[schmrz]

import key_codes, appuifw, e32, graphics

POINT_SIZE = 10
POINT_COLOR = (0, 0, 255) #Plava
MOVE = 1

def handle_redraw(rect):
    global Loc_X, Loc_Y
    Loc_X = 10
    Loc_Y = 10
    panel.clear((0,0,0))
    panel.point((Loc_X, Loc_Y), width=POINT_SIZE, fill=POINT_COLOR)

    canvas.blit(panel)

def handle_events(event):
    if event['keycode'] == key_codes.EKeyLeftArrow:
        Loc_X = Loc_X - MOVE
        lock.signal()
    elif event['keycode'] == key_codes.EKeyRightArrow:
        Loc_X = Loc_X + MOVE
        lock.signal()
    elif event['keycode'] == key_codes.EKeyUpArrow:
        Loc_Y = Loc_Y - MOVE
        lock.signal()
    elif event['keycode'] == key_codes.EKeyDownArrow:
        Loc_Y = Loc_Y + MOVE
        lock.signal()
    elif event['keycode'] == key_codes.EKeySelect:
        quit()
        
def quit():
    running = 0
    lock.signal()
    
running = 1
appuifw.app.exit_key_handler = quit
appuifw.app.screen = 'large'

canvas = appuifw.Canvas(redraw_callback = handle_redraw, event_callback = handle_events)
W,H = canvas.size
panel = graphics.Image.new((W, H))
appuifw.app.body = canvas

lock = e32.Ao_lock()

while running:
    handle_redraw((W, H))
    lock.wait()


print Loc_X + ' ' + Loc_Y

I just get black screen ( panel.clear((0,0,0)) ) and then the application freezes...Why?

[schmrz]

can anyone see the problem??

[schmrz]

i can't believe that there is no one that can help me...

[schmrz]

77 views no answer... is it that hard??

[RICH?]

I tried to get your code working but couldn't after correcting it a bit it still didn't work and gave no errors .So I decided to rewrite it completely:

import key_codes, e32, graphics
from appuifw import *

point_size=10
point_color=(0,0,255)
move=1

loc_x=10
loc_y=10

def handle_redraw(rect=None):
  panel.clear(0)
  panel.point((loc_x,loc_y),point_color,width=point_size)
  canvas.blit(panel)


def handle_event(event):
  global loc_x,loc_y,move
  if event['keycode'] == key_codes.EKeyLeftArrow:
    loc_x = loc_x - move
  elif event['keycode'] == key_codes.EKeyRightArrow:
    loc_x = loc_x + move
  elif event['keycode'] == key_codes.EKeyUpArrow:
    loc_y = loc_y - move
  elif event['keycode'] == key_codes.EKeyDownArrow:
    loc_y = loc_y + move
  elif event['keycode'] == key_codes.EKeySelect:
    exit()
  handle_redraw()


def exit():
  lock.signal()

running=1
app.screen='large'
app.exit_key_handler=exit

canvas=Canvas(redraw_callback=handle_redraw,event_callback=handle_event)
w,h=canvas.size
panel=graphics.Image.new((w,h))
app.body=canvas

lock = e32.Ao_lock()
lock.wait()

Now it works fine on my 6680 and should work on all other devices too