Moved all interface headers into a 'wx' subdirectory for proper use of Doxygen path settings.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54385 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/windowid.h

@@ -0,0 +1,42 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        windowid.h
+// Purpose:     interface of wxIdManager
+// Author:      wxWidgets team
+// RCS-ID:      $Id$
+// Licence:     wxWindows license
+/////////////////////////////////////////////////////////////////////////////
+
+/**
+    @class wxIdManager
+    @wxheader{windowid.h}
+
+    wxIdManager is responsible for allocating and releasing window IDs.  It
+    is used by wxWindow::NewControlId and
+    wxWindow::UnreserveControlId, and can also
+    be used be used directly.
+
+    @library{wxcore}
+    @category{FIXME}
+
+    @see wxWindow::NewControlId, wxWindow::UnreserveControlId, @ref
+    overview_windowidsoverview "Window IDs overview"
+*/
+class wxIdManager
+{
+public:
+    /**
+        Called directly by wxWindow::NewControlId,
+        this function will create a new ID or range of IDs.  The IDs will be
+        reserved until assigned to a wxWindowIDRef()
+        or unreserved with UnreserveControlId().
+        Only ID values that are not assigned to a wxWindowIDRef()
+        need to be unreserved.
+
+        @param count
+            The number of sequential IDs to reserve.
+
+        @return The value of the first ID in the sequence, or wxID_NONE.
+    */
+    static wxWindowID ReserveControlId(int count = 1);
+};
+