Free VB Tips

Printers - A Practical Buyers Guide - 1

2010-10-15T12:58:00.000+07:00

Autosummarize from article “Printers - A Practical Buyers Guide” by Iggy Quazi

Printers have also become specialised for their intended purpose.It is no longer a case of "a printer is a printer".

Inkjet Technology

Inkjet printers form images by spraying tiny droplets of liquid ink onto paper. A quality inkjet printer can produce very near photo-quality images using specialist photo coated paper. Inkjet ink is specially formulated for specific printer models and their purpose, much technology is involved in the development of these inks to improve print quality, longevity, drying speeds and printing speeds etc. Inkjet printers use anything between two and eight ink cartridges to do their job. Inkjet printers are the best solution for most people and are usually the most cost effective way to print - unless you are printing large volumes.

Portable Inkjet Printers

These printers are small, lightweight and ideal for people on the move. Although the printing of high quality photographs is usually beyond this type of printer, basic colour printing is of good quality and the quality of text print is mostly outstanding considering the size of these tiny portable A4 printers. These printers are not suitable for high volume printing.

Inkjet Printers

The Inkjet Printer is the most commonly used type of printer among home and small business users. With excellent all round printing capabilities, from black & white text print and good colour prints through to very hi-resolution, high quality photographs using Inkjet Photo Printers. Multi-Function Inkjet Printers

8 Basic Steps to Create a Program in Visual Basic

2010-04-13T01:18:00.004+07:00

Visual Basic is one of even-driven programming. Creating an even-driven programs like Visual Basic requires different approach from that used in procedural languages. The approach may seem unusual, if you are experienced with procedural programming.

Here are 8 basic steps in creating an application with Visual Basic:

1. Create a Design Plan

2. Create the user interface

3. Set the properties of interface objects

4. Write code for events

5. Save the project

6. Test and debug the application

7. Make an executable file (by compiling it)

8. Create a setup application

How to Name Objects in VB6 Programming ?

2010-04-09T20:33:00.009+07:00

When an object is created, a default name based on its object typed will be given to the object. For example Form1 will be given to object/control with type Form, Text2, Text3,... will be given to Textbox object, Command1, Command2,.... will be given to command button object. You should immediately change the name property of the object to a name that describes the purpose of the control. Changing the Name property of your object with a name that describe the purpose with the object will make the code in your application easier to read and debug.

Visual Basic has several Standard Naming Convensions. Although you can assign any name you want to an object, but it is a better to adopt a naming convension and use it ocnsistently throughout your programms. Because it will make easier for others to understand your code.

Here it is a list of Standard Naming Convensions used in Visual Basic that assign to each type object:

Object type: Check box
The prefix you should use: chk
Example name: chkDrink

Object type: Combo box
The prefix you should use: cbo
Example name: cboStore

Object type: Command button
The prefix you should use: cmd
Example name: cmdSelect

Object type: Data
The prefix you should use: dat
Example name: datSales

Object type: Directory list box
The prefix you should use: dir
Example name: dirImage

Object type: Drive list box
The prefix you should use: drv
Example name: drvSource

Object type: File list box
The prefix you should use: fil
Example name: filSource

Object type: Form
The prefix you should use: frm
Example name: frmEntry

Object type: Frame
The prefix you should use: fra
Example name: fraOption

Object type: Grid
The prefix you should use: grd
Example name: grdItem

Object type: Horizontal croll bar
The prefix you should use: hsb
Example name: hsbTemperature

Object type: Image
The prefix you should use: img
Example name: imgEmployee

Object type: Label
The prefix you should use: lbl
Example name: lblName

Object type: Line
The prefix you should use: lin
Example name: linHorizontal

Object type: List box
The prefix you should use: lst
Example name: lstCustomer

Object type: Menu
The prefix you should use: mnu
Example name: mnuReport

Object type: OLE
The prefix you should use: ole
Example name: oleObject2

Object type: Option button
The prefix you should use: opt
Example name: optCountry

Object type: Picture box
The prefix you should use: pic
Example name: picFlower

Object type: Shape
The prefix you should use: shp
Example name: shpSquare

Object type: Text box
The prefix you should use: txt
Example name: txtName

Object type: Timer
The prefix you should use: tmr
Example name: tmrStep

Object type: Vertical scroll bar
The prefix you should use: vsb
Example name: vsbRate

How to Return Property Values in VB6 Programming?

2010-04-03T21:33:00.013+07:00

It is often needed to return property value of an object to perform a calculation or some other task in your Visual Basic Application. And in the most previous sample program I've written use this way to perform some calculations, and also some other tasks. For example in the sample program of How to Convert Degree from Celcius to Another in VB 6 Programming? also returning property value to be calculated, and then the result of calculation to set the property value of other object.

To return the value of an object property, you can use below syntax:
Variable = Object.Property
Or
Object2.Property = Object1.Property

Note:
You can use the first syntax if you want to return the value of an object property into a variable, so the value will be kept in the variable.

You should use the second syntax if you want to return the value to set another object property value.

In the most sample program I've written in the previous postings use the second syntax to return value of an object property and perform the calculation, then the result kept as value of another object property.

