private void btnF1_Click(object sender, EventArgs e)
{
frmHuongdan frm = new frmHuongdan();
frm.Show();
this.Dispose();
}
private void frmMain_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.H)
{
frmHuongdan frm = new frmHuongdan();
frm.Show();
this.Dispose();
}
}
