CodeGuru Staff

Environment: This was built using Visual C++ 6.0 SP 2.I used 16-bit color bitmaps, so if your resolution is set to 256 colors, it will probably not look very pleasing. This is an updated version to my original posting. I have taken the comments that I received and have come up with a better version […]

Rotation sample: Unlike traditional rotation of images, where every n’th pixel is sampled and copied to the result image, this template provides much more accurate image rotation features (weighing the pixels). The template is instantiated with a specific pixel format and must be inherited to support pixel access functions for a specific bitmap implementation. This […]

What does it do? This derivation of CSliderCtrl allows the user to use the mouse or the keyboard to select a range in the slider control. The program can then use CSliderCtrl::GetSelection() to retrieve the range selected by the user. This is the way I thought that CSliderCtrl worked in the first place, only to […]

. This update fixes most bugs reported by users and adds the following enhancements to the library Tables can now have more than 1 visible print line. I.E. Multiline tables both static and virtual There is a rotated text function to print text oriented thru 360 degrees of rotation There is a static function to […]

Windows is really fun, mostly. But one of the things I miss about UNIX (or the IBM 1401) is the handy way it writes to a line printer. No sissy graphics, no obsequious “Page n of m” ( unless you want to write a lot of extra code), just thousands of sturdy fixed width lines […]

This article is an initial attempt to create an ActiveX control based on window’s control. In this article I have spuerclassed ListBox control to create an ownerdraw control. This ListBox contains text strings and user can specify the zero based index value to put divider lines in the list. For creation of the skeleton code […]

Author I will start developing the transmitter and during the development I will tell how to improve it so it will meet normal industrial demands of a multithreaded ActiveX control. I will also introduce the concept of Active Objects, meaning objects running in their own thread. During this introduction I will also give a Design […]

Ok, so what’s wrong with MFC’s ActiveX controls you ask.. Well, they are mostly ok, other than a few disadvantages that are sometimes unfelt and sometimes can a poor programmer quite a headache.. The main problems with MFC’s implementation of ActiveX controls (if you ignore the size of the MFC libraries) as I see it […]

Yet another string class? This class got its start a number of years ago. At that time, it was common to have to write even the simplest data structure class. Since then it has gradually grown and mutated at irregular intervals. The result is fairly ambitious, for a string class. Super String features string and […]

Have you ever found yourself looking at a design document with source code embedded and wondered why isnt this stuff formatted in a way that makes it easier to read? Have you wanted to print out some source and want to emphasize the comments and keywords? Well let me tell you I have. You can […]

How do I use it? The CPing::Ping() Member Function Important things to remember Little Q ‘n’ A What does it do? You may not know it, but there is a command built into windows called “ping”. You can go to a dos prompt while you’re connected to the Internet and type: ping www.codeguru.com This command […]

Environment: VC5 Anyone who has used the WinInet FTP functions has probably noticed that there are a few handy features that are lacking. In particular, I wanted some code that would: Support the same firewalls as WS-FTP Allow me to execute arbitrary commands on the FTP server Add around 10K to my app install rather […]