CodeGuru Staff

Environment: Any flavour of MFC (Doc/View) including VC6, VC7, and Embedded Visual C++ Sometimes you have an SDI-based project and you do not want to be restricted to a single view (single template). In this article, a piece of code will be presented that will let you change your view of your SDI project dynamically […]

Environment: COM, DCOM, COM+ Introduction This module is designed to solve the old problem of directory replication. In fact, we want to put a resource (file or directory) on a server machine and obtain the same structure of directory on the client machine that was advising to the server. This fact happens automatically and instantly. […]

Environment: Visual C++ 6.0 with Service Pack 3, Windows 9x, Windows NT 4.0 with Service Pack 6a and Windows 2000 This sample is an MFC application using the document/view architecture that can load, display, and print graphics files such aske GIF, JPEG, BMP (bitmap), ICO (icon), WMF (metafile), and EMF (Win32-enhanced metafile). It shows: how […]

Mark Strawmyer Presents: .NET Nuts & Bolts

By Anand Narayanaswamy In this article, we will examine the concept behind Structures, Enumerations, and Inheritance in C# with the help of relevant examples. In the end, you will also learn about Abstract Classes in C#. Structures Structures are basically value types. They are defined by using the struct keyword. You can access the variables […]

Environment: .NET If and when you start working with .NET, you will find that the applications you create are not quite the same as the ones you created previously. While you can still create a file with a DLL or EXE, the resulting files are not the same as previous DLLs and EXEs. In simple […]

Environment: You probably know what a class constructor in C++ is. Then you have used the functionality of virtual functions. Why? Class constructors realize many things that are out of sight for the programmer, such as initializing the class methods, attributes, base virtual pointers (vbptr), and virtual function pointers (vfptr), making inline methods and some […]

       Environment: CBitmapPicture is derived from CBitmap. It allows the user to load jpg, gif, bmp, and dib formats from a file or from the resouce and store them as a CBitmap object. Public Operations Load from file given supplied path BOOL Load(CString sFilePathName); Load from resouce; give ResourceName and Type BOOL Load(UINT ResourceName, CString […]

Environment: VC6, NT4 Introduction The CArrayBITMAP class stores a Windows bitmap and provides member functions to manipulate the bitmap’s array. Bitmaps are stored in an array with elements such as a BITMAP structure. This class is recommended for temporary image storage. Bitmaps may be any standard type and size. The quantity of kept images is […]

by Jeff Prosise of Wintellect The surest way to write a sluggish Web application is to perform file or database accesses on every request. Every developer knows that reading and writing memory is orders of magnitude faster than reading and writing files and databases. Yet it’s surprising how many of the same developers build ASP […]

Environment: Windows NT/2K/XP, MSVC 6 While the Microsoft Win32 API provides functions for dealing with waitable timer objects that provide clients with very high resolution (100 nSec.), it gives no guarantee as to the actual precision of those timers. Because those timers rely solely on the APC mechanism to deliver notification to the timer callbacks […]

Environment: C/C++ The odd thing about COM, C++, and C… Like most average people, I talk about COM, use COM, and program COM without knowing what it is—until I decided to go back and see what it is. If you have the same curiosity, join me for some fun. For years, I’ve known that if […]