add wxSYS_DCLICK_TIME system metric constant; use it for the generic list control rename timer interval (patch 1782472)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48622 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/settings.tex

@@ -122,6 +122,8 @@ metric as possible (e.g a wxTopLevelWindow in case of the wxSYS\_CAPTION\_Y metr
 clicks must fall to generate a double-click.}
 \twocolitem{{\bf wxSYS\_DCLICK\_Y}}{Height in pixels of rectangle within which two successive mouse
 clicks must fall to generate a double-click.}
+\twocolitem{{\bf wxSYS\_DCLICK\_MSEC}}{Maximal time, in milliseconds, which may
+pass between subsequent clicks for a double click to be generated.}
 \twocolitem{{\bf wxSYS\_DRAG\_X}}{Width in pixels of a rectangle centered on a drag point
 to allow for limited movement of the mouse pointer before a drag operation begins.}
 \twocolitem{{\bf wxSYS\_DRAG\_Y}}{Height in pixels of a rectangle centered on a drag point