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Programming problems with the steampunk cpu thermometer widget.

During the recent changes to the code to read the temperatures from Speedfan I was stuck, the problem was that I was experiencing errors that I just wasn't expecting as I had not encountered them before. I thought it was my mishandling of the string functions but in actual fact I was trying to read a line from the output of the .exe that did not yet exist. A simple programming error. I am still unused to the errors that the widget runtime engine throws up so they can be confusing - to me. You know how it is with bugs until you get your head around them they can be difficult to actually 'see'. Once the bug was sorted it was all plain sailing.

I've actually made the thermometers work at least on Windows. There is a
problem with determining which sensor to use which I will overcome when
I've tested it on a few more windows machines. Speedfan provides the
temperatures in some shared memory but Speedfan misses one important bit
of information, it does not say which is which. You have to read a
separate configuration file to determine which sensors actually exist,
then assign them to each temperature 'feed'. It is complicated somewhat
by the fact that different machines can have an entirely different
number of sensors. For example, my machine has two hard drives which can
supply temperature readings whereas most will only have one.

I have used the first Speedfan sensor for GPU and the seventh for CPU
because that is how it is in my machine, other machines will be entirely
different. The sensor names are unfortunately not generic but are
specific to the hardware, so my GPU sensors are marked 'Nvidia', other
manufacturers cards may be identified differently. It might be quite
difficult to determine which to use.

Stuff to do before I am happy.

Thermometer MkI
===============
Check the mercury/alcohol pushes up the indexes - done
Make the alarm bell ring on an over-temperature (red) alarm
Check the speedfan configuration file, rename it as backup, change
speedfan startup minimised - done
Ensure any Widnows-specific code is only called when the o/s is non-Mac
Ensure any speedfan-specific code is only called when speedfan is
installed.
Check the cpu/gpu temperatures can be extracted from hardware with
differently identified sensors
Add Mac OS/X temperature code ( an unknown quantity this )
Alarm clapper state saved to preferences
Alarm clapper state restored on bell ding
Alarm cease on bell ding
If speedfan is not installed provide a pop-up with an installation link
Centigrade vs fahrenheit toggle switch to the left of the lower bracket,
determines scale &c

Move the vertical lines on the paper from right to left according to the
sampling interval
Draw the chart
Write up full instructions page on the website

Submit to yahoo widgets
Submit to other widget site

Thermometer MkII
================
allow option to display multiple thermometers for each additional sensor
a 1-8 toggle for each sensor on the top right hand side of the wooden base
switch from mercury to alcohol and vice versa
retain temperature history for each sensor in an array
bottom bar slider to show the historical temperatures in digital form

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