This example shows how to enable image transfer on the PST Tracker and how to use the PST SDK to retrieve images. Images are 8 bit grayscale and are stored as an IntPtr array without memory alignment or padding.
When compiling and running this example, please make sure that the required dependencies can be found by the executable (e.g. by copying the Redist
directory into the build directory. When the PST SDK has been installed through the PST Software Suite installer the Redist folder can be found in the Development folder.).
using System;
using System.Runtime.InteropServices;
using System.Threading;
namespace PSTech.Images
{
public class Images
{
[DllImport("Kernel32")]
private static extern bool SetConsoleCtrlHandler(ConsoleEventHandler handler, bool add);
private delegate bool ConsoleEventHandler(CtrlType sig);
static ConsoleEventHandler ConsoleCtrlEventHandler;
public enum CtrlType
{
CtrlCEvent = 0,
CtrlBreakEvent = 1,
CtrlCloseEvent = 2,
CtrlLogOffEvent = 5,
CtrlShutdownEvent = 6,
}
private static bool ConsoleHandler(CtrlType sig)
{
Exithandler((int)sig);
return true;
}
static bool Running = true;
static int NumberOfSamplesToGrab = 1000;
static int SamplesGrabbed = 0;
class MyTrackerListener : TrackerListener
{
public override void OnTrackerData(TrackerData data,
ErrorStatus status)
{
if (SamplesGrabbed++ >= NumberOfSamplesToGrab)
{
Running = false;
}
}
}
static void Exithandler(int sig)
{
Tracker.Shutdown();
Environment.Exit(0);
}
static int Main(string[] args)
{
ConsoleCtrlEventHandler += new ConsoleEventHandler(ConsoleHandler);
SetConsoleCtrlHandler(ConsoleCtrlEventHandler, true);
try
{
Tracker tracker = new Tracker();
Console.Write("Running PST Server version " + tracker.GetVersionInfo() + "\n");
TrackerListener listener = new MyTrackerListener();
tracker.AddTrackerListener(ref listener);
tracker.StartTracker();
Console.Write("System check: " + tracker.Systemcheck() + "\n\n");
Console.Write("***************************\n\n");
tracker.SetFramerate(60);
Console.Write("Current frame rate: " + tracker.GetFramerate() + " Hz\n\n");
tracker.EnableImageTransfer();
Console.Write("Enabled image transfer. Current frame rate: " + tracker.GetFramerate() + " Hz\n\n");
Console.Write("***************************\n\n");
for (int i = 0; i < 100; ++i)
{
Pstsdk.Image images = tracker.GetImage();
Console.Write("Retrieval operation successful!\n");
Console.Write("Retrieved " + images.Images.Length + " image(s) of size: " + images.Width + " X " + images.Height + "\n\n");
Thread.Sleep(17);
}
Console.Write("Waiting 5 seconds for image transfer to be automatically disabled...\n\n");
Thread.Sleep(5000);
Pstsdk.Image image = tracker.GetImage();
Console.Write("Retrieval operation successful!\n");
Console.Write("Retrieved " + image.Images.Length + " image(s) of size: " + image.Width + " X " + image.Height + "\n\n");
while (Running)
{
Thread.Sleep(100) ;
}
}
{
Console.Write(e + "\n");
}
finally
{
Tracker.Shutdown();
}
Console.Write("Press enter to continue...\n");
Console.Read();
return 0;
}
}
}