DeferWindowPos

IntPtr hWinPosInfo, IntPtr hWnd, // window handle IntPtr hWndInsertAfter, // placement-order handle int X, // horizontal position int Y, // vertical position int cx, // width int cy, // height uint uFlags); // window positioning flags public static IntPtr NoTopMost = new IntPtr(-2), TopMost = new IntPtr(-1), Top = new IntPtr(0), Bottom = new IntPtr(1); public static readonly uint NOSIZE = 0x0001, NOMOVE = 0x0002, NOZORDER = 0x0004, NOREDRAW = 0x0008, NOACTIVATE = 0x0010, DRAWFRAME = 0x0020, FRAMECHANGED = 0x0020, SHOWWINDOW = 0x0040, HIDEWINDOW = 0x0080, NOCOPYBITS = 0x0100, NOOWNERZORDER = 0x0200, NOREPOSITION = 0x0200, NOSENDCHANGING = 0x0400, DEFERERASE = 0x2000, ASYNCWINDOWPOS = 0x4000;