Page 1 of 1
Posted: Fri Jul 12, 2002 10:38 am
by LCDMan
Is there any way to query the unit to:
a. Determine if the backlight is currently on/off.
b. Read the 40 characters stored as the startup/bootup screen.
Thanks,
LCDMan.
Posted: Fri Jul 12, 2002 10:42 am
by Henry
No there is no way to read those values from memory.
Posted: Fri Jul 12, 2002 10:46 am
by LCDMan
Thanks.
Is there any intention of adding these features for any future models?
LCDMan.
Posted: Fri Jul 12, 2002 10:50 am
by Henry
On the new graphic displays GLK16080-20 you will be able to perform a file dump getting the startup bitmap from memory...
but I don't see why one would want that, especialy the backlight status...
Posted: Fri Jul 12, 2002 11:02 am
by LCDMan
Well, I am writing some C++ code to communicate with the unit and I am writing a ToggleBacklight() function.
Now, if the user only uses my software to "talk" to the LCD, then there is no problem, but assume that he/she has used some other app and that app has turned on the LCD backlight. Now when my app starts up, it expects the backlight to be off and hence my ToggleBacklight() will perform incorrectly, since I cannot read the current status of the backlight at my app startup.
Sorry for the long post, but I just wanted to explain why I needed it.
Thanks,
LCDMan.
Posted: Fri Jul 12, 2002 11:12 am
by LCDMan
Nevermind, I figured out a way to do it
Just set the backlight to off, first thing when the app starts up, so I have a known "good state".
DuH! It's so simple, wonder why I didn't think of that before....
Posted: Wed Sep 11, 2002 7:18 pm
by zedgama3
The hardest answer to find is the one directly under your nose.
Posted: Thu Sep 12, 2002 10:16 am
by Henry
And then you slap your self and thing "what the heck was I thinking!?!?!"
Posted: Thu Sep 12, 2002 10:40 am
by LCDMan
Exactly!
