Questions tagged [vb6]
Visual Basic 6.0 (VB6) is the "third-generation" event-driven programming language and integrated development environment (IDE) from Microsoft for its COM programming model. It was also considered a relatively easy programming language to learn and use, because of its graphical development features and BASIC heritage.
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Faster VB6 / VBA class deallocation
VB6 / VBA is slow to deallocate class instances
VB* class instance deallocation becomes exponentially slower the more instances of that particular class there are.
Quick test. You will need:
Guido's ...
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ADODB Wrapper Class (Revisited)
I recently posted this question on my implementation of an ADODB Wrapper Class. I realized in my own review that I was missing some very important things, so much so, that I decided it would be worth ...
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ADODB Wrapper Class
I use ADO (specifically for accessing SQL) daily at work. So, I finally decided that I was going to create a class that makes it simple for myself and other programmers on the job to use. Just the ...
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App for providing accounting solutions for clients
I have a VB6 app that has existed for more than 7 years to which I have a few clients using it for their accounting solutions. Now my problem is that a particular client has grown so big with a 15GB ...
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Format RGB Long as hex string in VB6
This is how I convert e.g. RGB(255, 0, 0) (where red is stored in the least significant byte of a Long) to a 6-digit hex string <...
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Shared VB6 *and* VBA extensibility add-in with OnConnect and OnDisconnect handling
Rubberduck works well enough when the VBE is of the VBA variety, but it currently only works when the Rubberduck is configured to load at VBA start-up, and it has a tendency to crash the host ...
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Multi-dimensional array sort and filter functions
As I said in my last post Multi-dimensional ascending and descending sort array function, I'm back with the final version of the code.
Added features:
Filter array function by following parameters: <...
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Implementation of the Access version DBLookup() in VB6
I've tried to implement the access function DBLookup() in VB6 for a project I'm doing. Does anyone have comments on how well done it is and what could be improved? ...
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Growing my own Tree (Structure)
Summary
VB6 doesn't have a great selection of data structures to work with, so again I find myself creating my own. I have a need to dynamically generate a directory structure on the file system. The ...
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Calling Stored Procedures with Lots of Parameters
I have this piece of code for running a Stored Procedure, and I was wondering if there is a way of cutting code like:
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Converting to Roman Numeral with Recursive Algorithm
Summary
I'm getting ready to dive back into a "more proper" project, so I wanted to take a moment to get my TDD hat on before doing so. I decided to tackle this Roman Numeral Kata for practice. The ...
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Building a better Collection. Enumerable in VBA
VBA's 'Collection' is.... lacking, so, I've been working on a better Collection object that implements many of the features of C#'s Enumerable. This is very much inspired by this question and a follow ...
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No more Fizzbuzz. How about Hello World instead?
Write a program that prints the numbers from 1 to 100. But for multiples of three print “Fizz” instead of the number and for the multiples of five print “Buzz”. For numbers which are multiples of both ...
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Generating Random RGB Colors
I have a function for generating RGB colors in VB6.0, and it is working properly. Please suggest improvements for this, if any.
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Extending the VBA Extensibility Library
The Microsoft Visual Basic for Applications Extensibility library let's us meta-program VBA, but the way it handles (or rather, doesn't handle) getting to the actual subs and functions is clunky at ...
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File reader/writer (text)
Following-up on this post, I wanted to be able to use my FileWriter with a syntax reminiscent of .net's using blocks, which ...
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FileWriter supporting writing to multiple files
I got bored with opening and closing files whenever I need to write to one, so I wrote a FileWriter class that's used like this:
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Recursively searching the Windows Registry
This function is part of a the Registry class that can be found on Google Drive. The class was originally written by Steve McMahon for VB6, but I ported it to VBA ...
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Materializing any ADODB Query
Following-up on Creating ADODB Parameters on the fly and pushing the "wrapping" of ADODB a step further, I have written two more classes that allows me to expose methods that don't require a ...
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Creating ADODB Parameters on the fly
I have put together a small wrapper class to simplify creating parameterized ADODB queries with VB6/VBA. At this point I'm keeping things simple, so it's only supporting input parameters and from what ...
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Dictionary<TKey, TValue> Implementation
This class encapsulates a List<KeyValuePair> (see List<T> implementation here, and ...
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KeyValuePair implementation
In order to implement my own Dictionary<TKey, TValue> in VB6, I've implemented a KeyValuePair class, which can accomodate ...
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Nullable<T> Implementation for VB6/VBA
Because I was spoiled with C# and the .NET framework, whenever I have to work with VB6 I feel like something's missing in the language. A little while ago I implemented a ...
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Revisited IsTypeSafe method implementation for "type-safe" List
Following up on List<T> implementation for VB6/VBA, I'd like some thoughts about the revisited IsTypeSafe function, below.
The previous version pretty much ...
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List<T> implementation for VB6/VBA
Recently I decided VB6's Collection wasn't enough for my needs, so I decided to implement something like C#'s List<T>. ...
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A CSharpish String.Format formatting helper
A while ago I implemented .net's string.Format() method in VB6; it works amazingly well, but I'm sure there has to be a way to make it more efficient.
I'll start ...
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A more readable InStr: StringContains
Consider the following:
If myString = "abc" Or myString = "def" [...] Or myString = "xyz" Then
In C# when myString == "abc" ...
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Converting base-10 numbers into base-26 letters
I'm writing something that basically takes a bunch of files and renames them into a nice format, such as pic_000.jpeg, ...
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Avoiding the 'possible loss of data' compiler warning
I'm writing a file I/O DLL in C++ which is going to be used from VB6. The interface is already fixed, and uses INT64/Currency as the general integer data type.
Now I have this function:
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Is it a bad programming practice to declare variable in a loop?
Today, I came across a code example like the following:
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VB6: String Searching Performance
5 years ago, when i was in love with VB, I created this simple program to detect if a file is virus or not.
What I'd like is to see if you can help me optimize it, ...
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Shuffling algorithm for a "guess that tune" game
I'm making a "guess that tune" game in Visual Basic 6 that is supposed to play each song in a random order:
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