Index: gl-slideshow.fs
==================================================================
--- gl-slideshow.fs
+++ gl-slideshow.fs
@@ -217,44 +217,48 @@
     THEN
     rdrop ;
 
 : (reshow) ( -- )
     0e >y-pos <draw-slide current-slide @ draw-slide draw-slide>
-    1 level# +! BEGIN  prefetch slide-input  level# @ 0= UNTIL ;
+    BEGIN  prefetch slide-input  level# @ 0= UNTIL ;
 
 : reshow ( -- ) [IFDEF] android  kbflag @ IF  togglekb  THEN [THEN]
-    slideshow-init (reshow) ;
+    1 level# +! slideshow-init (reshow) ;
 
-: thumb-input ( -- )
+: up-down ( -- )
     ekey? IF  ekey case
 	    k-up    of  [ thumb# dup * negate ]L thumb-slide  endof
 	    k-down  of  [ thumb# dup *        ]L thumb-slide  endof
+	    #esc    of  -1 level# +!                          endof
 	endcase
-    THEN
-    >looper ?esc
+    THEN ;
+
+: thumb-input ( -- ) up-down
+    >looper
     *input >r r@ IF
-	case  r@ action @  r@ action on
-	    1 ( AMOTION_EVENT_ACTION_UP ) of
+	r@ action @
+	case  1 of
 		short? IF
 		    thumb# dup click-regions
 		    thumb# * + current-slide +!
-		    -1 level# +!  (reshow)  1 level# +!
+		    (reshow)  1 level# +!
 		    0 thumb-slide
 		THEN
+		r@ action on
 	    endof
-	    0 of  !click  r@ y0 @ last-y0 !  endof
-	    2 of
+	    abs 1 <> IF
 		thumb# r@ y0 @ last-y0 motion-y0 ['] +thumb-slide do-motion
-	    endof
-	    last-y0 motion-y0 ['] +thumb-slide drag-motion
+	    ELSE
+		last-y0 motion-y0 ['] +thumb-slide drag-motion
+	    THEN  0
 	endcase
     THEN
     rdrop ;
 
 : rethumb ( -- ) [IFDEF] android  kbflag @ IF  togglekb  THEN [THEN] 0e >y-pos
-    slideshow-init 0 thumb-slide
-    1 level# +! BEGIN  prefetch-thumb  thumb-input  level# @ 0= UNTIL ;
+    1 level# +! slideshow-init 0 thumb-slide
+    BEGIN  prefetch-thumb  thumb-input  level# @ 0= UNTIL ;
 : slide-show ( addr u -- )
     slidelist $[]slurp-file current-slide off reshow ;
 : thumb-show ( addr u -- )
     slidelist $[]slurp-file current-slide off rethumb ;
 

Index: gl-terminal.fs
==================================================================
--- gl-terminal.fs
+++ gl-terminal.fs
@@ -252,11 +252,11 @@
     gl-xy @ scroll-y @ dup r@ + within 0= IF
        gl-xy @ 1+ r@ - 0 max s>f set-scroll
     THEN  rdrop  need-show off ;
 
 [IFUNDEF] win : win app window @ ; [THEN]
-: screen-sync ( -- )  need-sync @ win and IF
+: screen-sync ( -- )  need-sync @ win and level# @ 0<= and IF
 	show-cursor screen->gl need-sync off  THEN ;
 
 : config-changer ( -- )
     getwh  >screen-orientation
     need-sync on ;
@@ -293,13 +293,12 @@
 	    ELSE  last-y0 motion-y0 ['] +scroll drag-motion  THEN
 	    0
 	endcase
     THEN  rdrop ;
 
-:noname ( flag -- flag ) screen-sync
-\    [: touch>event screen-slide ;] is android-touch
-    screen-slide scroll-slide ; IS screen-ops
+:noname ( flag -- flag ) level# @ 0> ?EXIT
+    screen-sync screen-slide scroll-slide ; IS screen-ops
 
 ' gl-type ' gl-emit ' gl-cr ' gl-form output: >screen
 
 >screen
 ' gl-atxy IS at-xy

Index: gles2/android.fs
==================================================================
--- gles2/android.fs
+++ gles2/android.fs
@@ -191,11 +191,12 @@
 \ : >looper  BEGIN  0 poll_looper 0<  UNTIL looper-to# poll_looper drop ;
 \ : ?looper  BEGIN >looper app window @ UNTIL ;
 
 :noname  0 poll? drop  defers key? ; IS key?
 Defer screen-ops ' noop IS screen-ops
-:noname  need-show on  BEGIN  >looper key? screen-ops  UNTIL
+:noname
+    need-show on  BEGIN  >looper key? screen-ops  UNTIL
     defers key dup #cr = key? and IF  key ?dup-IF unkey THEN THEN ;
 IS key
 
 : enum dup Constant 1+ ;
 0

Index: gles2/gl-terminal.fs
==================================================================
--- gles2/gl-terminal.fs
+++ gles2/gl-terminal.fs
@@ -252,11 +252,11 @@
     gl-xy @ scroll-y @ dup r@ + within 0= IF
        gl-xy @ 1+ r@ - 0 max s>f set-scroll
     THEN  rdrop  need-show off ;
 
 [IFUNDEF] win : win app window @ ; [THEN]
-: screen-sync ( -- )  need-sync @ win and IF
+: screen-sync ( -- )  need-sync @ win and level# @ 0<= and IF
 	show-cursor screen->gl need-sync off  THEN ;
 
 : config-changer ( -- )
     getwh  >screen-orientation
     need-sync on ;
@@ -293,13 +293,12 @@
 	    ELSE  last-y0 motion-y0 ['] +scroll drag-motion  THEN
 	    0
 	endcase
     THEN  rdrop ;
 
-:noname ( flag -- flag ) screen-sync
-\    [: touch>event screen-slide ;] is android-touch
-    screen-slide scroll-slide ; IS screen-ops
+:noname ( flag -- flag ) level# @ 0> ?EXIT
+    screen-sync screen-slide scroll-slide ; IS screen-ops
 
 ' gl-type ' gl-emit ' gl-cr ' gl-form output: >screen
 
 >screen
 ' gl-atxy IS at-xy