hopefully this fixes the issue seen by Sander

cmd/wm/client.c

@@ -388,7 +388,7 @@ manage_client(Client *c)
 	XSync(dpy, False);
 	if(c->frame.data[c->sel]->area->view == view.data[sel])
 		focus_client(c, False);
-	flush_events(EnterWindowMask);
+	flush_masked_events(EnterWindowMask);
 }
 
 static int
@@ -425,7 +425,7 @@ destroy_client(Client *c)
 	XSync(dpy, False);
 	XSetErrorHandler(wmii_error_handler);
 	XUngrabServer(dpy);
-	flush_events(EnterWindowMask);
+	flush_masked_events(EnterWindowMask);
 }
 
 Client *
@@ -534,7 +534,7 @@ select_client(Client *c, char *arg)
 			return;
 	}
 	focus_client(a->frame.data[i]->client, True);
-	flush_events(EnterWindowMask);
+	flush_masked_events(EnterWindowMask);
 }
 
 void
@@ -591,7 +591,7 @@ Swaparea:
 	if(idx_of_area(a))
 		arrange_column(a, False);
 	focus_client(c, True);
-	flush_events(EnterWindowMask);
+	flush_masked_events(EnterWindowMask);
 }
 
 void
@@ -641,7 +641,7 @@ send_client_to(Client *c, char *arg)
 		to = v->area.data[i];
 	}
 	send_to_area(to, a, c);
-	flush_events(EnterWindowMask);
+	flush_masked_events(EnterWindowMask);
 }
 
 void
@@ -657,7 +657,7 @@ resize_all_clients()
 				resize_client(c, &c->frame.data[c->sel]->rect, False);
 		}
 	}
-	flush_events(EnterWindowMask);
+	flush_masked_events(EnterWindowMask);
 }
 
 /* convenience function */

cmd/wm/event.c

@@ -57,7 +57,7 @@ check_x_event(IXPConn *c)
 }
 
 unsigned int
-flush_events(long even_mask)
+flush_masked_events(long even_mask)
 {
 	XEvent ev;
 	unsigned int n = 0;
@@ -100,13 +100,13 @@ handle_buttonpress(XEvent *e)
 			if((ev->button == Button1 || ev->button == Button3))
 				focus(c, True);
 			if(ev->button == Button1)
-				do_mouse_move(c);
+				do_mouse_move(c, ev);
 			else if (ev->button == Button3) {
 				BlitzAlign align = blitz_align_of_rect(&c->rect, ev->x, ev->y);
 				if(align != CENTER)
-					do_mouse_resize(c, align);
+					do_mouse_resize(c, ev, align);
 				else
-					do_mouse_move(c);
+					do_mouse_move(c, ev);
 			}
 		}
 		else if(ev->button == Button1)

cmd/wm/mouse.c

@@ -199,7 +199,7 @@ draw_pseudo_border(XRectangle * r)
 }
 
 void
-do_mouse_move(Client *c)
+do_mouse_move(Client *c, XButtonPressedEvent *e)
 {
 	int px = 0, py = 0, wex, wey, ex, ey, first = 1, i;
 	Window dummy;
@@ -220,14 +220,11 @@ do_mouse_move(Client *c)
 	pt.y = ey;
 	XSync(dpy, False);
 
-	if(flush_events(ButtonReleaseMask))
-		return;
-
-	XGrabServer(dpy);
-	while(XGrabPointer(dpy, root, False, ButtonMotionMask | ButtonReleaseMask,
+	if(XGrabPointer(dpy, root, False, ButtonMotionMask | ButtonReleaseMask,
 				GrabModeAsync, GrabModeAsync, None, cursor[CurMove],
-				CurrentTime) != GrabSuccess)
-		usleep(1000);
+				e->time) != GrabSuccess)
+		return;
+	XGrabServer(dpy);
 
 	for(;;) {
 		while(!XCheckMaskEvent(dpy, ButtonReleaseMask | ButtonMotionMask, &ev)) {
@@ -445,7 +442,7 @@ snap_resize(XRectangle * r, XRectangle * o, BlitzAlign align,
 }
 
 void
-do_mouse_resize(Client *c, BlitzAlign align)
+do_mouse_resize(Client *c, XButtonPressedEvent *e, BlitzAlign align)
 {
 	int px = 0, py = 0, i, ox, oy, first = 1;
 	Window dummy;
@@ -463,14 +460,11 @@ do_mouse_resize(Client *c, BlitzAlign align)
 	XQueryPointer(dpy, c->framewin, &dummy, &dummy, &i, &i, &ox, &oy, &dmask);
 	XSync(dpy, False);
 
-	if(flush_events(ButtonReleaseMask))
-		return;
-
-	XGrabServer(dpy);
-	while(XGrabPointer(dpy, c->framewin, False, ButtonMotionMask | ButtonReleaseMask,
+	if(XGrabPointer(dpy, c->framewin, False, ButtonMotionMask | ButtonReleaseMask,
 				GrabModeAsync, GrabModeAsync, None, cursor[CurResize],
-				CurrentTime) != GrabSuccess)
-		usleep(1000);
+				e->time) != GrabSuccess)
+		return;
+	XGrabServer(dpy);
 
 	for(;;) {
 		while(!XCheckMaskEvent(dpy, ButtonReleaseMask | ButtonMotionMask, &ev)) {

cmd/wm/view.c

@@ -105,7 +105,7 @@ focus_view(View *v)
 	update_view_bars();
 	XSync(dpy, False);
 	XUngrabServer(dpy);
-	flush_events(EnterWindowMask);
+	flush_masked_events(EnterWindowMask);
 }
 
 XRectangle *

cmd/wm/wm.h

@@ -247,7 +247,7 @@ Area *new_right_column(View *v);
 /* event.c */
 void init_x_event_handler();
 void check_x_event(IXPConn *c);
-unsigned int flush_events(long even_mask);
+unsigned int flush_masked_events(long even_mask);
 
 /* frame.c */
 Frame *create_frame(Area *a, Client *c);
@@ -269,8 +269,8 @@ void init_lock_keys();
 unsigned long mod_key_of_str(char *val);
 
 /* mouse.c */
-void do_mouse_resize(Client *c, BlitzAlign align);
-void do_mouse_move(Client *c);
+void do_mouse_resize(Client *c, XButtonPressedEvent *e, BlitzAlign align);
+void do_mouse_move(Client *c, XButtonPressedEvent *e);
 void grab_mouse(Window w, unsigned long mod, unsigned int button);
 void ungrab_mouse(Window w, unsigned long mod, unsigned int button);
 

cmd/wm/wmiiwm.1

@@ -457,7 +457,7 @@ then the last rule should be defined in the following form:
 .SS Processing events
 Running
 .B wmiiwm
-in an useful way needs to control it through reading events
+in a useful way needs to control it through reading events
 from the
 .I /event
 file described above.