displaying the thumbnail of the image

Question

i have a link inserted into the database , the link is of an image & i want to show the thumbnail of the image  on the screen

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| http://geekswithblogs.net/akshaylamba/ | Student , XI Akshay Deep Lamba

Answer 1

To create thumbnail of an image use the below code. I assume you already have an image opened in the memory stream or saved in the local temp folder.

Image Img = ImageFromFile(“D:\\Wallpapers\\a.jpg”);
Image thumb = Img.GetThumbnailImage(64,64, Image.GetThumbnailImageAbort(ThumbnailCallBack),IntPtr.Zero);

Public bool ThumbnailCallBack()
{
                Return true;
}

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Answer 2

How will i use the variable img and thumb to display the image with

ThumbnailCallBack()

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| http://geekswithblogs.net/akshaylamba/ | Student , XI Akshay Deep Lamba

Answer 3

take a picture box in your form and pass the 'thumb' object of Image class to it like:

PictureBox1.Image = thumb;

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www.midnightprogramer.net

Answer 4

IT GIVES ME COMPILE TIME ERROR OF

Error    1    'System.Drawing.Image.GetThumbnailImageAbort' is a 'type', which is not valid in the given context    E:\DTprg_Script\C#\GUI(Graphical User Interface)\IMAGE_THUMBNAIL\IMAGE_THUMBNAIL\Form1.cs    20    63    IMAGE_THUMBNAIL

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| http://geekswithblogs.net/akshaylamba/ | Student , XI Akshay Deep Lamba

Answer 5

Please see the below ipdated code. I have modified the code a bit:

 

  public bool ThumbnailCallback()
        {
                return true;
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            Image Img = Image.FromFile("C:\\p.jpg");
            Image thumbnailImage = Img.GetThumbnailImage(64, 64, new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback), IntPtr.Zero);
            pictureBox1.Image = thumbnailImage;
        }
      

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