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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

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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

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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

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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

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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

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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

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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

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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

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Access 2.0 Requirements

Question: I have heard a vicious rumour going round that any programs I write in VB 3.0 using Access 2.0 will only be able to run on computers that have

DevX - Software Development Resource

Formatting a Disk

Question: How do I issue a disk format command from myVB code? Do I simply shell to DOS? Answer: That’s what I would recommend. Format is a .COM file, so

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Adding Leading Zeroes

Question: A control record value for next_order_num will contain the value “00009998” when you first get the control record file. Each time you write the next_order_num field back into the

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Type Declarations

Question: I define a user-defined type as follow..Type Complex Re As Double Im As DoubleEnd TypeI created a function like this…Function CompAdd( a As Complex, b As Complex ) As

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Dynamically Generating Variable Names

Question: I have a number of objects, say shapes, which I have named s1, s2 , s3, s4 , s5.I would like to refer to the shapes fillcolor property witha

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One Large Program vs. Several Small Programs

Question: We have 4 good size programs, and we are considering consolidated theminto 1 single program. Combined, these 4 programs would have about 60 forms and a total of 500

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Buffer Return Problems

Question: I am feeling very sick and was wondering if you could help me. I am trying to access the Lan Manager 2.1 API and am having difficulty get return

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Saving Forms as Text vs. Binary

Question: This may seem a stupid question, but I cannot figure or find it out anywhere… I have been having trouble with the setup wizard saying that my forms have

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Using the WITH Operator

Question: This code is in pascal how can i implement it in VB ? with treasuremap do move Answer: VB 3 does not support the With operator. (version 4 does,

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Searching for Apostrophes

Question: When using VB4 and the Jet Engine with Access 2.0, I do I execute an SQL query that searches for a string that contains the apostrophe ? Answer: If

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Opening and Reading a File

Question: Can you please send me the code to open a file using the common dialog box – not just the code to open the dialog box but to actually

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Moving Controls on Screen

Question: I was wondering how you can move pictures and controls from one end of a screen (that part I know) and then have it go back or down? Answer:

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Displaying Help

Question: How do you use the Common Dialog Box help. When I set all of the parameters and tried it, it didn’t display my helpfile. Answer: Did you set the

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Selecting File from File List Box

Question: I put a drive box, a directory list box, and a file list box on the form, with the intention of being able to select an *.ico file from

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Entering Large Amounts of Text

Question: I have a problem with writing text in Visual Basic. I would like to enter several hundred pages of text into my program, Any ideas of how to do

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Opening MAK Files with VB 4.0

Question: In working with VB4 I find that if I double click on a project file (.mak or .vbj) the system always starts upVB4 in 16bit mode. I am wondering