balance-windowsbalance-windows is an interactive compiled Lisp function in `
window.el'. It is bound to C-x +.
(balance-windows &optional WINDOW-OR-FRAME) Balance the sizes of windows of WINDOW-OR-FRAME. WINDOW-OR-FRAME is optional and defaults to the selected frame. If WINDOW-OR-FRAME denotes a frame, balance the sizes of all windows of that frame. If WINDOW-OR-FRAME denotes a window, recursively balance the sizes of all child windows of that window.