Saving image to file

Question

I am working on a basic drawing application. I want the user to be able to save the contents of the image.

enter image description here

I thought I should use

System.Drawing.Drawing2D.GraphicsState img = drawRegion.CreateGraphics().Save();

but this does not help me for saving to file.

What kind of control is 'drawRegion'? – Steve Oct 16 '12 at 07:54 — Steve, Oct 16 '12 at 07:54

Steve · Accepted Answer · 2020-08-06T07:00:36.113

58

You could try to save the image using this approach

SaveFileDialog dialog = new SaveFileDialog();
if (dialog.ShowDialog() == DialogResult.OK)
{
   int width = Convert.ToInt32(drawImage.Width); 
   int height = Convert.ToInt32(drawImage.Height); 
   Bitmap bmp = new Bitmap(width,height);        
   drawImage.DrawToBitmap(bmp, new Rectangle(0, 0, width, height);
   bmp.Save(dialog.FileName, ImageFormat.Jpeg);
}

edited Aug 06 '20 at 07:00

answered Oct 16 '12 at 08:00

Steve

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@Joel Right, you don't appreciate Intellisense enough until you write code like this by hand – Steve Jul 03 '14 at 11:23
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Why haven't you disposed of bmp object? Couldn't this leave the file in an 'open' state? – Paul Zahra Feb 29 '16 at 17:04
where would this image be saved? – Lexy Feito Feb 09 '17 at 21:41
Any place indicated by the property dialog.Filename – Steve Feb 09 '17 at 21:43

score 41 · Answer 2 · edited Aug 05 '20 at 23:45

41

You can try with this code

Image.Save("myfile.png", ImageFormat.Png)

Link : http://msdn.microsoft.com/en-us/library/ms142147.aspx

edited Aug 05 '20 at 23:45

AustinWBryan

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answered Oct 16 '12 at 07:55

Aghilas Yakoub

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Note: Not static, you have to use `objectName.Save()` – Aaron Franke Dec 07 '18 at 09:16

Nikola Davidovic · Answer 3 · 2012-10-16T09:28:31.967

If you are drawing on the Graphics of the Control than you should do something draw on the Bitmap everything you are drawing on the canvas, but have in mind that Bitmap needs to be the exact size of the control you are drawing on:

  Bitmap bmp = new Bitmap(myControl.ClientRectangle.Width,myControl.ClientRectangle.Height);
  Graphics gBmp = Graphics.FromImage(bmp);
  gBmp.DrawEverything(); //this is your code for drawing
  gBmp.Dispose();
  bmp.Save("image.png", ImageFormat.Png);

Or you can use a DrawToBitmap method of the Control. Something like this:

Bitmap bmp = new Bitmap(myControl.ClientRectangle.Width, myControl.ClientRectangle.Height);
myControl.DrawToBitmap(bmp,new Rectangle(0,0,bmp.Width,bmp.Height));
bmp.Save("image.png", ImageFormat.Png);

score 1 · Answer 4 · edited Dec 23 '19 at 12:01

You can save image , save the file in your current directory application and move the file to any directory .

 Bitmap btm = new Bitmap(image.width,image.height);
    Image img = btm;
                        img.Save(@"img_" + x + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
                        FileInfo img__ = new FileInfo(@"img_" + x + ".jpg");
                        img__.MoveTo("myVideo\\img_" + x + ".jpg");

Saving image to file

4 Answers4

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