This hook is invoked when first creating a new window object.\n\ Its procedures are each called with a single argument, WIN, the new\n\ window. Only a subset of the usual window parameters should be set\n\ here, in particular, those that control what hints will be respected\n\ for this window, and those that control how the window will be placed.\n\ \n\ This hook does not typically need to be used directly by the user;\n\ window-style from the "(app scwm style)" module provides a convenient\n\ interface to setting the relevant parameters when a new window is\n\ created.\n\ \n\ See also before-place-new-window-hook and after-new-window-hook.