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DevX - Software Development Resource

Simulating Buttons

Question: I would like to make a row (in a frame) of command buttons that could light up when depressed. And also have some small round buttons (like option buttons)

DevX - Software Development Resource

Memory Management: Lost Resources

Question: Each time I run a certain application from VB environment, resources go lower and lower. When I exit VB, all the memory is released.I do not have that problem

DevX - Software Development Resource

Dynamically Creating Controls

Question: I am a teacher (this explains my lack of expertise at understanding many VB technicalitiesin manuals etc.) experimenting with creating bits and pieces of software for children with learning

DevX - Software Development Resource

Executing DOS Commands

Question: How can I run the following “SHELL” command in VB? It works fine in PowerBasic, but VB 3.0 doesn’t like it.SHELL “DIR *.BKP > FILES.LST”Any ideas? Answer: Try this:Shell

DevX - Software Development Resource

Handling Dependent Processes

Question: I need execute some commands to rename/copy files. What is the best method of performing this type of function.I do not want to fire off a batch file, but

DevX - Software Development Resource

Screen Saver Development

Question: What all do I need to know to create a screen saver in Visual Basic? Answer: Windows screensavers are easy and fun to write in Visual Basic, but there

DevX - Software Development Resource

Object Was Unloaded Error

Question: When I try to unload some forms with database controls on them while in the Form_Load event, VB tries to show the form again and issues the statement ‘Object

DevX - Software Development Resource

Grids with Spanning Columns

Question: I need a way to make a grid/table that would support headers and cell data spanning multiple rows as wellas multiple columns. Any ideas? Answer: VideoSoft has a product

DevX - Software Development Resource

Limiting Size of Popup Windows

Question: How do you limit the size of a help file definition window? When I program a pop-up window for a definition, its as big as the main Help window

DevX - Software Development Resource

Accessing a DBGrid Cell

Question: How can get the Text contained in a specified Cell in DBGrid? Answer: If you set the Row and Col properties first, you can then look at the “Text”

DevX - Software Development Resource

Changing Default Title on Window

Question: I made a copy of a project for a new application. The problem is that each time a message box is displayed it has the old project name as

DevX - Software Development Resource

Getting Available Disk Space

Question: I am looking for a way to determine the numberof bytes on a hard drive. Preferable I’d liketo know the total bytes on a drive and the bytes used

DevX - Software Development Resource

Dynamically Positioning Controls at Runtime

Question: It is easy to use control arrays to load controls inside a container. Now the problem is I do not know how many containers e.g., groups of option buttions,

DevX - Software Development Resource

Centering a Form on the Screen

Question: How do I center a form on the monitor regardless of monitor resolution? Answer: The Screen object contains the properties of the current display. In the Form_Load event, you

DevX - Software Development Resource

Right-Justifying Output

Question: My VB program produces as output, paper reports such as Income Statements and Balance Sheets. How do we get the numbers to print as they should, that is, dollars

DevX - Software Development Resource

Getting Started

Question: We have a big complete hospital system written in ClipperWe had looked at VO, but that does not seem to be the way to goWe will now concentrate on

DevX - Software Development Resource

Creating Delays

Question: Can you suggest ways to delay sending keystrokes to the external application? I’ve tried inserting ‘For-Next’ loops of different durations but without success. Answer: Try a timer control. That

DevX - Software Development Resource

RecordCount Incorrect

Question: VB reports the wrong number of records from an Access database with the RecordCount property. The same query to dBase files reports the correct number of records. What is

DevX - Software Development Resource

Converting 4.0 Files to 3.0 Format

Question: I use version 4.0 and the school I go to uses version 3.0. I use windows 95 and they use windows 3.1. I know you can convert a 3.0

DevX - Software Development Resource

Creating Help Files for VB

Question: I am new to Visual Basic and wanted to know how to write those nifty little help files. Answer: Help files are fairly easy to create. All you need

DevX - Software Development Resource

Masked Edit Control: Clearing the Text

Question: Could you tell me how to clear a MaskEdit Field? Answer: To clear a masked edit field’s text, you first have to set the mask to “”, then set

DevX - Software Development Resource

Creating Simple Animation

Question: How do I get four simple .bmp pictures to animate?Could you maybe give me an example? What the picturesare is a green scare then it would turn into a

DevX - Software Development Resource

Finding User Directory for Microsoft Mail

Question: I’m in the process of refining a program I wrote. What I need to do is find the user’s mail directory on a Network server. To do this, the

DevX - Software Development Resource

Unload vs. Hide

Question: My application makes use of different forms.I call forms by ‘hide’ the current form and ‘show 1’ to showthe next one.When I want to return to the previous form

DevX - Software Development Resource

Saving Information

Question: How do you save information?Say a made a game, and i wanted high scores, how do I want to do that? Answer: You could do it a number of

DevX - Software Development Resource

Creating 2 Dimensional Array

Question: I am trying to design a telephone directory and am unable to set the 2 dimensional arrayas an unknown number. How do I do this? Answer: The best way

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Declaring Form Objects

Question: If i declare a new form as an object variable,Dim NewForm as Formset NewForm=form2NewForm.ShowOnce I have a one of those forms, how do refer to that particularinstance of the

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Removing Filename Reference

Question: I have a form containing a Picture Box control.This control currently contains a bitmap i.e. the pictureproperty contains a filename. How do I change the picture property back to

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Oracle via ODBC

Question: I am using Visual Basic as my front-end tool to read an oracle 7 database residing on an oracle network. I have completed the connection stage. I am using