ave you ever wanted to add interactive sound and backing music to a Web site but were unable to use Flash because you didn’t require any visual presentation? Now there’s
If you want to stop a user from accessing your website, you can do it by using some relatively simple code. First, you must know the IP address of the
To make this script work, browsers should be javascript enabled.1) To Make TextBox Readonly:
This feature will be required if you want to store exceptions in a database: import java.io.*;public class Test{ public static void main(String args[]) { String trace = exceptionToString(new Exception(A new
The garbage collector works automatically, whether you request it to or not. However, it is possible to make a garbage collector request, by invoking the System.gc() method. When garbage collector
When working with pages, the database is not always available. Sometimes, you need to access a test recordset. Here are is an example of how to create a function that
While definitely not required, overriding the toString() method in your classes will make their use much easier. Although java.land.Object provides basic implementation for this method, it is far from being
The library defines the following open modes and file attributes: ios::app // appendios::ate // open and seek to file’s endios::binary // binary mode I/O (as opposed to text mode)ios::in //
Certain files need to be emptied every time an application opens them before it writes new data to them, for example, a per-session log file. One way to achieve this
The keywords struct and class are almost interchangeable in C++. You can declare a struct that has member functions, constructors, destructor, base classes and so on as if it were
Some programmers consistently define an empty constructor and destructor in their classes, as in: class A{//..public: A() {} ~A() {}}; This is totally useless. C++ guarantees that when a class
Following yesterday’s tip, here’s another deprecated habit that programmers should avoid. Consider the following class hierarchy: class base{public: base();};class derived: public base{public: derived() : base() {/*some code*/} // superfluous}; The
Listboxes provide suitable functionality to act as a quick queue. Create a listbox named ListMyQueue. Use this code to add to your Queue: Public Sub Enqueue(StringToAdd As String)If Len(String_to_Add) >
User-defined types are useful when you need to store structured data that has no specific behavior. If you have associated behavior, you should encapsulate the data in its own class.
Sometimes you might want an MDI form without any captions or buttons, such as in a game or acting as a background parent object. You can create a captionless MDI
Enumerated constants are great, but they have a quirk that Related Posts 8 Misconceptions About Software Development ProcessCA Acquires BlazeMeterNetflix Releases Falcor Open Source JavaScript ToolAmazon Launches New Cloud Computing Services
When you need to determine the last occurrence of a character within a larger string, you typically use a Mid$ or Instr in a loop. VB6 Related Posts HP Says
Creating a new project in VB6 (and earlier versions) has always been a pain when you have a large library of modules to add in. You can do it a
Win32 file images can contain a file version resource that stores product and version information about the file. The version num-ber is actually four 16-bit values typically displayed using dot
n the last several years, I have built and expanded my career based on my knowledge of Microsoft SQL Server. I’ve used the product as both a database developer and
ogging in and querying an Oracle database can be a daunting task for anyone used to SQL Server. Instead of the familiar Query Analyzer tool (see Figure 1), which provides
atabase programs, with few exceptions, need to utilize both the computer’s memory and permanent storage space such as the hard drive to operate. The drives provide both long-term storage and
oth Oracle9i and SQL Server 2000 support the use of the database as more than a simple data store for your information. They enable you to use the database to
This add-in adds a tool-window to your VB IDE. Initially, mousecam will be off. Start it with the on/off button. The initial snapshot interval is 100 ms. You can change
‘ Converts a time value to a numeric value in seconds’ Example:’ MsgBox TimeToSeconds(TimeSerial(3, 5, 20)) –> 11120Function TimeToSeconds(ByVal newTime As Date) As Long TimeToSeconds = Hour(newTime) * 3600 +
Enum DateTimeFormat dtGeneralDate dtLongDate dtMediumDate dtShortDate dtLongTime dtMediumTime dtShortTime dtCustomEnd Enum’ Enhanced VB FormatDateTime functionFunction FormatDateTimeEx(newDate, Optional ByVal dtFormat As DateTimeFormat = _ dtGeneralDate, Optional FirstDayOfWeek As VbDayOfWeek = vbSunday,
‘ Converts a numeric value in seconds to a string’ Example:’ MsgBox SecondsToString(3920) –> 1h.5m.20sFunction SecondsToString(ByVal Seconds As Long) As String SecondsToString = (Seconds 3600) & “h.” & ((Seconds 60)
‘ Converts a time value to a numeric value in minutes’ Example:’ MsgBox TimeToMinutes(TimeSerial(3, 5, 0)) –> 185Function TimeToMinutes(ByVal newTime As Date) As Long TimeToMinutes = Hour(newTime) * 60 +
‘ Converts a numeric value in seconds to a time value’ Example:’ MsgBox SecondsToTime(11120) –> 3.5.20 AMFunction SecondsToTime(ByVal Seconds As Long) As Date SecondsToTime = CDate(Seconds / 86400) End Function
Private Declare Function GetSystemPowerStatus Lib “kernel32” _ (lpSystemPowerStatus As SYSTEM_POWER_STATUS) As LongPrivate Type SYSTEM_POWER_STATUS ACLineStatus As Byte BatteryFlag As Byte BatteryLifePercent As Byte Reserved1 As Byte BatteryLifeTime As Long BatteryFullLifeTime