Posted by jpluimers on 2020/01/09
For my link archive: [WayBack] Getting the up to date project source code from the IDE – Dave’s Development Blog
It shows how to “using the IDE’s live files and if the IDE hasn’t got a file open, the file from disk”.
This gives you the same view the compiler in the IDE has.
Via [WayBack] Getting the up to date project source code from the IDE – David Hoyle – Google+
–jeroen
Posted in Delphi, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2020/01/09
On my list of things to play with: [WayBack] Joseph Redmon: How computers learn to recognize objects instantly | TED Talk | TED.com
It is about the super fast YOLO (You Only Look Once) engine that runs a full frame through a neural network performing object classification for all objects.
It can classify many frames per second.
More links on how to install it and get going:
–jeroen
Posted in Development, Software Development | Leave a Comment »
Posted by jpluimers on 2020/01/08
Sometimes simple examples are the best: [WayBack] Python – list transformation – Stack Overflow.
Interactive example (note you can run and save at repl.it in either [WayBack] Repl.it – Python 3 or [WayBack] Repl.it – Python 2; you can run but not save it at [WayBack] Welcome to Python.org: interactive Python shell):
# Links the documentation are Python 2, though everything works in Python 3 as well.
x = [1,2,3,4,5,11]
print("x: ", repr(x))
y = ['01','02','03','04','05','11']
print("y: ", repr(y))
# List comprehension https://docs.python.org/2/tutorial/datastructures.html#list-comprehensions
# ... using `str.format()` (Python >= 2.6): https://docs.python.org/2/library/stdtypes.html#str.format and https://docs.python.org/2/library/string.html#formatstrings
y = ["{0:0>2}".format(v) for v in x]
print("y: ", repr(y))
# ... using the traditional `%` formatting operator (Python < 2.6): https://docs.python.org/2/library/stdtypes.html#string-formatting y = ["%02d" % v for v in x] print("y: ", repr(y)) # ... using the format()` function (Python >= 2.6): https://docs.python.org/2/library/functions.html#format and https://docs.python.org/2/library/string.html#formatstrings
# this omits the "{0:...}" ceremony from the positional #0 parameter
y = [format(v, "0>2") for v in x]
print("y: ", repr(y))
# Note that for new style format strings, the positional argument (to specify argument #0) is optional (Python >= 2.7) https://docs.python.org/2/library/string.html#formatstrings
y = ["{:0>2}".format(v) for v in x]
print("y: ", repr(y))
# Using `lambda`
# ... Python < 3 return a list y = map(lambda v: "%02d" %v, x) print("y: ", repr(y)) # ... Python >= 3 return a map object to iterate over https://stackoverflow.com/questions/1303347/getting-a-map-to-return-a-list-in-python-3-x/1303354#1303354
y = list(map(lambda v: "%02d" %v, x))
print("y: ", repr(y))
Output:
Python 3 Python 2
–jeroen
Posted in Conference Topics, Conferences, Development, Event, Python, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2020/01/08
Reminder to Self:
{The class used to catch attempts to execute a virtual method of a freed
object}
TFreedObject = class
public
procedure GetVirtualMethodIndex;
procedure VirtualMethodError;
{$ifdef CatchUseOfFreedInterfaces}
procedure InterfaceError;
{$endif}
end;
If you encounter the class TFreedObject when doing a cast, then you’re working on a freed object and have FastMM4 enabled to detect that.
Source: [WayBack] FastMM4/FastMM4.pas at master · pleriche/FastMM4 · GitHub; FastMM4 – A memory manager for Delphi and C++ Builder with powerful debugging facilities
Note that if you want to see the underlying FastMM data for any TObject allocation, use this watch (where Self is the current instance):
PFullDebugBlockHeader(PByte(Self) - SizeOf(TFullDebugBlockHeader))^
You can also put a ,r behind it to see the fields of this structure:
(Reserved1:nil; Reserved2:nil; AllocatedByRoutine:$41BF74; AllocationGroup:0; AllocationNumber:592682; AllocationStackTrace:(4224198, 4233131, 4235210, 11103806, 6552132, 131126, 6597961, 11106984, 4235210, 11107153, 11104090); AllocatedByThread:90428; FreedByThread:90428; FreeStackTrace:(4241541, 131126, 4235210, 11103806, 6552132, 131126, 6597961, 11106984, 4235210, 11107153, 11104090); UserSize:36; PreviouslyUsedByClass:132272; HeaderCheckSum:2673350594)
–jeroen
Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | Leave a Comment »
Posted by jpluimers on 2020/01/08
As I will likely need this one day: [Archive.is / WayBack] Crosscompiling with Lazarus 1.8 on Linux Mint 18.3 | The Programming Works.
There are quite a few one-time manual setups to initially set this up, but after that it’s a piece of cake.
via:
There’s a lot to like about Lazarus. To automate building for multiple targets, a nice option is Build Modes and the menu option “Compile many Modes”. From command line, you can use
lazbuildwith--operating-system,--cpu, or--build-modeswitches.
–jeroen
Posted in Development, FreePascal, Lazarus, Pascal, Software Development | Leave a Comment »
Posted by jpluimers on 2020/01/07
[WayBack] Mads Kristensen on Twitter: “Visual Studio Tip: A blue dot in the margin indicates a switch of threads while stepping through debugging. #vstip… “
–jeroen
Posted in .NET, Development, Software Development, Visual Studio and tools | Leave a Comment »
Posted by jpluimers on 2020/01/07
On my list of things to try:
PiServer is our new piece of software that makes it easy to create a network of Pis you can centrally control — ideal for your computing classroom or club!
Source: [WayBack] The Raspberry Pi PiServer tool – Raspberry Pi
Via: [WayBack] Use PiServer to easily set up a network of client Raspberry Pis connected to a single x86-based server via Ethernet. With PiServer, you don’t need SD card… – Raspberry Pi – Google+
–jeroen
Posted in Development, Hardware Development, Hardware Interfacing, Raspberry Pi | Leave a Comment »
Posted by jpluimers on 2020/01/07
In case I ever need a fading effect between 2 panels on one form, there is some code that will get me started.
I’d probably code it in a different design (without a global variable), but it works so can be a good source of ideas.
Source: Delphi/FadingEffect at master · tothpaul/Delphi · GitHub
Via: [WayBack] VCL Tiny demo of a Fading effect for Delphi Tokyo – Paul TOTH – Google+
–jeroen
Posted in Delphi, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2020/01/06
When you get this on a TV from samsung “software update” “this function is not available” – Google Search, then usually you try to update the software when it is not in “watch TV” mode, but a different mode using the network (like web browsing).
See the photos below.
–jeroen
Posted in LifeHacker, Power User | Leave a Comment »
Posted by jpluimers on 2020/01/06
This is a reminder to check when the source code was actually released:
–jeroen
Posted in 6502, Apple, Classic Macintosh, History, Power User | Leave a Comment »
The Wiert Corner - irregular stream of stuff 