CODEWITHSUNDEEP
winformsdevexpress
Tariq_ASp.net
Tariq_ASp.net

Reputation: 94

Image magnify Glass on windows form

i am trying to use glass magnifier on PictureEdit(devexpress) control in windows form we have set PictureEdit.SizeMode =Squeeze . its important. in our application i am already using Squeeze size mode. i am getting problem of calculation of mouse location , for draw rect image onto enalged panel. here is code of PartialMag_Paint event of enalaged panel. in which we show zoomed imaged of mouse pointed area

 int srcx = (PartailMagImageView.Location.X + PartailMagImageView.Width / 2);
 int srcy = (PartailMagImageView.Location.Y + PartailMagImageView.Height / 2);

 e.Graphics.DrawImage(this.Image
                    , new System.Drawing.Rectangle(0, 0, PartailMagImageView.Width, PartailMagImageView.Height)
                    , new System.Drawing.Rectangle(srcx - ZoomOutRate / 2, srcy - ZoomOutRate / 2, ZoomOutRate, ZoomOutRate)
                    , GraphicsUnit.Pixel);



                Pen mypen = new Pen(Color.Black, 7);
                e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
                e.Graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
                e.Graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
                e.Graphics.DrawEllipse(mypen, 0, 0, PartailMagImageView.Width - 7, PartailMagImageView.Height - 7);

if any one need to see complete code sample. i am attaching sample in dropbox link https://www.dropbox.com/s/mogmshuiimtvhk7/ImageMagnifyingWindowsForm.zip?dl=0

Upvotes: 0

Views: 190

Answers (1)

Svetlana
Svetlana

Reputation: 421

PictureEdit has the ViewportToImage and ImageToViewport methods allowing you to convert viewport coordinates to the source image coordinates and vice versa.

Upvotes: 1

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