I have 3D WPF visual that I want to pass into an Excel cell (via clipboard buffer).
With "normal" BMP images it works but I do not know how to convert a RenderTargetBitmap
.
My code looks like this:
System.Windows.Media.Imaging.RenderTargetBitmap renderTarget = myParent.GetViewPortAsImage(DiagramSizeX, DiagramSizeY);
System.Windows.Controls.Image myImage = new System.Windows.Controls.Image();
myImage.Source = renderTarget;
System.Drawing.Bitmap pg = new System.Drawing.Bitmap(DiagramSizeX, DiagramSizeY);
System.Drawing.Graphics gr = System.Drawing.Graphics.FromImage(pg);
gr.DrawImage(myImage, 0, 0);
System.Windows.Forms.Clipboard.SetDataObject(pg, true);
sheet.Paste(range);
My problem is that gr.DrawImage
does not accept a System.Windows.Controls.Image
or a System.Windows.Media.Imaging.RenderTargetBitmap
; only a System.Drawing.Image
.
How do I convert the Controls.Image.Imaging.RenderTargetBitmap
into an Image
, or are there any easier ways?
You can copy the pixels from the RenderTargetBitmap
directly into the pixel buffer of a new Bitmap
. Note that I've assumed that your RenderTargetBitmap
uses PixelFormats.Pbrga32
, as use of any other pixel format will throw an exception from the constructor of RenderTargetBitmap
.
var bitmap = new Bitmap(renderTarget.PixelWidth, renderTarget.PixelHeight,
PixelFormat.Format32bppPArgb);
var bitmapData = bitmap.LockBits(new Rectangle(Point.Empty, bitmap.Size),
ImageLockMode.WriteOnly, bitmap.PixelFormat);
renderTarget.CopyPixels(Int32Rect.Empty, bitmapData.Scan0,
bitmapData.Stride*bitmapData.Height, bitmapData.Stride);
bitmap.UnlockBits(bitmapData);