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DevX

JPEG and GIF — which to use, and when?

Question: The graphics on my Web pages are all now in GIF format. Someone told me that I should convert all these GIFs over to JPEG format, because it is

DevX

Using interlaced GIFs as buttons in a form

Question: I want to create ‘back’ and ‘exit’ buttons that look the same as the’submit’ and ‘reset’ buttons that are in the &#060FORMS&#062 commands,and place them all together in a

DevX

How can I implement a counter on my page?

Question: How can I implement a counter on my page, like the oneyou use, to show how many visitors have been to my site? Answer: The most common way to

DevX

Support for Unicode Consortium

Question: Does Centura support the Unicode consortium? Is there a way to use it with Centura Web Developer? And with SQLWindows 5.0.X? Answer: First, find out what your Unicode requirements

DevX

Disconnecting Process with SQLConsole

Question: I’m running SQLBase Server 5.2.1-PTF8 for Windows NT, and I’m running SQLConsole 1.0.2 on a Workgroups 3.11 client. All clients are WFW3.11 and communicate with the server via TCP/IP.

DevX

Opening a Password Protected Access Database

Question: I am developing an application in VB 4.0 connecting to an Access 7.0Database. I do not want to set up database security with groups, users andpasswords. All I want

DevX

Common Dialog – folder selection?

Question: In Word 7.0, under Tools, Options, File Locations tab, there is a dialog that comes up to define the folder containing certain types of files. This dialog allows folder

DevX

Finding Corresponding EndIf

Question: I’ve got ten pages of code and there’s an “If” on the first page, a bunch of “If…EndIf” statements throughout the code and the “EndIf” that corresponds with the

DevX

Adding a new record in a VB 4.0 database

Question: When I use my add record button on my form I get blank fields, like I should. However, after I add the new info and move to a different

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Calculating time intervals

Question: How does one calculate time differences. I know there’s a function to calculate date differences.I am coding a database program which includes calculating the difference between a start time

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Scanning Multiple Levels of a Directory

Question: I have been trying to right a routine to recurs sub directories and scan for files. Then the light came on!!! What is the call to the windows API

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Passing variables from forms to forms

Question: Would you please tell me how to pass variables from forms to forms? Is that we can use the Tabs in general or use pass by reference? Thanks! Answer:

DevX

Apparent Performance Problems

Question: Could you tell me why this takes a 150MHz Pentium with 64MB of RAM just to run fast enough to catch MCI time output? Private Sub Rply_Timer_Run()Dim ReplayTime As

DevX

POP3 E-mail notifier using Winsock

Question: What parameters I need to query a finger server to check if new POP3 e-mail has arrived ?Finger is commonly used for getting connected users information (sending a blank

DevX

Sensitive maps

Question: I would like to change SRC picture of thesensitive map, onClick on some area of same picture.With JavaScript it works that if instead ofHREF =”some.URL” on imagespot you just

DevX

Javascript Output

Question: How do you write javascript output to a file on the server and then retrieve it later? Answer: Unfortunately, like VBScript, JavaScript cannot write to files on yourserver or

DevX

SqlWindows: OLE Automation Server or Client

Question: Is SqlWindows an OLE Automation Server or is it only an OLE client? Answer: SQLWindows (and Centura Team Developer), in its current incarnation, is an OLE automation CLIENT. That

DevX

Grouping Multiple Commits

Question: I’ve heard about a configuration keyword for SQLBase that groups multiple COMMITs together. Does this keyword exist, and under whatconditions would it be useful? Answer: Yes. The keyword “groupcommit”

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Result Sets Are Not Active Error

Question: My SQLWindows app, which has been deployed for several months now, has started giving error 163 (“Result sets are not active”) messages. Is this caused by a bug somewhere

DevX

Inheritance

Question: Is it possible for a class to inherit from another class? Answer: Unfortunately, VB does not currently support class inheritance. However, using a tool like ClassAction from Crescent or