Notice below sample code:
Text2.Text = Val(Text1.Text) * 1.8 + 32

The value of Text1.Text is returned and used as an operand in the calcuation phrase and the result of calculation then used as value of Text2.Text. In this example you don't need a variable to keep the calculation result.

Another example code:
strName = txtName.Text
lblName.Caption = txtName.Text

Any comment? Please leave it in the below comment box.

Setting Object Properties at Run Time in VB6 Programming

2010-03-30T12:11:00.008+07:00

In the previous posting you have learnt how to set object properties at design time, by clicking the object you want, then change/set the value of property in the properties window. In this posting I'll write how to set/change property value at run time (when program running). And also I'll give you a sample program (code).

Below is the syntax how to set an object property at run time:
Object.Property = Expression

For example:
Below statement will set Caption of lblName with "John Smith" at run time.
lblName.Caption = "John Smith"

However not all object properties can be set their values at run time, because some object properties can be set just at design time. In the next posting maybe I'll write lists of which object properties that can be set just at design time, which ones that can be set just at run time, and which ones that can be set both at design time and run time.

Setting Object Properties at Design Time in VB6

2010-03-29T12:36:00.009+07:00

In the previous posting I've written that you can set the properties of an object at design time. The properties settings that you establish at design time are used as the initial settings each time your application runs. You can set the object properties by using Properties window.

Although it is not a must, because you set the properties of course according to your need. But some properties usually you set them at design time, such as:
BackStyle
BorderStyle
Caption
Enabled
FillColor
FillStyle
Name
Visible

How to set the value of property at design time, you can follow below steps:

At the Form Designer window, select the form or control which you want to set the property by clicking it.
Visual Basic will activate the form or control, and displays the property for the object.

In the Propertis window, select the property you want to set.

Type or select the property setting value you want.
Some property values can be selected from the list, but others must be typed.

A Tips to Create a Function to Convert Numbers into Roman Numerals

2010-03-28T21:50:00.016+07:00

To create a number of letters we often use roman numerals to indicate the month of making the letter.For example, the letter number is '001 / Int/III/2010' where the symbol 'III' indicates that the letter was made in March 2010.

For this we need a function that can convert an integer number from 1 to 12 into roman numerals. In the Visual Basic programming, we can easily create such a function. Well, here we'll show an example program to create such functions, as well as examples of how to use it.

First open your VB program and select standard exe form

Click the View menu

Click the Code menu

Write the Visual Basic (VB) program code below

Function IToR(i As Integer) As String
   Dim s As String
   s = "I   II  III IV  V   VI  VII VIIIIX  X   XI  XII "
   IToR = Mid(s, (i - 1) * 4 + 1, 4)
End Function

Click the View menu

Click the Object menu

Put two label controls, two textboxes and a CommandButton to the form

Change the Caption of first label into 'Month'

Change the Caption of second label into 'Roman Numeral'

Change the name of the first textbox into 'txtMonth'

Change the name of the second textbox into 'txtRomNum'

Remove texts on the first and second textboxes

Change the name of the CommandButton into 'cmdConvert'

Change the CommandButton caption into 'Convert'
So your Screen design will look like the image below:

Double click CommandButton 'Convert'

Write below Visual Basic (VB) program coding

Private Sub cmdConvert_Click()
   txtRomNum.Text = IToR(Val(txtMonth.Text))
End Sub

Okay, you have completed the program
Now it's time to test

Run your program

Type a number such as 8 in the first textbox

Click CommandButton 'Convert'
Consider the results

With...End With Statement to Set Object Properties in VB6

2009-08-20T17:59:00.011+07:00

In the earlier posting I have written that you can set object properties in two session, at design-time and at run-time, although some object properties can be set in both run-time and design-time, other can be set just in design-time, and onother can be set just in run time.

When you set object properties maybe you need to several properties at once, for example you want to set the properties of TextBox as following:

set font to Bold mode

set Font Size to 24

set the text with a value "Set Object Properties"

So you can do with the following coding:
Text1.Font.Bold = True
Text1.Font.Size = 24
Text1.Text = "Set Object Properties"

However to make it easier to read, and easier to understand, you can use With..End With statement to set several Object Properies.
You can use below code statement:

With Text1
.Font.Bold = True
.Font.Size = 24
.Text = "Set Object Properties"
End With

Example:
Create a screen design like below image:

Note: Set property "Multiline" of Text1 and Text2 to "True".

Double-click command1 button.
Write below coding:

Text1.Text = "One by one set object properties"
Text1.Font.Bold = True
Text1.Font.Size = 24
Text1.FontUnderline = True

Double-click command2 button.
Write below code statements:

With Text2
.Text = "Using With..End With to set object properties"
.Font.Bold = True
.Font.Size = 24
.FontUnderline = True
End With

So your coding should like below listing:

Private Sub Command1_Click()
Text1.Text = "One by one set object properties"
Text1.Font.Bold = True
Text1.Font.Size = 24
Text1.FontUnderline = True
End Sub
Private Sub Command2_Click()
With Text2
.Text = "Using With..End With to set object properties"
.Font.Bold = True
.Font.Size = 24
.FontUnderline = True
End With
End Sub

Now run your program, click command1 button, and then also click command2 button.
Your program sholud like screenshot in the top of this posting.

How to Place Controls into Form in VB6 Programming?

