i have a image and i want to re size it and need to save in my temp folder.
what i have tried is as below :
UIElement uie = CanvasHost.Child;
int width = 800;
int height = (int)((width / (double)((FrameworkElement)uie).Width) * (int)((FrameworkElement)uie).Height);
RenderTargetBitmap rtb = new RenderTargetBitmap(width, height, 96, 96, PixelFormats.Pbgra32);
rtb.Render(uie);
string dir = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) + @"emp";
if (!Directory.Exists(dir))
Directory.CreateDirectory(dir);
long size = 0;
string filePath = dir + DateTime.Now.Ticks.ToString() + (isPng ? ".png" : ".jpg");
BitmapEncoder enc = null;
using (FileStream fs = File.Create(filePath))
{
if (isPng)
enc = new PngBitmapEncoder();
else
enc = new JpegBitmapEncoder();
enc.Frames.Add(BitmapFrame.Create(rtb));
enc.Save(fs);
size = fs.Length;
}
but when i create image like this it saves part of the image in temp folder. (as shown in the above pic)
how can i re size full image? what i missed here?
EDIT :
As mentioned in the above answer as mentioned by Erti-Chris Eelmaa i have changed the code as below. and it works......
UIElement uie = CanvasHost.Child;
int width = DataCache.Instance.CurrentProject.MaxPhotoEdgeSize;
int height = (int)((width / (double)((FrameworkElement)uie).Width) * (int)((FrameworkElement)uie).Height);
RenderTargetBitmap rtb = new RenderTargetBitmap((int)((FrameworkElement)uie).Width, (int)((FrameworkElement)uie).Height, 96, 96, PixelFormats.Pbgra32);
rtb.Render(uie);
ImageSource im = (ImageSource)rtb.Clone();
BitmapFrame bp = CreateResizedImage(im, width, height, 1); //method suggested by Erti-Chris Eelmaa
string dir = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) + @"emp";
if (!Directory.Exists(dir))
Directory.CreateDirectory(dir);
long size = 0;
string filePath = dir + DateTime.Now.Ticks.ToString() + (isPng ? ".png" : ".jpg");
BitmapEncoder enc = null;
using (FileStream fs = File.Create(filePath))
{
if (isPng)
enc = new PngBitmapEncoder();
else
enc = new JpegBitmapEncoder();
enc.Frames.Add(BitmapFrame.Create(bp));
enc.Save(fs);
size = fs.Length;
}
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