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Question: I have built an executable file and included a READ EVENTS command. After running the .exe, I am unable to quit VFP. The message I get reads: “Cannot quit
Question: I’m trying to install on a Secondary Domain Controller. After I enter the password for the user, Informix shows a message saying “You do not appear to be an
Question: I am using Windows 2000 and ADO 2.5 with VB6.0 and I am retrieving a datetime field from an Informix database 7.3. The field contains time only. When the
Question: I found out about a software suite around eight months ago that would allow me to mirror my production server on the fly and that would make the mirror
Question: One of my customers is a small, but worldwide company. They use Exchange 5.5 on a server in the US to provide e-mail to all locations in the world.
Question: I created a simple SQL statement to update one row of a table in a transaction. I then updated a different row in the same table while this transaction
Question: I am outputting a report that contains more fields than will fit on a single sheet. The process has to be done as three separate reports: Report 1 –
Question: Which is better to use for inserting or updating a record: Recordset object or Command object? Answer: When using an Action Query (a query that performs an action and
Question: I read an article about how to search a database upon the criteria provided by users. In the example, you showed how to use a drop down menu (combo
Question: Given that NTCR is only good in a network environment, how can I redirect a user back to a login page (or trap something) if I pass their username
The following code (based on the UTL_SMTP package supplied in Oracle8i V8.1.6, release 2) enables you to receive e-mails from the database, reporting a correct ending backup, a corrupted backup,
Question: How do I define an external table (that is not in my current database) in Informix and access the data in it? Answer: If you’re connecting to an external
Question: If I have the number of a given week of a year, how can I get the date of the first day of that week? For example, I want
Private Declare Function InternetGetCookie Lib “wininet.dll” Alias _ “InternetGetCookieA” (ByVal lpszUrlName As String, _ ByVal lpszCookieName As String, ByVal lpszCookieData As String, _ lpdwSize As Long) As Boolean’ Get locally-stored
This is a simple string manipulation functionality that is often required.It converts the input string into a proper string (eg., “how are you doing?” will return “How Are You Doing?”).
You can use to activate Intellisense to prompt you forvariables/methods/properties/events at any point in a code window. For example:If you have a variable named myvariable, typing myv and then doing
Question: Could you please explain what the significance of string::npos is in the statement? someString.find_first_not_of(“0123456789”)==string::npos Answer: string::npos is a constant integer that holds the maximum value of characters that a
Question: I am collecting a number of function pointers in C++ and before I call them I want to check to see if they have been set. I really want
Question: Can you to tell me how to use a variable in other VB projects; i.e.,how to use some variable in two EXE-compiled VB projects? Answer: Because of the way
The MB ActiveLink Control is a label-type control that the end user can click to jump to the specified web URL, Email address or document, or open the associated application.
was studying the excellent Francesco Balena book, “ProgrammingVisual Basic 6.0,” edited by Microsoft Press, the cost of which iswidely compensated by both the book and the enclosed CD contents—:when Iran
Both C and C++ allow you to return by value aggregates, e.g., structs and unions, from a function. However, the runtime overhead of returning large objects by value can be
In many applications, you need a generic class that invokes callback functions regardless of their class type. For example, an even-driven system that needs to call a member function of
Here’s a common error: you define a class-internal type, say an enum or typedef, and then try to use it as the return type of that class’s member function: class
The standard functions isalpha(), isdigit(), isprint() etc., defined in the standard header or often fail to produce the right results because they assume that their arguments are of type ‘unsigned
The .* and ->* operators enable you to call a member function without having to know the function’s name. Remember, however, that when using these operators, you have to parenthesize
Most of the Java books talk about double buffering for removing theflashing. It solves the problem to some extent but not 100% perfect in caseof flashing. I am giving the
This is a useful tip if you are using SQL Server as your database and Accessas your front-end application. Use the following code to dynamically change theAccess passthrough query definition,
Question: I have an Exchange 5.5 installation on a Windows 2000 box with SP3, and I want to move approximately 1,500 mailboxes there from am Exchange 5.5 SP2 box on
Question: My users are able to go to File > Open > Other User’s Folder and view anyone’s mail. What am I missing? I thought this was a simple setting











