CodeGuru Staff

. Have you ever got lost among couple of dozen of functions in a file of 1000’s of lines? Then make contents and jump directly to the function definition! Download macro file Assign hot key to "AutoContentsGo" macro Press hot key on empty (!)  line to generate contents Press hot key on any line of […]

Java Native Interface is a standard programming interface for writing Java native methods and embedding the Java virtual machine into native applications. The primary goal is binary compatibility of native method libraries across all Java virtual machine implementations on a given platform. We can embed java inside any application developed using C/C++ using Java Native […]

Many programs deal with sensitive data that has to be stored in memory, the windows registry or a file in the disk. It is common for programmers to “invent” an encryption algorithm which most of the time is very weak. However, the Win32 API provides us with the ability to use pretty good encryption algorithms […]

Environment: Tested on VC5 These three routines can be used to perform a qsort on a CStringArray.  It is a fairly simple hack, but still a hack.  It sure is fast, though. // first, declare these somewhere void SortStringArray (CStringArray& ar, BOOL bDescending); int CompareDescending(const void *a, const void *b); int CompareAscending(const void *a, const […]

If you experience a GPF in devshl.dll when starting VC++, try the following to see if it makes a difference. I posted these directions on a usenet newsgroup in response to a plea for help and a few people replied that it did the trick for them. Start regedit Open HKCUSoftwareMicrosoftDevStudio6.0 (or 5.0). Select the […]

Environment: VC6.0 Win98 Hi all, There is a code for Dial-Up connection. Aleksander Mikula had already posted his code for disconnecting dial-up connection. This is other part od same problem (accessing internet via phone line). This task can be done by using CInternetSession::GetFtpConnection() function for example, but only if all parameters in dial-up dialog are […]

Environment: ******–> Problem: Using the WinInet class there4s a slight problem when disconnecting from the Internet because shutting down der Internet session doesn4t close the dial up connection. Unfortunaltely CInternetSession::Close() wont give any possibility of getting the phone line free. Solution: The RAS Api has got a method called RasHangUp() which does that job but […]

MFC 6 supports Custom Draw Tree Control, which makes setting different colors for individual tree items much simpler (see Zafir Anjum’s article “Setting color and font attribute for individual items” to find out how to do it without Custom Draw support). Custom draw tree control sends an NM_CUSTOMDRAW notification to its owner. The trick is […]

I admire all the efforts done in this line of directory tree controls in the recent past — Nicola Delfino (Directory browser), Kirk Stowell(MFC Extension classes..) and many more. Unfortunately I cannot add the code to my existing projects as my code is multithreaded and uses different logic. With more people showing interest in this […]

, and is a varation on Guy Gascoigne’s CTrackLookButton class. This CHoverButton class is best used in a bank of radio buttons, and behaves like scripted mouse sensitive “pop-up” buttons on web pages. This article describes how to use this class as a bank of 4 radio buttons. Add 4 owner drawn buttons to a […]

For this article you require VC++ 6.0 or VC++ 5.0 with Internet Client SDK. Further Internet Explorer 4.0 or greater must be installed with Shell Integration. You may have noticed that when mouse is placed over .doc files (shown in explorer or any where by shell) generated from Word 97 a tooltip showing the author […]

Introduction Darren Richard’s code template add-in for Visual C++ is great. It provides a way to insert commonly used code fragments into a file merely by clicking a menu item. Furthermore, code fragments can be modified by simply editing a simple text file. After I used it for a while I found some features lacking […]