Have you ever wondered why your ActiveX DLL with a form doesn’t show up in the taskbar? Because you’re showing the form modally (.Show vbModal). VB4 only allows DLLs with

Question: Are there any tools coming with SQL Server 7.0 for this migration from FOCUS 6.0? If not, what is the best way to accomplish this migration? Answer: Yes, DTS

Question: What are business rules in relation to a DBMS. Do you have any posssible examples for a university database? Also: Do you have any hints to drawing a Semantic

Question: I write a statement such as frmStatistics.datStatistics.RecordSource = “SELECT * FROM tblSpecialGroup Where Sex = ‘M’ AND Date BETWEEN ‘” & “051099” & “‘” & ” And ” &

Question: Being new to SQL Server 7.0 I wanted to get other opinions on this: My company has many clients using a proprietary db schema that will replicate transactions to

Question: I’m a beginner VB programmer and am having problems figuring out how to handle events in forms. I have a class that raises an event for each step in

‘ Set a bit in a value” NOTE: requires Power2()Function BitSet(ByVal value As Long, ByVal bit As Long) As Long ‘ simply OR with the bit mask ‘ Range checking

‘ Raise 2 to a power’ the exponent must be in the range [0,31]Function Power2(ByVal exponent As Long) As Long Static res(0 To 31) As Long Dim i As Long

‘ Shift to the right of the specified number of times” NOTE: requires Power2()Function ShiftRight(ByVal value As Long, ByVal times As Long) As Long ‘ we need to create a

‘ Rotate a Long to the right the specified number of times” NOTE: requires Power2()Function RotateRight(ByVal value As Long, ByVal times As Long) As Long Dim i As Long, signBits

‘ Rotate a Long to the left the specified number of times” NOTE: requires Power2()Function RotateLeft(ByVal value As Long, ByVal times As Long) As Long Dim i As Long, signBits

‘ Toggle a bit in a value” NOTE: requires Power2()Function BitToggle(ByVal value As Long, ByVal bit As Long) As Long ‘ simply XOR with the negation of the bit mask

When you write a screen saver in C and SDK you can use a static library (SCRNSAVE.LIB) that allows you to create custom dialogs to change and request the password.

‘ Rotate an Integer to the right the specified number of times” NOTE: requires Power2()Function RotateRightI(ByVal value As Integer, ByVal times As Long) As Integer Dim i As Long, signBits

‘ Rotate an Integer to the left the specified number of times” NOTE: requires Power2()Function RotateLeftI(ByVal value As Integer, ByVal times As Long) As Integer Dim i As Long, signBits

‘ Shift to the left of the specified number of times” NOTE: requires Power2()Function ShiftLeft(ByVal value As Long, ByVal times As Long) As Long ‘ we need to create a

‘ Clear a bit in a value” NOTE: requires Power2()Function BitClear(ByVal value As Long, ByVal bit As Long) As Long ‘ simply AND with the negation of the bit mask

‘ Test the value of a bit” NOTE: requires Power2()Function BitTest(ByVal value As Long, ByVal bit As Long) As Boolean ‘ simply AND with the bit mask ‘ Range checking

It is sometimes useful to be able to obtain a complete list of the components in a container hierarchy. A getComponents() method is provided in the java.awt.Container class, but it

Pausing SQL Server prevents new users from logging in and gives you time to send a message to current users asking them to complete their work and log out before

Pointer-based operations are less frequently needed than they might seem. For instance, examine this class declaration: class PointerMisuse{private: CDC * m_pDeviceContext;public: PointerMisuse(); ~PointerMisuse();};PointerMisuse::PointerMisuse(){ m_pDeviceContext = new CDC;}PointerMisuse::~PointerMisuse(){ delete m_pDeviceContext;} Even

When concatenating a SQL statement such as INSERT, you may have trouble if your field value contains an apostrophe (‘) such as in “Commedia Dell’Arte.” SQL thinks the apostrophe is

CreateInstance creates a COM object that will have context only if its component is registered with Microsoft Transaction Server (MTS). When you create an object using CreateInstance, the new object’s

Although the Visual InterDev 6 Grid design-time control (DTC) is handy for putting tables of data on a Web page, the default format has some unpleasant aspects. For example, the

When creating remote objects for use with Java’s Remote Method Invocation (RMI), you’ll often extend java.rmi.server.UnicastRemoteObject. When you do extend UnicastRemoteObject, it becomes easy for the remote methods to determine

Use sp_procoption to execute a stored procedure automatically at the time of starting SQL server. The stored procedure that needs to be executed should be created in the master database

You should use the Cascading Style Sheets (CSS) visibility property to hide and show absolutely positioned elements. There is no need to use the CSS display property in the case

Many applications use an audible “beep” sound to signal that an error has occurred or to get the user’s attention for some reason. For example, a user interface that allows

There are various forms of friend declarations within a class template: a non-template friend, a specialized template friend, and a class template friend. A function template can also be declared

In C, it is valid to assign integers to an enumerated type. For example: /*** valid in C but not C++ ***/enum Status {good, bad};void func(){ Status stat = 1;