private void letterHeadOptionsToolStripMenuItem_Click(object sender, EventArgs e) { if (FrmLetterHeadingForm == null) { FrmLetterHeadingForm = new frmLetterHeadingForm(); FrmLetterHeadingForm.MdiParent = this; FrmLetterHeadingForm.ClientSize = new System.Drawing.Size(2000, 800); this.WindowState = FormWindowState.Maximized; FrmLetterHeadingForm.FormBorderStyle = FormBorderStyle.None; FrmLetterHeadingForm.ControlBox = false; FrmLetterHeadingForm.MaximizeBox = false; FrmLetterHeadingForm.MinimizeBox = false; FrmLetterHeadingForm.ShowIcon = false; FrmLetterHeadingForm.FormClosed += FrmLetterHeadingForm_FormClosed;; FrmLetterHeadingForm.Dock = DockStyle.Fill; FrmLetterHeadingForm.Show(); } else { FrmLetterHeadingForm.Activate(); } }