Set mouse cursor to middle of screen when hand is detected by kinect

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C#

Kinect

cursor

I am developing a kinect application, and now I can set the mouse cursor to middle of screen when my hand is reconized by kinect sensor. However, this just happen when run the application. I want that this happen when hand is detected by the kinect sensor during execution. Somebody can help me? I send the code that I have now:

if (frames < 70)
{
   // set the cursor to the middle of the screen
   Cursor.Position = new System.Drawing.Point(
   // Screen.PrimaryScreen gets the primary display
   Screen.PrimaryScreen.Bounds.Width / 2,
   Screen.PrimaryScreen.Bounds.Height / 2
   );
   // increment the number of frames
   frames++;
}

What I have tried:

Set the mouse cursor when app runs.