WPF将Ui保存为图片和保存位图

WPF将Ui保存为图片

SaveWindowContent(this, "c:\tmp.bmp");

private void SaveWindowContent(Window source, string fileName)
{
FrameworkElement elem = source.Content as FrameworkElement;
RenderTargetBitmap targetBitmap = new RenderTargetBitmap(
(int)elem.ActualWidth,
(int)elem.ActualHeight,
96d,
96d,
PixelFormats.Default);

targetBitmap.Render(source);
BmpBitmapEncoder encoder = new BmpBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(targetBitmap));
// save file to disk
using (FileStream fs = File.Open(fileName, FileMode.OpenOrCreate))
{
encoder.Save(fs);
}
}

保存位图：
---------保存Image图片（原始图片）---------------------------------

//img 为你的图片控件

private void btnSave_Click(object sender, RoutedEventArgs e)
{

if (img.Source != null) {

SaveFileDialog op = new SaveFileDialog();
op.Filter = "JPEG Files(.jpg)|.jpg|BMP Files (.bmp)|.bmp";
if (op.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{

BitmapImage bmp = img.Source as BitmapImage;
BmpBitmapEncoder encoder = new BmpBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(bmp));
// save file to disk
using (FileStream fs = File.Open(op.FileName, FileMode.OpenOrCreate))
{
encoder.Save(fs);
}
}

}

}