Load a WPF BitmapImage from a System.Drawing.Bitmap

Question

I have an instance of a System.Drawing.Bitmap and would like to make it available to my WPF app in the form of a System.Windows.Media.Imaging.BitmapImage<

Answer 1

// at class level;
[System.Runtime.InteropServices.DllImport("gdi32.dll")]
public static extern bool DeleteObject(IntPtr hObject);    // https://stackoverflow.com/a/1546121/194717


/// 
 
/// Converts a  into a WPF . 
/// 
 
/// Uses GDI to do the conversion. Hence the call to the marshalled DeleteObject. 
///  
/// The source bitmap. 
/// A BitmapSource 
public static System.Windows.Media.Imaging.BitmapSource ToBitmapSource(this System.Drawing.Bitmap source)
{
    var hBitmap = source.GetHbitmap();
    var result = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(hBitmap, IntPtr.Zero, System.Windows.Int32Rect.Empty, System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());

    DeleteObject(hBitmap);

    return result;
}