void __fastcall Tile();
Arranges MDI child forms so that they are all the same size.
Use Tile to arrange MDI child forms so that they are all the same size. Tiled forms completely fill up the client area of the parent form. How the forms arrange themselves depends upon the values of their TileMode properties.
Tile works only if the form is an MDI parent form (that is, if the form's FormStyle property is fsMDIForm).