System.Windows.Forms.Form.WmNcCalcSize C# (CSharp) Method

		private void WmNcCalcSize (ref Message m)
		{
			XplatUIWin32.NCCALCSIZE_PARAMS ncp;

			if ((ActiveMenu != null) && (m.WParam == (IntPtr)1)) {
				ncp = (XplatUIWin32.NCCALCSIZE_PARAMS)Marshal.PtrToStructure (m.LParam, typeof (XplatUIWin32.NCCALCSIZE_PARAMS));

				// Adjust for menu
				ncp.rgrc1.top += ThemeEngine.Current.CalcMenuBarSize (DeviceContext, ActiveMenu, ClientSize.Width);
				Marshal.StructureToPtr (ncp, m.LParam, true);
			}
			DefWndProc (ref m);		
		}