I have problems developing applications for non-English

When you load or show a form, errors don

It would often be convenient to store multiple values in the Tag property. Here are two simple functions that help you do that. The first function stores the value in

If you use collections in your apps, you

Only in VB6 do the common controls OCX files provide an option to select a full line in a listview. In earlier versions, you can select a ListItem only by

Here

After trapping an error in debug mode with the usual “On Error Goto ErrorHandlingCode”, you might be frustrated that you can

If you use dates in your program frequently and you want them to be in a particular format, you don

With VB6 came the ability to return arrays from functions. Returning an uninitialized array is a problem because there is no easy way?other than error-trapping?to find whether an array has

A few ActiveX controls, such as the Common Dialog Control, don

If you ever wondered how some DOS applications, such as Norton Utilities, calculate the estimated finishing time for a long process, here

You can employ any DLL

The fast way to get multiple selected items from a ListBox control is to send it a LB_GETSELITEMS window message. Here

Visual Basic

As the user types into a drop-down combo box, he or she passes keystrokes to the ComboIncrementalSearch routine, which then searches the combo box

If you

The VB Integrated Development Environment (IDE) contains many toolbars and menu functions, and the functions you normally use are usually on different toolbars and menus, so most programmers have several

To optimize the If construct, separating testing conditions (“And” operator or “Or” operator) in different expressions can improve the performance. For example, don

To read a binary value from an input file stream (ifstream) object, use the read() member function. read() takes two parameters: char * and long, which hold the address of

It’s a good idea to parenthesize every macro argument. For example: #define MAX(x,y) (x)>(y)?(x):(y) The parentheses ensure that the macro is evaluated correctly, even if the user passes complex expressions

A polymorphic object has one or more virtual functions. When you serialize such an object to a file so that it can be reconstituted later, the deserialization might rewrite its

To write the binary value of a variable to an output file stream (ofstream) object, use the write() member function. write() takes two parameters: const char * and long, which

‘ A class that creates UDL files for use as ADO Data Sources.’ Universal Data link files are handy for select data sources but there’ are lack of a way

To create a drop-down control with a list of used or unused drive letters, place two ComboBox controls on a form, named Combo1 and Combo2, and include this code to

If you don

In an introduction to VB

When running action queries make sure you add the adExecuteNoRecords option, so that a recordset is not created. You can also use this technique in lookup situations when returning just

When using the SSTab control to build a tabbed dialog, I often find the design more pleasing when the OK/Cancel buttons or other controls appear on every tab. It