private void btnMaloprodaja_KeyDown(object sender, KeyEventArgs e) { if (e.KeyData == Keys.Escape) { Caffe.frmPrijava p = new Caffe.frmPrijava(); MainForm.Hide(); p.MainForm = MainForm; p.ShowDialog(); } if (e.KeyData == Keys.Enter) { foreach (Form OpenForm in Application.OpenForms) { if (OpenForm.GetType() == typeof(frmKasa)) { OpenForm.WindowState = FormWindowState.Maximized; return; } } Caffe.frmCaffe ks = new Caffe.frmCaffe(); ks.MainForm = MainForm; ks.Show(); } }