DevX Tips Bank: Visual Basic

A Simple Password-Checking Routine

Here's a simple password-checking routine that ensures that the user-entered password …

Get the Last Filled Row or Column in Any Excel Spreadsheet

Here's how to find the last Excel spreadsheet row or column containing data.

Measuring A Program's Speed

The simplest way to measure the performance of a block of code (or an entire program) is …

Use GetBetween to Parse a String Between Two Strings

This tips shows how to use GetBetween to parse a String between …

Associate a File Extension to a Program

This tip is an addendum to a previous tip demonstrating how to use …

Write a VB6 String that Contains Double Quotation Marks

There are typically two ways to express the string that contains double quotation marks.

Make Your Mouse Pointer Tremble

To make your mouse pointer appear to be trembling, you first create a form with

An Improved szEncryptDecrypt VB6 Funtion

The szEncryptDecrypt function in a previous tip did not handle …

How to Draw a Spiral in VB

Using a loop and the maths formula for a spiral, you can use

Clear All Occurences of Extra White Space

This function clears all occurences of extra white space (spaces, tabs, blank lines) and …

Replace All Occurences of Numbers in the Input String

This function replaces all occurences of numbers in the input string with '#' and returns …

Calculate the Angle Between Two Lines

This code shows you how to calculate the angle between two lines using vectors and an …

Displaying a Local Image in a WebBrowser Control

Find out one more way to display a local image in a WebBrowser control.

Printing Color Lines in VB

Have you ever had a problem printing lines in color from VB6 (SP4)?

Prevent an IP from Connecting to Your WinSock Server Application

It's really quite simple to prevent an IP from connecting with your server or to allow …