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Const HKEY_LOCAL_MACHINE = &H80000002′ Return information about an ODBC driver” The 1st argument must be an ODBC driver name,’ as returned by the GetODBCDrivers function’ Not all drivers return the
Const HKEY_LOCAL_MACHINE = &H80000002′ Return the number of processors” Requires the CheckRegistryKey routineFunction GetNumberOfCPUs() As Integer Dim keyName As String ‘ loop on the subkeys of HKEY_LOCAL_MACHINEHardwareDescriptionSystem ‘ CentralProcessor ‘
Const HKEY_LOCAL_MACHINE = &H80000002′ read the value of a setting for the VB IDE from the Registry’ Important: only works with VB6” Possible values for SettingName are’ AlignToGrid (returns 0/1)’
While the DIV element can be used to designate block-level elements such as paragraphs and list items, SPAN is used within a block. And while most browsers will insert a
Using the frame’s location object, you can load a number of different files into a frame at runtime. As you do when building any project using frames, first build a
Avoid putting double quotes inside of double quotes in your HTML code. You may not get a compiler error, but your script just won’t work. Instead, substitute single quotes for
We can pass variables from page to page with the following script: This snippet of ASP script will also automatically create hidden fields that will be dumped into all following
If you’re writing complex frame sets by hand, it’s easy to get lost in “spaghetti code.” To keep a handle on the situation, don’t build the entire frame set at
JavaScript does not have a built-in function for formatting floating-point numbers. However, it’s easy to create one using JavaScript’s String methods. For example: function format(expr, decplaces) { // Convert the
There are some differences in Cascading Style Sheet implementation in Internet Explorer 3 and 4. So you may want to choose which set of style sheets to load for your
Using the BrowserType object, your ASP pages can detect the type of browser being used to download the page. In addition, you can also test the browser for specific capabilities.
The following code can be used in the tag of an HTML document for automatic mouseover effects on all links on the page. The styles ‘a’ and ‘a:visited’ are used
Question: How can I use SQL to access an Informix database that’s on a remote site and connected via a VPN while connected to an Informix database locally? Both are
ServerVariables’ collection of request objects provides vital information about the client browser, HTTP header, etc. During the development of a web application, we use various variables of this collection to
Both IE and Navigator let you specify different background colors in table cells. However, IE ups the ante by supporting tiled background images in different cells or even behind an
The default setting for ScriptTimeout is 90 seconds. For IIS 3.0, it is located in the system registry where we can easily change it to another value. It is advisable
JavaScript provides a special keyword, “this”, which is a reference to the object that contains a JavaScript statement or function call. For example, if we have a text box object,
If you use frames in your page, it’s easy enough to create a link that updates one of them. But what do you do when you need to update two
We can use the following JavaScript code to get a confirmation from the user before navigating to another page. Redirect
We can associate a shortcut key to give focus to an tag as follows: Name: The letter “N” will be underlined, which gives a visual cue that N is the
Question: Is it possible to delete duplicate rows in a table without using a temporary table (i.e., just do it with a single SQL statement)? Answer: All you need to
The XMLHttpRequest object provides client-side protocol support for communication with HTTP servers. A client computer can use the XMLHttpRequest object (Microsoft.XMLHTTP) to send an HTTP request, to receive the response,
I often use the following trick in my code. Let “a” and “b” be real positive numbers. You want to find the smallest integer greater than or equal to “a/b”.
Question: When I implemented a pull-down menu, it wiped out the default, anchoring color schemes. When I changed the pull-down menu to blue text, my anchored text showed blue again.
Question: When I press the right mouse click, I’d like to have a custom menu pop up instead of the usual default browser pop-up. How can I do this with
Question: I’m loading news links from our companies’ database to our home page using the tag. However, when a user clicks on one of these links, the news item appears
Question: Is there a way to read the contents of a directory into a table so that the contents of each cell of the table becomes a link? Answer: This
Question: I’m using ASP to register data in a DBF table through a SQL statement. I get data from a form (textarea) in an HTML page. However, the SQL statement
Question: My app. name contains the char “> “: myapp>name Of course, this creates huge problems. How do I get past this in HTML, when displaying or referencing the app.
If you have light menu pages but heavy graphics on pages deeper into the site, sneak a graphic or two into the user’s cache while someone is reading your home











