diff --git a/programs/develop/examples/checkbox/trunk/macros.inc b/programs/develop/examples/checkbox/trunk/macros.inc
new file mode 100644
index 0000000000..14185dbfce
--- /dev/null
+++ b/programs/develop/examples/checkbox/trunk/macros.inc
@@ -0,0 +1,269 @@
+; new application structure
+macro meos_app_start
+ {
+  use32
+  org 0x0
+
+  db 'MENUET01'
+  dd 0x01
+  dd __start
+  dd __end
+  dd __memory
+  dd __stack
+
+  if used __params & ~defined __params
+    dd __params
+  else
+    dd 0x0
+  end if
+
+  dd 0x0
+ }
+MEOS_APP_START fix meos_app_start
+
+macro code
+ {
+  __start:
+ }
+CODE fix code
+
+macro data
+ {
+  __data:
+ }
+DATA fix data
+
+macro udata
+ {
+  if used __params & ~defined __params
+    __params:
+      db 0
+    __end:
+      rb 255
+  else
+    __end:
+  end if
+  __udata:
+ }
+UDATA fix udata
+
+macro meos_app_end
+ {
+  align 32
+  rb 2048
+  __stack:
+  __memory:
+ }
+MEOS_APP_END fix meos_app_end
+
+
+; macro for defining multiline text data
+struc mstr [sstring]
+ {
+  forward
+    local ssize
+    virtual at 0
+      db sstring
+      ssize = $
+    end virtual
+    dd ssize
+    db sstring
+  common
+    dd -1
+ }
+
+
+; strings
+macro sz name,[data] {       ; from MFAR [mike.dld]
+  common
+   if used name
+    label name
+   end if
+  forward
+   if used name
+    db data
+   end if
+  common
+   if used name
+    .size = $-name
+   end if
+}
+
+macro lsz name,[lng,data] {  ; from MFAR [mike.dld]
+  common
+   if used name
+    label name
+   end if
+  forward
+   if (used name)&(lang eq lng)
+    db data
+   end if
+  common
+   if used name
+    .size = $-name
+   end if
+}
+
+
+
+; easy system call macro
+macro mpack dest, hsrc, lsrc
+{
+  if (hsrc eqtype 0) & (lsrc eqtype 0)
+    mov dest, (hsrc) shl 16 + lsrc
+  else
+    if (hsrc eqtype 0) & (~lsrc eqtype 0)
+      mov dest, (hsrc) shl 16
+      add dest, lsrc
+    else
+      mov dest, hsrc
+      shl dest, 16
+      add dest, lsrc
+    end if
+  end if
+}
+
+macro __mov reg,a,b {         ; mike.dld
+ if (~a eq)&(~b eq)
+   mpack reg,a,b
+ else if (~a eq)&(b eq)
+   mov reg,a
+ end if
+}
+
+macro mcall a,b,c,d,e,f {   ; mike.dld
+ __mov eax,a
+ __mov ebx,b
+ __mov ecx,c
+ __mov edx,d
+ __mov esi,e
+ __mov edi,f
+ int   0x40
+}
+
+
+
+; optimize the code for size
+__regs fix <eax,ebx,ecx,edx,esi,edi,ebp,esp>
+
+macro add arg1,arg2
+ {
+   if (arg2 eqtype 0)
+      if (arg2) = 1
+         inc arg1
+      else
+         add arg1,arg2
+      end if
+   else
+      add arg1,arg2
+   end if
+ }
+
+macro sub arg1,arg2
+ {
+   if (arg2 eqtype 0)
+      if (arg2) = 1
+         dec arg1
+      else
+         sub arg1,arg2
+      end if
+   else
+      sub arg1,arg2
+   end if
+ }
+
+macro mov arg1,arg2
+ {
+   if (arg1 in __regs) & ((arg2 eqtype 0) | (arg2 eqtype '0'))
+      if (arg2) = 0
+         xor arg1,arg1
+      else if (arg2) = 1
+         xor arg1,arg1
+         inc arg1
+      else if (arg2) = -1
+         or  arg1,-1
+      else if (arg2) > -128 & (arg2) < 128
+         push arg2
+         pop  arg1
+      else
+         mov  arg1,arg2
+      end if
+   else
+      mov arg1,arg2
+   end if
+ }
+
+
+macro struct name
+ {
+  virtual at 0
+   name name
+   sizeof.#name = $ - name
+  end virtual
+ }
+
+; structures used in MeOS
+struc process_information
+ {
+  .cpu_usage               dd ?  ; +0
+  .window_stack_position   dw ?  ; +4
+  .window_stack_value      dw ?  ; +6
+  .not_used1               dw ?  ; +8
+  .process_name            rb 12 ; +10
+  .memory_start            dd ?  ; +22
+  .used_memory             dd ?  ; +26
+  .PID                     dd ?  ; +30
+  .x_start                 dd ?  ; +34
+  .y_start                 dd ?  ; +38
+  .x_size                  dd ?  ; +42
+  .y_size                  dd ?  ; +46
+  .slot_state              dw ?  ; +50
+                           dw ?  ; +52 - reserved
+  .client_left             dd ?  ; +54
+  .client_top              dd ?  ; +58
+  .client_width            dd ?  ; +62
+  .client_height           dd ?  ; +66
+  .wnd_state               db ?  ; +70
+  rb (1024-71)
+ }
+struct process_information
+
+struc system_colors
+ {
+  .frame            dd ?
+  .grab             dd ?
+  .grab_button      dd ?
+  .grab_button_text dd ?
+  .grab_text        dd ?
+  .work             dd ?
+  .work_button      dd ?
+  .work_button_text dd ?
+  .work_text        dd ?
+  .work_graph       dd ?
+ }
+struct system_colors
+
+
+; constants
+
+; events
+EV_IDLE        = 0
+EV_TIMER       = 0
+EV_REDRAW      = 1
+EV_KEY         = 2
+EV_BUTTON      = 3
+EV_EXIT        = 4
+EV_BACKGROUND  = 5
+EV_MOUSE       = 6
+EV_IPC         = 7
+EV_STACK       = 8
+
+; event mask bits for function 40
+EVM_REDRAW     =        1b
+EVM_KEY        =       10b
+EVM_BUTTON     =      100b
+EVM_EXIT       =     1000b
+EVM_BACKGROUND =    10000b
+EVM_MOUSE      =   100000b
+EVM_IPC        =  1000000b
+EVM_STACK      = 10000000b
\ No newline at end of file