I have a function that takes a list of bitmap image and merge them. It returns the merged image as DrawingImage type. I have used the drawing image as source for the Image control.

Now what i want to do is to convert the drawing image to bitmapsource type.
Can anyone provide me with the sample code for this.?
Thank you.

Thank you for the reply but i also solved it with these lines of code. Don't know if this is effective method but it is solved.

DrawingImage _returnObject = MergeImage(tempListBitmap);//returns DrawingImage

if (_returnObject != null)
{
_returnObject.Freeze();

System.Windows.Controls.Image _testImage = new System.Windows.Controls.Image();

_testImage.Source = _returnObject;

DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawImage(_testImage.Source,new Rect(0,0,_testImage.Source.Width,_testImage.Source.Height));
drawingContext.Close();

RenderTargetBitmap bmp = new RenderTargetBitmap((int)_testImage.Source.Width, (int)_testImage.Source.Height, 96, 96, PixelFormats.Pbgra32);
bmp.Render(drawingVisual);

bmp.Render(_testImage);

imgTest.Source = bmp;
imgTest.Visibility = Visibility.Visible;
lsImages.Visibility = Visibility.Hidden;

_objWindow3.PBmpSource = (BitmapSource)bmp;

}

Hi, you shoud use the method

RenderTargetBitmap bmp = new RenderTargetBitmap((Int32)Math.Ceiling(width),

(Int32)Math.Ceiling(height),

(Double)DeviceHelper.PixelsPerInch(Orientation.Horizontal),

(Double)DeviceHelper.PixelsPerInch(Orientation.Vertical),

PixelFormats.Pbgra32);
DrawingVisual dv = new DrawingVisual();
..................................
bmp.Render(dv);

bmp is a BitMapSource





Hope this help you

internal class DeviceHelper

{

public static Int32 PixelsPerInch(Orientation orientation)

{

Int32 capIndex = (orientation == Orientation.Horizontal) ? 0x58 : 90;

using (DCSafeHandle handle = UnsafeNativeMethods.CreateDC("DISPLAY"))

{

return (handle.IsInvalid ? 0x60 : UnsafeNativeMethods.GetDeviceCaps(handle, capIndex));

}

}

}

[DllImport("gdi32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]

public static extern Int32 GetDeviceCaps(DCSafeHandle hDC, Int32 nIndex);

[DllImport("gdi32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]

public static extern Boolean DeleteDC(IntPtr hDC);

internal sealed class DCSafeHandle : SafeHandleZeroOrMinusOneIsInvalid

{

private DCSafeHandle() : base(true) { }

protected override Boolean ReleaseHandle()

{

return UnsafeNativeMethods.DeleteDC(base.handle);

}

}

---

Oscar Avarez Guerras - Arquitecto Software en I3B (I+D+I) Blog:http://geeks.ms/blogs/oalvarez Por favor marca como respuesta si te ha ayudado esta respuesta

Thank you for the reply but i also solved it with these lines of code. Don't know if this is effective method but it is solved.

DrawingImage _returnObject = MergeImage(tempListBitmap);//returns DrawingImage

if (_returnObject != null)
{
_returnObject.Freeze();

System.Windows.Controls.Image _testImage = new System.Windows.Controls.Image();

_testImage.Source = _returnObject;

DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawImage(_testImage.Source,new Rect(0,0,_testImage.Source.Width,_testImage.Source.Height));
drawingContext.Close();

RenderTargetBitmap bmp = new RenderTargetBitmap((int)_testImage.Source.Width, (int)_testImage.Source.Height, 96, 96, PixelFormats.Pbgra32);
bmp.Render(drawingVisual);

bmp.Render(_testImage);

imgTest.Source = bmp;
imgTest.Visibility = Visibility.Visible;
lsImages.Visibility = Visibility.Hidden;

_objWindow3.PBmpSource = (BitmapSource)bmp;

}