"Child Lock" Screen on TM172DCLxxx

[sardila]

Hi Guys,

I am planning to implement a "Child lock" screen or lock screen after a x period of inactivity. I have an idea using the backLight timer to trigger a local timer which launch a pop-up screen which I design already. My question is in regards the system flag or timers documentation. I haven't found a proper documentation about those topics. Any ideas??? 

I much appreciate your suggestions,

[Bastian_Schmitz · Accepted solution]

You can find in the follow link an example how you could start a procedur regarding to inactivity

Example check for inactivity 

And you could check in you code the value of sysBacklight.

0 = Min Backlight active

1 = Backlight on

2 = Timer are running

You can adjust the time for sysBacklight via Par_BackLIghtTime

[sardila · Accepted solution]

Hi,

Thanks for your advise. Finally, I used a structure call  sysLCDPressed which triggers a timer. I could not find any documentation about this, I just tried and worked.

timer_LCD_Lock(IN:=NOT sysLCDPressed.is_LCD_pressed,PT:=60000);

if timer_LCD_Lock.Q then 

var_chck := Video_SendEvent (kWM_KEY, kKEY_VK_F8); 

end_if;

Thanks