2009-08-19T18:47:00.043+07:00

In the previous posting I've told you that one of Visual Basic Development Environment's element is Toolbox, that contains controls. And another element is Form Design window (Form). You can place controls into your Form to build your VB application.

Now, how to place controls from Toolbox into your Form? Ok, it's just a simple way to do that. You just click, drag and drop the control you want. Or also you can double-click the icon Toolbox of the control you want.

There are two manners to place (add) controls to a form. The first manner is double-click the Toolbox icon of the control you want to add. In instance it will place the control with default size in the centre of active form.

When you adding more than one controls with this way, they will be placed on the top of each other in the center of the form. Then you can reposition/rearrange them into new place you want in the form.

The second manner, you can follow below steps:

First, click on the Toolbox icon of the control you want (for example TextBox control)

Place your mouse pointer on the Form (the pointer change to crosshair / + sign)

Position the pointer in the place where you want the upper left corner of the control

Click your mouse, hold, and drag (so your pointer draws a rectangle that indicate the size of your control)

When your control is correctly sized, release your mouse, so the control now appears on your Form

After you add controls to your form, you can reposition them to new location in the form, and also you can resize them according to your need. That are the way how to add / place control to your Visual Basic form.

Ok, I think you get it. And I'll write another Visual Basic tips in the next posting.

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Visual Basic Code Editor Window

2009-08-19T07:26:00.051+07:00

In the earlier posting I've told you that a VB Project maybe contains one or more files like form, module, and so on. One form usually contains one or more controls. However a form with it's control contained on it can't do anything without code statements (programming code) that associate with them. And a module also contains one or more statements.

A place in VB Development Environment where you can write your VB code statements (programming code) is called Visual Basic Code Editor Window. It's also known as the Code Window. A sparate Code Editor Window is displayed for each form or module in your project, making it easy to organize, view, and navigate.

There are two drop-down lists at the top of the Code Editor Window called Object List and Procedure List.The Object list contains a list of all the Contols that exist on the form. When you selectiong a control name from the list, the Procedure list shows all the events (actions) for the control.

Using the Object and Procedure list together, can make you easy to located and edit the code you want in your VB application. The image above (on the top of posting)illustrates the Code Editor Window.

To open the Visual Basic Code Editor Window you can follow the following steps:

In the Project Explorer window, click the form which code you want to open

Then Click View Code button

Tips:
For example: You have a control called txtAmount on your form. You want to write code statements on Sub txtAmount_LostFocus(). How can you do that?
Ok, you can follow the tips below:

Click the Form in the Project Explorer window

Click View Code button

In the Code Editor window, click txtAmount from the Object list

Then click LostFocus from the Procedure list

So, Sub txtAmount_LostFocus() appears on your screen (in the Code Editor window) and you can write your code statements you want.

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Select Case End Select - VB6 Sample Programme Part 2

2009-08-18T13:29:00.052+07:00

This posting is continuation of previous posting "Select Case End Select - VB6 Sample Programme Part 1". In the previous posting you have designed a programme interface like below image, and you have saved it.

Now, let's writing the programme coding for the above programme design.

Double click cmdCalBonus button to create sub cmdCalBonus_Click()

Write down below programme coding in the cmdCalBonus_Click() area

Select Case Val(txtSalQty.Text)
Case 1 To 2
txtBonus.Text = "2%"
Case 3, 4
txtBonus.Text = "3%"
Case 5 To 6
txtBonus.Text = "4.5%"
Case 7 To 8
txtBonus.Text = "6.5%"
Case 9
txtBonus.Text = "10%"
Case Else
txtBonus.Text = "15%"
End Select
txtBonusAmt.Text = Val(txtSalQty.Text) * Val(txtPriceUnit.Text) * _
Val(Left(txtBonus.Text, Len(txtBonus.Text) _
- 1)) / 100

At the end, your programme will look like below listing:

Private Sub cmdCalBonus_Click()
Select Case Val(txtSalQty.Text)
Case 1 To 2
txtBonus.Text = "2%"
Case 3, 4
txtBonus.Text = "3%"
Case 5 To 6
txtBonus.Text = "4.5%"
Case 7 To 8
txtBonus.Text = "6.5%"
Case 9
txtBonus.Text = "10%"
Case Else
txtBonus.Text = "15%"
End Select
txtBonusAmt.Text = Val(txtSalQty.Text) * Val(txtPriceUnit.Text) * _
Val(Left(txtBonus.Text, Len(txtBonus.Text) _
- 1)) / 100
End Sub

Let's test your programme to check whether it's correct or not.

Click Start button on your VB toolbar

Type a number (for example 5) on your textbox with label Your Sales Quantity

Type a number (for example 100) on your textbox with label Price Unit (USD)

And finally click Calculate Bonus button

Notice what happen on your program, what's the result?

According to the Bonus Table if Sales Quantity = 5, so the Bonus Percentage should equal to 4.5%. So the Bonus Amount = 5 X 100 X 4.5 / 100. And the result is 22.5. So your program should like below screenshot.

Now I'll explain how the programme works.

When you type 5 in the Your Purchase Quantity, then type 100 in the Price Unit (USD), and click Calculate Bonus button, so the cmdCalBonus_Click() executed.

