Software Development Forum

Something that we normally have to do at one point is right click on a richtextbox etc to copy/paste. Now, we all know there are keyboard shortcuts but for the end user it is better to have this feature. Here is the basic code to allow you to add this …

An example how to plot the function y = sin(x) using the WinApi function SetPixel(). The plot is centered along a line at pixel y = 200. Add an x-axis and a couple of tickmarks and it could look impressive.

This program uses Python module re for splitting a text file into words and removing some common punctuation marks. The word:frequency dictionary is then formed using try/except. In honor of 4th of July the text analyzed is National Anthem of USA (found via Google).

Just a little fun with Python's named tuple, behaves like a class but is much leaner.

Applying the famous Gauss algorithm to determine the date of Easter for a given year.

Factorials get large very rapidly. The factorial of 13 is !13 = 1*2*3*4*5*6*7*8*9*10*11*12*13 = 6227020800. This number already exceeds the unsigned long integer, and gets into the real money as the politicians say! This program uses an array of characters to store the factorial as a numeric string. Go ahead, …

Here's I wrote some code to insert\retrieve images from SQL Server database 1- Create table to hold Image ID, Name and itself [CODE=SQL] USE [ImagesDatabase] GO /****** Object: Table [dbo].[Image] Script Date: 07/10/2009 23:46:46 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO SET ANSI_PADDING ON GO CREATE TABLE [dbo].[Image]( …

The syntax of the [icode]str.format()[/icode] method described in [url=http://docs.python.org/library/string.html#formatstrings]the python 2.6 documentation[/url] looks both powerful and complex. The idea of this thread is to start a collection of nice formatting examples which will ease the task of mastering this function. Please post useful examples, and document them :)

Demonstrates the Right Hand Rule maze solving algorithm, with some sweet console colors and text display and erasing, in Windows. Note that if the Start is moved away from all the walls in the maze, the right hand rule fails, circling endlessly. Also, a similar failure happens if the Start …

Quite commonly I see people using one of the Parse routines then catching the exception thrown if the parse fails. This is, in general, a bad practice as throwing an exception is slower than using the corresponding TryParse method. This short snippet shows the routines that I used to measure …

Using the PySide GUI toolkit will make selecting, copying and pasting encrypted and decrypted text somewhat easier. Not ideal yet, but it will be a good start for those of you who are not very familiar with GUI programming.

Simple Encryption and Decryption Function using rijndael algorithm. Imports this: Imports System.Security Imports System.Security.Cryptography Imports System.IO Imports System.Runtime.InteropServices Imports System.Text.RegularExpressions Imports System.Text Source : [snipped]

This short snippet shows you how to preprocess a text to remove punctuation marks, then do a word frequency count using Counter() from the Python module collections. Finally, two sorts are applied to display words with matching frequency in alphabetical order.

The code shows you how to create a persistent to file dictionary of data using the python module shelve.

This is a really simple way to maintain an options file for your application in case you don't wanna mess with registry entries, along with added support for comments inside the file. The file will be created at the same location with the executable. In addition, if an error is …

Here is exercise in error handling, while looping and for looping with itertools.chain. It is also exercise of functions not letting user to go without giving proper input. I call them to myself 'jail functions'. Here you could add as an exercise breaking out of loop and continuing until user …

More or less a templet database that allows you to load, save, add, list, search, edit and delete data items. I used movies as an example, but you can easily change that to make a database of many other things.

[B]This will works Recusivly and easily[/B]

This function takes a string and an output buffer and a desired width. It then copies the string to the buffer, inserting a new line character when a certain line length is reached. If the end of the line is in the middle of a word, it will backtrack along …

A simple test of a numeric string.

So you want to find out which day of the week you were born. Well at least some of us do. I actually wrote this program because my whole family was born on Sundays, and my friends didn't believe it! An oldie but goodie, moved from DeSmet C to Turbo …

Several people have asked about storing binary data in a database. I coded up an example today that uses an ADODB.Stream to copy the binary data but after some fiddling I found a more direct way. If you are using MS SQL Server, the easiest way I have found is …

In today's environment where just about anyone can snoop around your e-mail, it is prudent to securely encrypt your more private writings. This little Python program will make it easier to do so.

Uses the PySide GUI toolkit's QtMultimedia module to play a specified sound. You can change frequency/pitch and volume of the sine wave.

Enjoy.

