BitBlt in C# problems

Question

Hello all,

I've got some trouble woth using BitBlt in C#. Basically what I would like to achieve is to BitBlt a Bitmap to the Panel Background, replacing all older graphics previously on the Panel Background.

To acheive without BitBlting I can do:

                Graphics g = this.CreateGraphics();
                g.Clear(Color.White);
                g.DrawImageUnscaled(baseBitmap, 0, 0);

baseBitmap is a BitmapImage I created earlier. This works but there's flickering. Plus I would like something faster. The only alternative would be BitBLT.

Now, If I try BitBlt like this:

         Graphics g = Graphics.FromImage(baseBitmapt);
         Graphics g2 = this.CreateGraphics();

            Bitmap targetBMP = new Bitmap(this.Width, this.Height,g);
            Graphics targetG = Graphics.FromImage(targetBMP);
            IntPtr targetHDC = targetG.GetHdc();
            IntPtr gHDC = g.GetHdc();
            IntPtr gHDC2 = g2.GetHdc();
          
             //Copy baseBitmap to targetBMP
            BitBlt(targetHDC, 0, 0, this.Width, this.Height, gHDC, 0, 0, 13369376);
            
            //Copy targetBMP to the Panel Background Graphics
            BitBlt(gHDC2, 0, 0, this.Width, this.Height, targetHDC, 0, 0, 13369376);

              targetG.ReleaseHdc(targetHDC);
               g.ReleaseHdc(gHDC);
               g2.ReleaseHdc(gHDC2);

All I get as a result is a blank black screen as the Panel Background Image.

Can anyone help me with this please? I tried looking all over the web, but all samples are in C++ and are slightly complex. Plus I'm just looking for something simple so that I can do this quickly.

Any help will be appreciated.

Thanks

Regards
Nathanael