Then this statement "Val(txtSalQty.Text)" will convert text "5" into number 5

Then in Select Case.. defined that txtBonus.Text is "4.5%" according to the Sales Quantity => 5

Then program executes below statement:

txtBonusAmt.Text = Val(txtSalQty.Text) * Val(txtPriceUnit.Text) * _
Val(Left(txtBonus.Text, Len(txtBonus.Text) _
- 1)) / 100

Mybe you think that this is a complex statement. But in fact it's just a simple statement.
Val(txtSalQty.Text) convert text "5" into number 5
Val(txtPriceUnit.Text) convert text "100" into number 100

Because txtBonus.Text = "4.5%" (this is a text) so:
Len(txtBonus.Text) will return 4, and Len(txtBonus.Text) - 1 will return 3
Left(txtBonus.Text, Len(txtBonus.Text) - 1) equals to Left("4.5%",4-1) will return "4.5"
Then Val(Left(txtBonus.Text, Len(txtBonus.Text) - 1)) equal to Val("4.5") will return number 4.5

So the above formula will equal to:
txtBonusAmt.Text = Val("5")*Val("100")*Val(Left("4.5%",Len("4.5%")-1))/100
<=> txtBonusAmt.Text = 5 * 100 * 4.5 / 100
<=> txtBonusAmt.Text = 22.5

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Select Case End Select - VB6 Sample Programme Part 1

2009-08-18T08:55:00.010+07:00

In this posting I'll write a sample of simple VB6 programme that using Select Case..End Select control structure. However this programme also using several VB6 functions like Val() (to convert text into number so can be calculated), Len() (to get the length of a text) and Left() (to pick up a part from the left side of a text).

The scenario of the programme is as the following:

This programme is Bonus Calculation (Sales System).

Here it is the bonus percentage table:

Sales Quantity = 1 - 2 -> Bonus = 2%
Sales Quantity = 3 - 4 -> Bonus = 3%
Sales Quantity = 5 - 6 -> Bonus = 4.5%
Sales Quantity = 7 - 8 -> Bonus = 6.5%
Sales Quantity = 9     -> Bonus = 10%
Sales Quantity = 10 or more -> Bonus = 15%

Bonus Amount = Sales Quantity X Price Unit X Bonus

The screen design of the programme is like below screenshot.

Now, let's design the programme first (create screen interface).

Open your Visual Basic 6 software

Select a standard type project

Create 5 Labels

Create 4 Textboxes

Create a Command button

Arrange the controls on your Form like the picture above

Click first Label (Label1)

Rename the caption of Label1 into Bonus calculation

Change the font size into 24

Change the caption of Label2, Label3, Label4 and Label5 into Your Sales Quantity, Price Unit (USD), Percentage of Bonus, and Amount of Bonus (USD)

Click first Textbox (Text1), clear it's Text, and rename into txtSalQty

Click second Textbox (Text2), clear it's Text, and rename into txtPriceUnit

Click third Textbox (Text3), clear it's Text, and rename into txtBonus

Click fourth Textbox (Text4), clear it's Text, and rename into txtBonusAmt

Click Command1 button, change the caption into Calculate Bonus, and rename into cmdCalBonus

Click anywhere in Form1 area, and rename into frmCalBonus (look at properties window)

Click Project1 file (in Project explorer window)

Click cell next to (Name) in Properties Window, and change the Name into prjCalBonus

Look at image above, your screen design should like that.
Ok, now the time to save your work (your programme) in order you can edit it next time (this programme will be used in the next posting). Here it is tips to save your VB6 programme:

Click File menu on your menu bar

Click Save Project As... menu

On Save File As window, type frmCalBonus on the cell with label File name:

Select the folder you want to save in, then click Save button

Then on Save Project As window, Type prjBonus on the cell with label File name:

Then click Save button

Note: The extention .vbp and .frm will automatically given by the system.
Ok, now your programme has been saved. You have 2 files in your project: prjBonus.vbp and frmCalBonus.frm and you can close your VB programme. I'll continue to write the programme coding in the next posting.

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Temperature Conversion with Multiple Base in VB6 Programming

2009-08-16T10:14:00.004+07:00

Temeprature Conversion with Multiple Base in VB6 Programming

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How to Convert Degree from Kelvin to Another in VB6 Programming?

2009-08-16T10:04:00.004+07:00

How to Convert Degree from Kelvin to Another?

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How to Convert Degree from Rheamur to Another in VB6 Programming?

2009-08-16T09:51:00.005+07:00

In the previous posting you have learnt a simple VB programming tips "How to convert degree from Fahrenheit into another one in VB6 programming". Now we will learn another simple VB programming tips "How to convert degree / temperature from Rheamur into another one", so the base degree is Rheamur, and will be converted into Celcius, Fahrenheit and Kelvin. We have three previous conversion formulas (Celcius base) as follow:
Fahrenheit = ( Celcius X 1.8 ) + 32
Rheamur = Celcius X 0.8
Kelvin = Celcius + 273.15

From these formulas, now we can generate new three other formulas (Rheamur base) as the following:
Celcius = Rheamur / 0.8
Fahrenheit = ( ( Rheamur / 0.8 ) X 1.8 ) + 32
Kelvin = ( Rheamur / 0.8 ) + 273.15

Now, let's implement above formulas into a simple VB6 programming. Let's go on to the following simple VB programming tips!