This code snppet uses the wx.lib.filebrowsebutton.FileBrowseButton widget to pick a file, in this case a '.wav' sound file, and plays it with the wx.Sound widget.

A simple timer for Excel VBA Excel VBA does not have a timer control. The alternative is to use the Timer() Function, and that leaves much to be desired. This code should be placed in a code module. My need was to tend to an abandoned program that was waiting …

Here is a small--complete--program that includes a sub-routine that inputs two matrices and then multiplies them. Notes: * 1) I happen to like taking input from a text file. It eliminates the need to type input from the console, especially when debugging, it prevents the possibility of making typos. * …

[B]Simple C++ program for billing[/B] NB:Excuse me experts,,,,,This is only for beginners 1.copy and paste the program in a notepad 2.save the textfile with .cpp extension 3.select file type all 4.cut the textfile and paste it in your bin folder where turbo c is located 5.open turbo c and open …

OK, I've taken advice from some members here, and members from another forum. And I've come up with this, thouht I'd just share it with you.

I have recently been interested in Java Swing and Game development, so naturally I began creating many different 2D games. During them I found myself having to rewrite much code, but eventually I decided to write some classes that would help me whenever I wanted to make a game. Here …

I wanted a graphical representation of the listing of my files and folders from the command line interface, just like what the CLI **tree** would give on linux system, I really don't like how the same command is displayed on windows. So, I called on ma 'Cherie' Perl do it …

The days when the calculator had almost 3 thousand visits a day have gone. Since then, there have been several major versions and lots of minor versions. Somehow, I feel pleased in that the present core algorithm follows the rules of the first I read; of course, extending the simplicity …

I find that I occasionaally have special projects where it would be nice to have a context menu for files. I tend to write housekeeping scripts and it is convenient to be able to run these scripts against one or more files at a time without having to navigate and …

below mentioned is my code. My question is how do i make my b_btn to perform more then one action. Like when i click the back or forward button i want to make it more then one action. On clicking b_btn u go to image one and when we click …

Many situations arise when you have to choose between two options: true/false, male/female etc. This short snippet will only allow two chars to pass through: capital 'Y' or capital 'N'. The Read and ReadLine methods can serve also, but have the side effect you have to use Upper and Lower …

Here is a code snippet that calculates the probability of the outcome of a two sided game based on the capability of each side. I used it in my football league simulator program Could be used in any number of simulators which involve two parties. For equally strong parties, the …

Here is my first Code Snippet contribution: a C++ sub-routine that computes the roots of a quadratic equation. Notes: * This sub-routine checks if a = 0. * IF a = 0, then the equation is actually not a quadratic equation; it is a linear equation with one--if any--root. * …

This is a routine task best done with two regexp's when using perl.

I really got bored and tired of trying to find or remember some codes usage in so many files saved on my system, when it was needed. So, I called 'Monsieur' perl for help, hacking together some codes which works great for me and solve my problem of boredom. You …

The wxPython Phoenix project can be used with Python version 2 and version 3. The project applies pretty much the familiar wxPython code. Here we are testing a dragable borderless frame.

Add the snippet in your module. **Requirements:** * Make sure you have reference to M$ ActiveX Data Objects Library (ADODB) * A table field with OLE Object / BLOB as datatype * A recordset that is already oppened and ready to be use **To save Image on your table field, …

Quick sort is a faster way to sort a given array by recursion The algorithm goes like this: it first takes some index element and seperates all elements lesser than this with larger numbers then places this element in right place and does the same thing with all other

Lately, I was reading [this snippet](http://www.daniweb.com/software-development/python/code/453788/moon-phase-at-a-given-date-python) by vegaseat. I thought, why not do it in C#? But I would also like to add lattitude and logitude in the celestial calculations and draw a picture of the moon at that moment and location. Now the calculations can get a bit involved …

Just a code sample that allows you to play your midi or mp3 music files with Python and module pygame.

You can draw a number of shapes directly on the PyGame window, and then save the drawing to an image file.

This code show how to made a MDI Form Borderless. Tested on Visual Basic 6 under Windows XP SP3 platform.

I'm no pro when it comes to BASH, but I have been known to shell-script my way out of a problem here and there. One of the useful things you can do is a for-loop, whether it be used on file names, script arguments, or just a string of words. …

I'm no pro when it comes to BASH, but I have been known to shell-script my way out of a problem here and there. One of the useful things you can do is a for-loop, whether it be used on file names, script arguments, or just a string of words. …