Question: I created my own map class (called it Mapper) by creating a template class and deriving from STL map container class. I did so because I wanted to have

Question: In order to have better maintainability and optimum performance, how many levels of inheritance do you recommend ? Answer: Performance is not affected by the depth of inheritance. The

Question: I see search pages that allow text input, then pressing the ENTER key is the same as pressing a link or pushbutton. How is this done? Answer: If a

You should not use query strings when you are passing hidden information and when you are passing large chunks of data. A query string is not hidden in any way

‘ Return a collection with all hidden types of a type library” VB’s Object Browser hides some types in a type library:’ you can show these types by right clicking

‘ return a collection with names of all the class names’ of a type library that implement a certain member.” MEMBERNAME is the name of the property or method’ MEMBERTYPE

‘ Returns a bit-coded value that specifies the type of’ an object’s member (property, method, event)’ or zero if the member isn’t there’ Object is the object which you want

‘ Return all classes of the type library specified in’ TypeLibFile parameter that support a certain interface.’ the interface can be specified as an Object or through its IID’ Be

‘ Return a collection with all creatable classes of’ the type library specified in TypeLibFile.” Set IncludeNotCreatableClasses = True to include not creatable classes’ (that is, those with Instancing property

‘ Return the GUID of the object specified in the first parameter’ Be sure that “TypeLib Information” type library (TlbInf32.tlb)’ is referenced in your VB project.Function GetObjectGUID(Object As Object) As

‘ Return the DispID of a procedure’ ProcName must be set to a procedure name of the object’ specified in the second parameter.’ Be sure that “TypeLib Information” type library

A scrolling DIV is a great way to display a large amount of data without resorting to frames. Setting the CSS-2 OVERFLOW property to auto will make the DIV into

Every source file in Java (.java file) contains one class. You can bundle a set of related classes into a package. Java provides “import” keyword, which is used to establish

In Windows Common controls, we have an UpDown control. It can be attached toany textbox. It gives the user the appearance that he or she can control (increment or decrement)

Sometimes in our database structures we’ve got to store information in such a way that it allows us to increase/decrease the type of data we store. For example, we have

Here is the code ready to use and written in C, to create a JDK 1.1 Java Virtual Machine. #include int main() { JDK1.1InitArgs data; JNIEnv *env; JavaVM *jvm; jclass

When a SubQuery is used in a FROM clause instead of a Table name, Oracle executesthe subquery and then uses the resulting rows as a view in the FROMclause. It’s

When querying in Oracle, use ROWNUM pseudocolumn to limit the number of returned rows. Pseudocolumns behave like table columns but are not actually stored in tables. (Other pseudocolumns are RowId,

I read a SQL tip titled “Using Distributed Queries on SQL Server 7.0.” I think this is a great follow up to that tip. This is especially useful for those

When validating a set of sequential steps, the Select Case structure can beused to step through each validation method. As each Case is cycledthrough, the validation method is called to

I needed to retrieve image fields on SQL Server 7.0 with VB6, and I couldn’t find any article about it. So, I assume others have had the same problem. I’ve

Question: We’re trying to: Get the Logon Windows NT id for an Exchange mail box Get the Security Identifier (SID) corresponding to the Windows NT id (using advapi32.dll api’s) Map

Question: I have developed a WAP application using the Nokia SDK, and all appears well. Our project team leader uses the emulator from phone.com and it does not display the

MDI forms do not allow you to remove the Min/Normal-Max/X or Control Box.Many times you want the MDI Form to remain in the Maximized state. One way to accomplish this

Question: Our company uses NetFolders to share the company calendar, which has extensive listings. We are about to install Exchange 5.5. What’s the best way to move the calendar intact

You can easily create ActiveX controls that work as containers for other controls, by setting their ControlContainer property to True. However, VB doesn’t offer any event for detecting when the

Question: I am using Windows 2000 and would like to access the IRDA port in raw mode. That is, not use the Winsock API but instead just send serial data.

Question: We have a Web-enabled application running. The ASP has been written to generate a WML/HTML response. This has been tested using a simulator from Phone.com. What should I do