Create a VB project for example Project1

Create a VB standard form for example Form1

Create 5 labels for example Label1, Label2, Label3, Label4, Label5

Go to Label1 properties by clicking Label1 object, and then change Label1 Caption into "Degree Conversion", and change Font Size into 14.

Go to Label2 properties, and then change Label2 Caption into "Rheamur"

Go to Label3 properties, and then change Label3 Caption into "Celcius"

Go to Label4 properties, and then change Label4 Caption into "Fahrenheit"

Go to Label5 properties, and then change Label5 Caption into "Kelvin"

Create 4 text boxes for example Text1, Text2, Text3, Text4

Create a command button for example Command1

Go to Command1 properties, and change Command1 caption into "Convert"

So your screen design should look like below image:

Double click anywhere in the Form1 area to create a Sub Form_Load()

Write down below program coding in the Sub Form_Load() area
'to clear the content of text boxes
Text1.Text = ""
Text2.Text = ""
Text3.Text = ""
Text4.Text = ""

Double click the command button with caption "Convert" to create a Sub Command1_Click()

Write down below program coding in the Sub Command1_Click() area
'conversion process
'Text1 represents Rheamur
'Text2 represents Celcius
'Text3 represents Fahrenheit
'Text4 represents Kelvin
Text2.Text = Val(Text1.Text) / 0.8
Text3.Text = ((Val(Text1.Text) / 0.8) * 1.8) + 32
Text4.Text = (Val(Text1.Text) / 0.8) + 273.15

So your program will look like below listing:
Private Sub Command1_Click()
'conversion process
'Text1 represents Rheamur
'Text2 represents Celcius
'Text3 represents Fahrenheit
'Text4 represents Kelvin
Text2.Text = Val(Text1.Text) / 0.8
Text3.Text = ((Val(Text1.Text) / 0.8) * 1.8) + 32
Text4.Text = (Val(Text1.Text) / 0.8) + 273.15
End Sub

Private Sub Form_Load()
'to clear the content of text boxes
Text1.Text = ""
Text2.Text = ""
Text3.Text = ""
Text4.Text = ""
End Sub

Ok, your program's finish. Test your program by clicking Start button on your VB toolbar to know whether your program working properly or not.

Type a number in Text1 for example 80 (in the text box with label "Rheamur")

Click command button with label "Convert"
If the results are 100 in Text2 (Celcius), 212 in Text3 (Fahrenheit), and 373.15 in Text4 (Kelvin), it means that your program is correct and working properly.
Look at below image for your illustration.

It is very easy and very simple isn't it? Would you like to try it? Ok, in the next posting I'll write another simple tips with VB6 programming. See you in the next posting!

How to Convert Degree from Fahrenheit to Another in VB6 Programming?

2009-08-16T09:31:00.004+07:00

In the previous posting I've told you a simple VB programming tips "How to convert degree from Celcius into another one". In this posting I'll tell you a tips "How to convert degree from Fahrenheit into another one", so the base degree is Fahrenheit. It will be converted into Celcius, Rheamur and Kelvin. As we know that we have three previous conversion formulas (Celcius base):
Fahrenheit = ( Celcius X 1.8 ) + 32
Rheamur = Celcius X 0.8
Kelvin = Celcius + 273.15

From above formulas, we are able to generate three other formulas (Fahrenheit base) as below:
Celcius = ( Fahrenheit - 32 ) / 1.8
Rheamur = ( ( Fahrenheit - 32 ) / 1.8 ) X 0.8
Kelvin = ( ( Fahrenheit - 32 ) / 1.8 ) + 273.15

Now let's implement these formulas in VB6 simple programming. Please follow below steps for your tips!

Create a VB project for example Project1

Create a VB standard form for example Form1

Create 5 labels for example Label1, Label2, Label3, Label4, Label5

Go to Label1 properties by clicking Label1 object, and then change Label1 Caption into "Degree Conversion", and change Font Size into 14.

Go to Label2 properties, and then change Label2 Caption into "Fahrenheit"

Go to Label3 properties, and then change Label3 Caption into "Celcius"

Go to Label4 properties, and then change Label4 Caption into "Rheamur"

Go to Label5 properties, and then change Label5 Caption into "Kelvin"

Create 4 text boxes for example Text1, Text2, Text3, Text4

Create a command button for example Command1

Go to Command1 properties, and change Command1 caption into "Convert"

So your design will look like below image (just a simple Screen Design):

Double click any where in Form1 area to create a Sub Form_Load()
Write down below program coding in the Sub Form_Load() area

    'to clear the content of text boxes
Text1.Text = ""
Text2.Text = ""
Text3.Text = ""
Text4.Text = ""

Double click Command1 command button (with caption "Convert") to create a Sub Command1_Click()
Write down below program coding in the Sub Command1_Click() area

    'conversion process
'Text1 represents Fahrenheit
'Text2 represents Celcius
'Text3 represents Rheamur
'Text4 represents Kelvin
Text2.Text = (Val(Text1.Text) - 32) / 1.8
Text3.Text = ((Val(Text1.Text) - 32) / 1.8) * 0.8
Text4.Text = ((Val(Text1.Text) - 32) / 1.8) + 273.15

So your program should look like below listing:

Private Sub Command1_Click()
'conversion process
'Text1 represents Fahrenheit
'Text2 represents Celcius
'Text3 represents Rheamur
'Text4 represents Kelvin
Text2.Text = (Val(Text1.Text) - 32) / 1.8
Text3.Text = ((Val(Text1.Text) - 32) / 1.8) * 0.8
Text4.Text = ((Val(Text1.Text) - 32) / 1.8) + 273.15
End Sub

Private Sub Form_Load()
'to clear the content of text boxes
Text1.Text = ""
Text2.Text = ""
Text3.Text = ""
Text4.Text = ""
End Sub

Note: In this simple VB program we haven't used variables yet, but we just use controls from Toolbox. Mybe in the next program we will use variables.

