19-Feb-07 11:36
memberdB.19-Feb-07 11:36 
GeneralResizing an animated GIF Pin
dB.19-Feb-07 11:32
memberdB.19-Feb-07 11:32 
GeneralAccess to the path "c:\test.gif" is denied. Pin
saikatchoudhury20-Dec-06 20:43
membersaikatchoudhury20-Dec-06 20:43 
QuestionRelease as open source project? PinPopular
jongalloway16-Aug-06 11:33
memberjongalloway16-Aug-06 11:33 
General[Message Deleted] Pin
Damian Wood2-Jul-06 3:35
memberDamian Wood2-Jul-06 3:35 
GeneralRe: Solution for last 2 pixels of a frame being white Pin
BenBearChen24-Aug-06 18:10
memberBenBearChen24-Aug-06 18:10 
GeneralAnother Solution ! be tested! Pin
tianlupan224-Aug-06 21:31
membertianlupan224-Aug-06 21:31 
GeneralBUG! Last pixel (bottom-right) always white! (+) Pin
dtrofimov25-Feb-06 9:57
memberdtrofimov25-Feb-06 9:57 
GeneralRe: BUG! Last pixel (bottom-right) always white! (+) Pin
morhost28-Feb-12 4:45
membermorhost28-Feb-12 4:45 
QuestionBottom Right Corner Problem? Pin
RipplingCreek4-Feb-06 8:07
memberRipplingCreek4-Feb-06 8:07 

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