Saving image of minimized chart of running strategy

[cutzpr]

I am trying to save the image of the chart in which my strategy is running. The code below works perfectly for saving the image of the currently displayed chart but I would like to save the image of a chart that is not in the forefront. I have several different strategies running and would like my strategy to save the current chart it is attached too, even if it is minimized. I assumed that using "this.ChartContol" would select the current chart that the strategy was attached too but it doesn't.

public void zSaveChart() 
        {
            
            if(!zIsRealTime()) return; // Only save chart for real time trades
            
            if(ChartControl == null) // Strategy is not attached to a chart
            {
                if(File.Exists(strategyPath + "\\image.png")) 
                    return; // Default image already saved to strategy directory
                else
                {
                    string path = NinjaTrader.Core.Globals.UserDataDir + "\\bin\\Custom\\Strategies\\image.png";
                    
                    if(File.Exists(path))
                    {
                        File.Copy(path,strategyPath + "\\image.png");
                    }                
                }
            }
            else
            {
            
                if (0 == Interlocked.Exchange(ref threadLock, 1))  //0 indicates that the method is not in use.
                {
                    try
                    {
                        this.ChartControl.Dispatcher.InvokeAsync(() =>
                        {
                            NinjaTrader.Gui.Chart.Chart chart = Window.GetWindow(this.ChartControl) as NinjaTrader.Gui.Chart.Chart;
                            RenderTargetBitmap screenCapture = chart.GetScreenshot(ShareScreenshotType.Chart);
                            System.Windows.Media.Imaging.BitmapFrame outputFrame = BitmapFrame.Create(screenCapture);

                            if (screenCapture != null)
                            {
                                try
                                {
                                    PngBitmapEncoder png = new PngBitmapEncoder();
                                    png.Frames.Add(outputFrame);
                                    using (Stream stream = File.Create(string.Format(@"{0}\{1}", strategyPath, "image.png"))) png.Save(stream);
                                    NinjaTrader.Code.Output.Process("Screenshot saved to " + strategyPath, PrintTo.OutputTab1);
                                }
                                catch (IOException)
                                {
                                    NinjaTrader.Code.Output.Process("ScreenshotTakerExample: Could not take screenshot", PrintTo.OutputTab1);
                                }
                            }
                        });
                    }
                    catch (Exception ex)
                    {
                        NinjaTrader.Code.Output.Process("Could not save screenshot   " + ex, PrintTo.OutputTab1);
                    }


                    Interlocked.Exchange(ref threadLock, 0); //Release the lock
                }
            }
        } 

[NinjaTrader_AlanP]

Hello cutzpr,

Thank you for your note.

There is no supported method for taking a screen shot of a minimized chart however I will submit a feature request for this.

I have attached a sample using a different approach and if the chart is minimized the saved imagine will be a chart window with no data displayed.

Please let us know if you need further assistance.