CODE EXAMPLE FOR CSHARP

how to fade c# form

private void main_FormClosing(object sender, FormClosingEventArgs e)
{
      e.Cancel = true;    //cancel the event so the form won't be closed

      t1.Tick += new EventHandler(fadeOut);  //this calls the fade out function
      t1.Start();

      if (Opacity == 0)  //if the form is completly transparent
          e.Cancel = false;   //resume the event - the program can be closed

}

void fadeOut(object sender, EventArgs e)
{
      if (Opacity <= 0)     //check if opacity is 0
      {
          t1.Stop();    //if it is, we stop the timer
          Close();   //and we try to close the form
      }
      else
          Opacity -= 0.05;
}