Solved

How to copy Clip of an Image to Clipboard C# Code in a WPF Application

Posted on 2011-09-23
1
704 Views
Last Modified: 2012-05-12
This is the Code the Works in Window Forms Application (Non-WPF)
"TiffImage" is a picturebox Control
public Bitmap ImageClip;

pivate void CopyBlock()
{
    Point topLeft = new Point(Math.Min(pointStart.X, pointEnd.X), Math.Min(pointStart.Y, pointEnd.Y));
    int clipWidth = Math.Abs(pointEnd.X - pointStart.X + 1),
        clipHeight = Math.Abs(pointEnd.Y - pointStart.Y + 1);

    ImageClip = new Bitmap(clipWidth, clipHeight);
    Graphics Gra = Graphics.FromImage(ImageClip);
    Gra.DrawImage(TiffImage.Image, new Rectangle(0, 0, clipWidth, clipHeight),
                                           topLeft.X, topLeft.Y, clipWidth, clipHeight, GraphicsUnit.Pixel);
    Gra.Dispose();

    Clipboard.SetDataObject(ImageClip);
}

What is the Code to do this in WFP Application
0
Comment
Question by:GEGAmbato
1 Comment
 

Accepted Solution

by:
GEGAmbato earned 0 total points
ID: 36595402
I have found the Solution to this problem.

To Clip a portion of an Image to the Clipboard you Crop the Image to a New Image.

            Image ClippedImage = new Image();
            ClippedImage.Width = clipWidth;

            CroppedBitmap cb = new CroppedBitmap((BitmapSource)imageLog.Source,
                                                  new Int32Rect( (int)Math.Round(topLeft.X),  (int)Math.Round(topLeft.Y),
                                                                  (int)Math.Round(clipWidth),  (int)Math.Round(clipHeight)));
            ClippedImage.Source = cb;
           

My problem was I was reading large Tiff File. 852.48 X 25957.44 was the test image size, one of the smaller ones.
The image DpiX = 200, DpiY = 200  Format = BlackWhite
PixelWidth = 1776 PixelHeight = 54078 BitsPerPixel = 1

To correct the problem of the cropped Image not matching what was selected I had to get the Image DpiX and DpiY  to 96.

This is the Code to Decode the Tiff File to, change Dpi to 96, and fit into an Image Control.

            Stream streamLog = new FileStream(pFile, FileMode.Open, FileAccess.Read, FileShare.Read);
            TiffBitmapDecoder decoder = new TiffBitmapDecoder(streamLog, BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption.Default);
            BitmapSource logToBitMap = decoder.Frames[0];

            int pixWidth = logToBitMap.PixelWidth;
            int pixHeight = logToBitMap.PixelHeight;
            int bitPerPix = logToBitMap.Format.BitsPerPixel;
            PixelFormat pixFormat = logToBitMap.Format;

            int stride = pixWidth * bitPerPix;
            byte[] pixData = new byte[stride * pixHeight];
            logToBitMap.CopyPixels(pixData, stride, 0);

            BitmapSource bmpSource = BitmapSource.Create(pixWidth, pixHeight, 96, 96, pixFormat, null, pixData, stride);
            imageLog.Source = bmpSource;
            imageLog.Stretch = Stretch.Fill;

 Hope this help someone else, this took over a week to find a solution.
0

Featured Post

Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This article is for Object-Oriented Programming (OOP) beginners. An Interface contains declarations of events, indexers, methods and/or properties. Any class which implements the Interface should provide the concrete implementation for each Inter…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…

776 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question