Ok, your program finish. Test your program by clicking Start button on your VB toolbar to know whether your program's working properly or not.

Type a number in Text1 for example 212 (in the text box with label "Fahrenheit")

Click command button with label "Convert"
If the results are 100 in Text2 (Celcius), 80 in Text3 (Rheamur), and 373.15 in Text4 (Kelvin), it means that your program is correct and working properly.
Look at below image for your illustration. Your program should like it.

It's an easy simple VB program isn't it? Would you like to try it?

How to Convert Degree from Celcius to Another in VB6 Programming?

2009-08-16T09:24:00.003+07:00

In this posting I will tell you a simple VB programming tips "How to convert degree / temperature from Celcius to another one", so the base temperature is Celcius. The temperature will be converted into Fahrenheit, Rheamur and Kelvin. As we know that we have three conversion formulas are (in Celcius base):
Fahrenheit = ( Celcius X 1.8 ) + 32
Rheamur = Celcius X 0.8
Kelvin = Celcius + 273.15
How to apply these three formulas in simple VB6 programming? It's just an easy thing to do! You can do it just with a simple VB program. Please follow below instructions for your tips!

Create a VB project for example Project1

Create a VB standard form for example Form1

Create 5 labels for example Label1, Label2, Label3, Label4, Label5

Go to Label1 properties by clicking Label1 object, and then change Label1 Caption into "Degree Conversion", and change Font Size into 14.

Go to Label2 properties, and find Label2 Caption and change the value into "Celcius"

Go to Label3 properties, and then change Label3 Caption into "Fahrenheit"

Go to Label4 properties, and then change Label4 Caption into "Rheamur"

Go to Label5 properties, and then change Label5 Caption into "Kelvin"

Create 4 text boxes for example Text1, Text2, Text3, Text4

Create a command button for example Command1

Go to Command1 properties, and change Command1 caption into "Convert"

So your screen design will look like below image:

Now, let's write the program coding.
Double click any where in Form1 area to create a Sub Form_Load()
Write down below program coding in the Sub Form_Load() area

    'to clear text boxes text
Text1.Text = ""
Text2.Text = ""
Text3.Text = ""
Text4.Text = ""

Double click Command1 command button to create a Sub Command1_Click()
Write down below program coding in the Sub Command1_Click() area

    Text2.Text = Val(Text1.Text) * 1.8 + 32
Text3.Text = Val(Text1.Text) * 0.8
Text4.Text = Val(Text1.Text) + 273.15

So your program will look like the following list:

Private Sub Command1_Click()
Text2.Text = Val(Text1.Text) * 1.8 + 32
Text3.Text = Val(Text1.Text) * 0.8
Text4.Text = Val(Text1.Text) + 273.15
End Sub

Private Sub Form_Load()
'to clear text boxes text
Text1.Text = ""
Text2.Text = ""
Text3.Text = ""
Text4.Text = ""
End Sub

Now, you can test your program by clicking Start button on your VB toolbar to check whether your program is correct or not.

Type a number in Text1 for example 15 (in the text box with label "Celcius")

Click Command1 command button (with label "Convert")
If the results are 59 in Text2 (Fahrenheit), 12 in Text3 (Rheamur), and 288.15 in Text4 (Kelvin), it means that your program is correct and running properly.
Look at below image for your illustration.

How do you think, it's an easy simple VB programming tips isn't it?

How to Automate Convert Numbers into Letters in VB6 Programming?

2009-08-16T09:13:00.003+07:00

How to automate conversion numbers? In the previous posting you have learnt how to convert numbers into letters with Select Case..End Select control structure, If..Then..Else..End If control structure, and command button. The conversion will be processed after you clik command button. In this session you still learn how to convert number into letter with Select Case..End Select and If..Then..Else..End If, however you don't need a command button anymore. The conversion will automatically processed when you typing a number in the text box. How to do this? What's the program like?

This is just an easy thing to do. You can use the previous program conversion number you have created. You just write down your coding in Sub Text1_Change() and Sub Text2_Change(). This two Subs that make conversion process automatically done. For detail how to do, you can follow below instructions (it's a simple VB programming tips).

