A function that creates a thumb image from any one existing image.
Points to note:
1. you must know how to prevent escape chracters i.e. with "@" sign
eg. @"C:\Documents and Settings\naveen\My Documents\My Pictures\abc.gif"
2. you must gives the permissions to folder in which you wish to save a thumbnail image.
public void CreateThumbNail(string DesiredImageNameForThumbImage,string OrignalImagePath,string ThumbImageTargetPath,string ContentType,Int32 ThumbImageHeight, Int32 ThumbImageWidth)
{
System.Drawing.Image OrignalImage,Thumb;
string sPath;
Int32 OrignalImageHeight,OrignalImageWidth;
IntPtr ptr = new IntPtr();
sPath = ThumbImageTargetPath + "/" + DesiredImageNameForThumbImage + "." + ContentType;
OrignalImage = System.Drawing.Image.FromFile(OrignalImagePath);
OrignalImageHeight = OrignalImage.Height;
OrignalImageWidth = OrignalImage.Width ;
if ( (OrignalImageHeight > ThumbImageHeight) || (OrignalImageWidth > ThumbImageWidth))
{
Int32 diffHeight,diffWidth;
diffHeight = OrignalImageHeight-ThumbImageHeight;
diffWidth = OrignalImageWidth-ThumbImageWidth;
Double ScaleFactor;
if (diffHeight > diffWidth)
ScaleFactor = (ThumbImageHeight / OrignalImageHeight);
else
ScaleFactor = (ThumbImageWidth / OrignalImageWidth );
OrignalImageHeight *= Convert.ToInt32( ScaleFactor);
OrignalImageWidth *= Convert.ToInt32(ScaleFactor);
Thumb = OrignalImage.GetThumbnailImage(ThumbImageWidth,ThumbImageHeight,null,ptr);
Thumb.Save(sPath);
Thumb.Dispose ();
OrignalImage.Dispose();
}
}
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| Author: harminder singh 28 Jun 2005 | Member Level: Bronze Points : 0 |
This very nice article for Creating thumbnail Images.
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| Author: Pardeep Singh 28 Jun 2005 | Member Level: Gold Points : 0 |
Very Nice I was Just looking for that
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| Author: Vikas Monga 28 Jun 2005 | Member Level: Bronze Points : 0 |
its realy a valueable code. its solve problems for conversion...
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| Author: GodSpeed 23 May 2008 | Member Level: Silver Points : 2 |
really helpful, no comments and no explanation as to what is going on. Not really a tutorial is it?
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| Author: vijetha 29 May 2008 | Member Level: Gold Points : 2 |
this is really a nice code ,help full to me very much
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