This fixes a problem with using wxSpinCtrlGeneric in toolbars under wxOSX, using the toolbar itself (i.e. the parent of the spin control) as parent for the children didn't work there and no windows were visible at all. Also use wxNavigationEnabled as base class of wxSpinCtrlGeneric to fix keyboard navigation. And override SetBackgroundColour() to set it for the text control part of the spin control only. Closes #15016. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73630 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775