1. Using if..then..else..end if control structure

Create a VB project for example Project1

Create a VB standard form for example Form1

Create a text box for example Text1

Create another text box for example Text2

Create a label for example Label1

Create another label for example Label2

Doubleclick Text1 text box to create a Sub Text1_Change()

Write down below program coding in the Sub Text1_Change() area

    If Val(Text1.Text) = 0 Then
Label1.Caption = "zero"
Else
If Val(Text1.Text) = 1 Then
Label1.Caption = "one"
Else
If Val(Text1.Text) = 2 Then
Label1.Caption = "two"
Else
If Val(Text1.Text) = 3 Then
Label1.Caption = "three"
Else
If Val(Text1.Text) = 4 Then
Label1.Caption = "four"
Else
If Val(Text1.Text) = 5 Then
Label1.Caption = "five"
Else
If Val(Text1.Text) = 6 Then
Label1.Caption = "six"
Else
If Val(Text1.Text) = 7 Then
Label1.Caption = "seven"
Else
If Val(Text1.Text) = 8 Then
Label1.Caption = "eight"
Else
If Val(Text1.Text) = 9 Then
Label1.Caption = "nine"
Else
If Val(Text1.Text) = 10 Then
Label1.Caption = "ten"
Else
If Val(Text1.Text) = 11 Then
Label1.Caption = "eleven"
Else
If Val(Text1.Text) = 12 Then
Label1.Caption = "twelve"
Else
If Val(Text1.Text) = 13 Then
Label1.Caption = "thirteen"
Else
If Val(Text1.Text) = 14 Then
Label1.Caption = "forteen"
Else
If Val(Text1.Text) = 15 Then
Label1.Caption = "fifteen"
Else
If Val(Text1.Text) = 16 Then
Label1.Caption = "sixteen"
Else
If Val(Text1.Text) = 17 Then
Label1.Caption = "seventeen"
Else
If Val(Text1.Text) = 18 Then
Label1.Caption = "eighteen"
Else
If Val(Text1.Text) = 19 Then
Label1.Caption = "nineteen"
Else
If Val(Text1.Text) = 20 Then
Label1.Caption = "twenty"
Else
Label1.Caption = "unrecognize number"
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If
End If

2. Using Select Case..End Select control structure

Doubleclick Text2 text box to create a Sub Text2_Change()

Write down below program coding in the Sub Text2_Change() area

    Select Case Val(Text2.Text)
Case 0
Label2.Caption = "zero"
Case 1
Label2.Caption = "one"
Case 2
Label2.Caption = "two"
Case 3
Label2.Caption = "three"
Case 4
Label2.Caption = "four"
Case 5
Label2.Caption = "five"
Case 6
Label2.Caption = "six"
Case 7
Label2.Caption = "seven"
Case 8
Label2.Caption = "eight"
Case 9
Label2.Caption = "nine"
Case 10
Label2.Caption = "ten"
Case 11
Label2.Caption = "eleven"
Case 12
Label2.Caption = "twelve"
Case 13
Label2.Caption = "thirteen"
Case 14
Label2.Caption = "forteen"
Case 15
Label2.Caption = "fifteen"
Case 16
Label2.Caption = "sixteen"
Case 17
Label2.Caption = "seventeen"
Case 18
Label2.Caption = "eighteen"
Case 19
Label2.Caption = "nineteen"
Case 20
Label2.Caption = "twenty"
Case Else
Label2.Caption = "unrecognize number"
End Select

In the pervious posting I have written a tips how to start using VB6 programming software. When you open your VB program software a project (Project1) and a form (Form1) automatically created. These are your VB programs. However at the moment they just saved in the memory of your computer, so if suddenly your computer is off the program will loose from your computer memory. You can't use your program you have created next time before you save them into your disk. In order you can use your program next time you must save your program first. After that you can reopen, reuse and edit your programs whenever you want to.

Now, how to save your VB program into your disk? Keep on reading below simple VB programming tips.
It's just a simple way to do. It's a good thing before you save your programs, you have to define first "what's your VB project name", "what's your VB form name", and "where your program will be saved in(which folder)".

For example you will save your program in a folder called D:\MyVBPrg, and your project name is MyFirstProj, and your form is MyFirstForm. Now, lets do the following instructions to save your VB program:

Open your windows Explorer, then create a folder called MyVBPrg in drive D: (mybe drive D:, E: etc depend on drive available on your computer)

Click menu File on your VB design screen

Click menu Save Project As...
Look at below screen shot.

Then a Save File As window will appear on your screen.

Type MyFirstForm in the cell with label File Name:

Click the cell with label Save in:

Choose the folder D:\MyVBPrg

Click Save

Then a Save Project As window will appears on your screen

Type MyFirstProj in the cell with label File Name

Click Save

Now your program's been saved already in folder D:\MyVBPrg with file name MyFirstProj.vbp (a VB Project file) and MyFirstForm.frm (a VB Form file). The extention .vbp and .frm are automatically given by Visual Basic software. Look at below image for your illustration.

Have you any comment? Please write down your commant in below comment box.

How to Start Using VB6 Programming?

2009-08-15T11:59:00.004+07:00

Before you start using VB6 programming software, you must have a VB6 software installed in your computer with Operating System Windows family. To start using it you can follow below instructions.

Click Windows Start

Point to Program menu

Point to Microsoft Visual Basic 6.0 menu

Click Microsoft Visual Basic 6.0 program
Please look at below image for your illustration:

Click Open

A VB project (Project1) and a Form (Form1) are automatically created. Now you are ready to design and create your VB6 program. Look at below picture for illustration.

What do you think?

