Index: trunk/Ohana/src/kapa/event/EventLoop.c
===================================================================
--- trunk/Ohana/src/kapa/event/EventLoop.c	(revision 5612)
+++ trunk/Ohana/src/kapa/event/EventLoop.c	(revision 6424)
@@ -1,5 +1,8 @@
 # include "Ximage.h"
 
-# define IgnoreMask (long) (ButtonPressMask | ClientMessage | ButtonReleaseMask | KeyPressMask | PointerMotionMask)
+/* # define IgnoreMask (long) (ButtonPressMask | ClientMessage | ButtonReleaseMask | KeyPressMask | PointerMotionMask) */
+
+/* list events being selected below, all other masks are ignored */ 
+# define IgnoreMask (long) (~(StructureNotifyMask | SubstructureNotifyMask | ExposureMask))
 
 int LastEvent (Display *display, int type, XEvent *event) {
@@ -33,4 +36,5 @@
 
     if (XEventsQueued (graphic.display, QueuedAfterFlush) < 1) {
+	/* fprintf (stderr, "."); */
       usleep (50000);
       continue;
@@ -54,6 +58,82 @@
     /* remove those events we will ignore */
     while (XCheckMaskEvent (display, IgnoreMask, &event)) continue;
-      
+
+    /* events to remove which have no mask component */
+    while (XCheckTypedEvent (display, MappingNotify, &event)) continue;
+    while (XCheckTypedEvent (display, ClientMessage, &event)) continue;
+    while (XCheckTypedEvent (display, SelectionClear, &event)) continue;
+    while (XCheckTypedEvent (display, SelectionNotify, &event)) continue;
+    while (XCheckTypedEvent (display, SelectionRequest, &event)) continue;
   }
   return (status);
 }
+
+# if (0)
+
+/* all masks from X.h for reference: */
+
+#define NoEventMask                     0L
+#define KeyPressMask                    (1L<<0)
+#define KeyReleaseMask                  (1L<<1)
+#define ButtonPressMask                 (1L<<2)
+#define ButtonReleaseMask               (1L<<3)
+#define EnterWindowMask                 (1L<<4)
+#define LeaveWindowMask                 (1L<<5)
+#define PointerMotionMask               (1L<<6)
+#define PointerMotionHintMask           (1L<<7)
+#define Button1MotionMask               (1L<<8)
+#define Button2MotionMask               (1L<<9)
+#define Button3MotionMask               (1L<<10)
+#define Button4MotionMask               (1L<<11)
+#define Button5MotionMask               (1L<<12)
+#define ButtonMotionMask                (1L<<13)
+#define KeymapStateMask                 (1L<<14)
+#define ExposureMask                    (1L<<15)
+#define VisibilityChangeMask            (1L<<16)
+#define StructureNotifyMask             (1L<<17)
+#define ResizeRedirectMask              (1L<<18)
+#define SubstructureNotifyMask          (1L<<19)
+#define SubstructureRedirectMask        (1L<<20)
+#define FocusChangeMask                 (1L<<21)
+#define PropertyChangeMask              (1L<<22)
+#define ColormapChangeMask              (1L<<23)
+#define OwnerGrabButtonMask             (1L<<24)
+
+/* all events from X.h for reference: */
+
+#define KeyPress                2
+#define KeyRelease              3
+#define ButtonPress             4
+#define ButtonRelease           5
+#define MotionNotify            6
+#define EnterNotify             7
+#define LeaveNotify             8
+#define FocusIn                 9
+#define FocusOut                10
+#define KeymapNotify            11
+#define Expose                  12
+#define GraphicsExpose          13
+#define NoExpose                14
+#define VisibilityNotify        15
+#define CreateNotify            16
+#define DestroyNotify           17
+#define UnmapNotify             18
+#define MapNotify               19
+#define MapRequest              20
+#define ReparentNotify          21
+#define ConfigureNotify         22
+#define ConfigureRequest        23
+#define GravityNotify           24
+#define ResizeRequest           25
+#define CirculateNotify         26
+#define CirculateRequest        27
+#define PropertyNotify          28
+#define SelectionClear          29
+#define SelectionRequest        30
+#define SelectionNotify         31
+#define ColormapNotify          32
+#define ClientMessage           33
+#define MappingNotify           34
+#define LASTEvent               35      /* must be bigger than any event # */
+
+# endif