public static AboutProgram GetInstance()
{
if (_instance == null)
{
_instance = new AboutProgram();
}
return(_instance);
}
private void aboutProgram_Click(object sender, EventArgs e)
{
Form aboutForm = AboutProgram.GetInstance();
if (!aboutForm.Visible)
{
aboutForm.Show();
}
else
{
aboutForm.BringToFront();
}
}
private void AboutProgram_FormClosing(object sender, FormClosingEventArgs e)
{
_instance = null;
}
