don't check for Meta key in wxKeyEvent::HasModifiers()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11886 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/keyevent.tex

@@ -131,9 +131,12 @@ Obtains the position at which the key was pressed.
 
 \constfunc{bool}{HasModifiers}{\void}
 
-Returns TRUE if either of {\sc Ctrl}, {\sc Alt} or {\sc Meta} keys was down
+Returns TRUE if either {\sc Ctrl} or {\sc Alt} keys was down
 at the time of the key event. Note that this function does not take into
-account the {\sc Shift} key state.
+account neither {\sc Shift} nor {\sc Meta} key states (the reason for ignoring
+the latter is that it is common for {\sc NumLock} key to be configured as 
+{\sc Meta} under X but the key presses even while {\sc NumLock} is on should
+be still processed normally).
 
 \membersection{wxKeyEvent::ShiftDown}