Stop Dreaming Start Action

2009-08-15T11:01:00.007+07:00

Stop Dreaming Start Action is a phrase that be a key-word in a SEO contest that held by Jokosusilo.com website. Stop Dreaming Start Action is also a slogan of Jokosusilo's website, an Indonesian internet marketer. When the SEO contest starts so many Indonesian bloggers (estimated more than one thousand Indonesian bloggers) take place on the contest. The contest started on 20th June, 2009 and would finish on 15th September, 2009 at 09.00 Jakarta time. And the winners would be announced on the day. The registration would finish on 14th September, 2009 one day before the contest closed.

Stop Dreaming Start Action itself means that we don't just dream, we must stop dream, however we have to take action as soon as to reach all of our will, to reach all of our dreams, to reach our success. Because nothing will happend without action. Success won't come itself without hard working. To reach our success we have stop dream, and take action with hard working.

Everyone who health his/her body and mental must have goals, have desire. Also you and me with no exception must have desire, have dreams too. A goal would not come true by itself, unless with a real action, with hard working. You have to Stop Dreaming Start Action to achieve your goals.

You have to Stop Dreaming Start Action. For example you want to be a rich man, it is imposible you suddenly will be the rich man. It is imposible just say "bim salabim abra kadabra" and suddenly a hill of money falling down in front of you, imposible man! To be a rich man you must learn more and more, you have to work hard, and save your money, so you will be rich.

That is the mean of Stop Dreaming Start Action for me, stop your dreaming and start to take action in order all of your dreams come true. Every thing you want to achieve, you have to Stop Dreaming and Start Action as soon as. Ok, how about you... what is the meaning of Stop Dreaming Start Action? Have you done it? I hope it can be an inspiration for me, you, and all of us. Keep on Stop Dreaming Start Action.

Indonesian language:
Stop Dreaming Start Action merupakan sebuah frasa yang menjadi kata kunci dari kontes SEO yang diadakan oleh situs Jokosusilo.com. Stop Dreaming Start Action juga merupakan slogan dari situs Jokosusilo tersebut, salah satu internet marketer dari Indonesia. Ketika kontes SEO tersebut dibuka begitu banyak bloger dari Indonesia (diperkirakan lebih dari satu ribu blogger dari Indonesia) yang ikut ambil bagian dalam kontes tersebut. Kontes SEO tersebut dimulai pada tanggal 20 Juni 2009 dan akan berakhir pada tanggal 15 September 2009, pada jam 09.00 waktu Jakarta (WIB). Dan para pemenangnya akan diumumkan pada hari itu juga. Pendaftaran akan berakhir pada tanggal 14 September 2009, satu hari sebelum kontes ditutup.

Stop Dreaming Start Action itu sendiri memiliki arti kita jangan hanya menjadi orang yang suka bermimpi, kita harus berhenti dari bermimpi, namun sebaliknya kita harus segera melakukan suatu tindakan untuk meraih semua keinginan kita, untuk mencapai semua impian kita, untuk mencapai kesuksesan kita. Karena tiada hal akan terjadi tanpa suatu tindakan. Kesuksesan tidak akan datang dengan sendirinya tanpa dibarengi dengan kerja keras. Untuk mencapai kesuksesan kita harus berhenti dari menjadi seorang yang hanya bermimpi, dan harus melakukan suatu tindakan dengan bekerja keras sekuat tenaga.

Setiap orang yang memiliki kesehatan jasmani dan kesehatan rohani sudah pasti mempunyai cita - cita, mempunyai keinginan - keinginan. Begitu juga anda dan saya tanpa kecuali pasti mempunyai keinginan - keinginan, mempunyai impian - impian. Suatu cita - cita tidak akan tercapai dengan sendirinya, kecuali dengan suatu usaha yang sungguh - sungguh, dengan bekerja keras. Anda harus Stop Dreaming Start Action untuk mencapai cita - cita anda.

Anda harus Stop Dreaming Start Action. Misalnya anda ingin menjadi seorang yang kaya raya, maka tidak mungkin dengan serta merta anda menjadi kaya raya. Tidak mungkin hanya dengan mengatakan "bim salabim abra kadabra" dan kemudian segunung uang tiba - tiba "GEDUBRAK" jatuh di hadapan anda, itu tidak mungkin dong! Untuk menjadi kaya - raya anda harus belajar dengan sungguh - sungguh dan bekerja keras dan harus rajin menabung, maka lama - lama anda akan bisa menjadi kaya.

Begitulah dari sudut pandang saya bahwa Stop Dreaming Start Action memiliki arti Berhentilah dari menjadi seorang yang suka bermimpi dan mulailah berusaha agar mimpi - mimpi kita dapat menjadi kenyataan dengan cara bekerja keras. Terhadap segala sesuatu yang ingin anda capai, anda harus sesegera mungkin Stop Dreaming dan Mulai Melakukan Action. Ok, bagaimana menurut anda... apa arti dari Stop Dreaming Start Action? Apakah anda telah melakukannya? Saya berharap hal ini dapat menjadi inspirasi bagi saya, anda, dan kita semua. Tetaplah melakukan Stop Dreaming Start Action untuk menggapai cita-cita anda.

2009-08-14T22:34:00.008+07:00

Temperature Conversion with Multiple Base in VB6 Programming

Select Case End Select - VB6 Sample Programme Part 1

Select Case End Select - VB6 Sample Programme Part 2