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This article illustrates how to programmatically embed OLE objects into Microsoft Access database. 1. Write the header 2. Write the name GetUserType( USERCLASSTYPE_SHORT ) 3. Write the class ProgIDFromCLSID 4. Write the storage OleConvertIStorageToOLESTREAM One remaining item is that before Access actually writes out the storage, it adds a stream to it that contains information […]

Many times it is neccessary to access databases without knowing the scheme of the database at design time. Think that you are developing an application that supports ISE (Incremental Search and Edit) for a certain purpose. The application reads a column of a database table to determine if there is any match to the letters […]

I have to use 2 different Source Code Controls: Microsoft Visual Source Safe and Rational ClearCase. Both of them provide a nice integration with the Microsoft Visual Studio IDE, so that I can checkout/checkin files while editing them. Unfortunately, Visual Studio does not prompt you for the SCC to use (at least, I could find […]

(http://come.to/itay). Environment: Visual C++ 6, Windows NT and Windows 9x This add-in adds an auto-save feature to Visual Studio. When invoked, a dialog box is opened in which the user can set a periodic save interval, and enable/disable automatic saving. Setup Copy AutoSave.dll to any place you want. A good place would be under the […]

This article was contributed by chensu. Environment: Visual C++ 6.0 with Service Pack 3, Windows 9x and Windows NT 4.0 with Service Pack 3 Here is a complete screen saver framework. It is based on the MFC sample “SAVER: Screen Saver” that comes with Visual C++. But I added more functionality so that it does […]

As far as I can see, there is no API function to do what I want so I have written one. What GetRelativeFilename does is to take a base directory and an absolute filename and return a relative filename. For example: Base Directory: c:foobar Filename: c:foobarmyfile.txt Relative name: myfile.txt Base Directory: c:foobar Filename: c:foomyfile.txt Relative […]

I’ve seen a few articles that illustrate different techniques used in order to display an ellipses in the path. However, a simpler approach might be to use the new Shell path function: PathCompactPath. BOOL PathCompactPath( HDC hDC, LPTSTR lpszPath, UINT dx ); This function truncates a file path to fit within a given pixel width […]

Environment: VC6 NT4 IE 4,5 This article covers the basics of selecting a client certificate for use within WinInet. I have put this text together, in the hope it may prevent others suffering the hair loss I have during the last week. First of all I am assuming you know the basics of setting up […]

Environment: NT4 SP5 How to set local machine IP addresses from your program ? Follow this steps 1. Open registry on the HKEY_LOCAL_MACHINE 2. Find the subKey = SOFTWAREMicrosoftWindows NTCurrentVersionNetworkCardsnetcard# netcard# usually is “1” but you can control any subkey and find specific netwrok Adapters Refer to “MSDN Registry Entries for Network Adapter Cards” 3. […]

MFC allows you to easily add status bars to CFrameWnd-derived windows. However, if you want to add a status bar to a dialog, you’re going to find the going just a bit more difficult. Basically, it turned out that I had to dig very deep into the MFC documentation in order to find anything to […]

Environment:Visual C++ 5, Windows NT 4 (SP3) What is it I’m using MS Jet database engine (mdb files) delivered with VC to store data of my application. I was missing the possibility of executing SQL scripts on this engine. I prefer to define the structure of the database with a SQL script so I created […]

I wrote this class when I wanted to add syntax highlighting to a utility that I was writing. I had tried the syntax highlighting classes already available from CodeGuru and found each one lacking in some way for the application that I was writing (I was doing some really odd stuff to get it to […]