Posts related to (software) programming
Yes, you read that right 🙂 Back in 2007 or so, I was trying to understand how web servers work — coming from a desktop application background. All my programming life, I write desktop applications both standalone and networked (like a chat using raw sockets or using MSMQ for reliable message transport). The web was …
There’s rarely a reason to do this, but nonetheless it’s nice to know how to do it — should you have the need for it. Most of the time, we access the objects property values to do operations on them like adding or subtracting, etc. We really don’t do these operations on the object directly, …
Let’s do some multiverse madness here and do something specific but do it across different programming languages! 🙂 For this one, let’s make the class or rather the instance of it — callable; that is, instead of the client invoking its method, we invoke itself. What do I mean by this? Most of us call …
Have you been doing GUI programming lately? Maybe even years…. or decades? I am…for decades and then years ago I needed to write a GUI application in Python and it wasn’t easy to say the least. However, after years of doing it, I realized something — something that writing GUI in Python taught me — …
In this series, we’ll be doing some IOT-related applications using Python and Mosquitto, so if you’re interested in IOT or is currently in an environment where you hear Industry 4.0 then you wouldn’t want to miss this series 🙂 Before you proceed, make sure you’re familiar with Python, and it’s also a good idea to …
Let’s do something fun with VB6! Let’s try to create a Paint application! As soon as I learned about PictureBox in VB6, I’ve always wondered how to create an application like MS Paint, but start with something super basic — just be able to draw something on the PictureBox. Decades ago I created that but …
This is part 2 or a follow up blog of the previous VB6 blog regarding ByVal and ByRef which explores a use case that I often use when defining functions where I return a boolean and pass the value through parameter(s). If you haven’t read that blog, here’s the link (cause this expects you to …
One of the things new (or even experienced) VB6 programmers need to know about are the relevance/importance of ByVal and ByRef when passing parameters to a function or subroutine, as not knowing this could cause hard-to-detect bugs and unexpected results — and not being able to create more advanced codes. ByVal ByVal means pass “by …
Although implementing Dependency Injection design pattern and Callbacks can be implemented in most programming languages (even in VB6), it’s just cleaner/neater to do in Python. These are also scenarios or use cases where you intentionally would pass the function object instead of it’s return value. Function as dependency To write a function that behaves differently …
Using Functions for Dependency Injection and as Callback in Python Read More »
One of the important (and usually confusing) concepts a developer needs to understand in Python is the use (or omission) of parentheses. This may seem so trivial, even obvious but it’s something that can cause problems to a lot of programmers, especially new ones coming from a different programming language. At best it could cause …