Sending a keyboard Command from a NinjaTrader Script

April 3rd, 2014, 03:51 PM

Would it be possible to send a keyboard command such as <PrintScreen> to the computer from within NinkaTrader script? Specifically, I'd like to save a copy of my charts at a trigger point using the Hot key in SnagIt. If so, can you please explain how and maybe provide some sample code?

There is another post on Big Mike's forum that suggests using:

SendKeys.Send("{PrintScreen}");

but when I tried this I got an error message on compile of:

The name 'SendKeys' does not exist in the current context.

Thanks

November 4th, 2014, 11:43 AM

Quoting

...The name 'SendKeys' does not exist in the current context...

Did you finally find the solution?

November 4th, 2014, 12:43 PM

ECI Ed

....... Specifically, I'd like to save a copy of my charts at a trigger point using the Hot key in SnagIt. If so, can you please explain how and maybe provide some sample code?

There is another post on Big Mike's forum that suggests using:

SendKeys.Send("{PrintScreen}");

but when I tried this I got an error message on compile of:

The name 'SendKeys' does not exist in the current context.

Thanks

SendKeys.Send will work with a listener , here it should be SnagIt.

You have to send keys to SnagIt from NT.

For that perhaps i only know some dirty methods of Dll import like this,

Code

using System.Threading;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using System.Collections.Generic;
using System.Text;
using System.Linq;

[DllImport("user32.dll",EntryPoint = "FindWindow")]
private static extern IntPtr FindWindow(string lp1,string lp2);

[DllImport("user32.dll", CharSet=CharSet.Auto, ExactSpelling = true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool SetForegroundWindow(IntPtr hWnd);


private void trigger_function()
		{
			IntPtr handle = FindWindow(null, "SnagIt");      // handle for SnagIt
			 
				if(!handle.Equals(IntPtr.Zero))
				{
					if(SetForegroundWindow(handle))
					{
						
						SendKeys.SendWait("Key combo for print in SnagIt");
						
						SendKeys.Flush();
					}
					else Print("Failed In");
					
				}
				else Print("Failed Out"+handle.ToString());
				
		}

I have exampled above code snap from my own different key thrower script, you have to take care of key combos
that are accepted in SnagIt.

OTOH, just for saving your chart, there are other esay way you can use, just look some tools from @vvhg