VB6.0

VB6.0VB6.0

New Interaction Techniques

Department of Computer SciencesUniversity of Tampere, Finland

Department of Computer SciencesUniversity of Tampere, Finland

September – December, 2003

Grigori Evreinov

www.cs.uta.fi/~grse/

Software writing for NIT & usability testing

TAUCHI MMIG G. Evreinov p 01_23 23.09.2003

Objects (Controls)

TextBox

Label

Frame

CommandButton

CheckBox

Shape

Image

PictureBox

MSFlexGrid

Timer

Menu

Software writing for NITVisual

Basic and their general properties

Top, Left, Height, Width

ScaleMode

ScaleTop, ScaleLeft

ScaleHeight, ScaleWidth

Enabled, Visible, Locked

Index (array of objects), TabIndex

Appearance, BackColor,

BorderStyle

Font, ForeColor, Alignment

ToolTipText, MousePointer

other properties

KeyPreview (Form)

MultiLine, ScrollBars, Text

Caption, AutoSize,

WordWrap, BackStyle

Cancel (btn)

Value

Picture, Icon (Form)

AutoRedraw (Form & PicB)

Rows, Cols

Interval


Software writing for NITand their event procedures*

Click, DblClick, KeyDown, KeyPress, KeyUp,

MouseDown, MouseMove, MouseUp

GotFocus, LostFocus

Shape has no event procedures

Timer

Load, Activate, Initialize, Unload, Resize, Terminate

Objects (Controls)

TextBox

Label

Frame

CommandButton

CheckBox

Shape

Image

PictureBox

MSFlexGrid

Timer

Menu

* a procedure is a block of code that performs some operation: Public (is available to all modules), Private (in the current module or form)


Software writing for NITVariables and data types

Boolean 2 bytes (storage size)True or False

Integer (%) 2 bytes -32,768 to 32,767 (256 x 256=65536)

Long (& long integer) 4 bytes -2147483648 to +2147483647

(65536 x 65536=4294967296)

Single (! single-precision) 4 bytes -3.402823E38 to -1.401298E-45 for “-” values;

1.401298E-45 to 3.402823E38 for “+” values.

Double (# double-precision) 8 bytes -1.79769313486232E308 to

-4.94065645841247E-324 for “-” values;

4.94065645841247E-324 to

1.79769313486232E308 for “+” values.

String ($ fixed-length) Length of string in bytes 1 to approximately 65,400 “…”

Variant (by default!) 16 bytes Any numeric value up to the range of a Double.

Byte 1 byte 0 to 255


Software writing for NITother Variables and data types

String(variable-length) 10 bytes + string length 0 to approximately 2 billion

characters (2Hb)

Variant(with characters) 22 bytes + string length Same range as for variable-

length String.

Currency (@ scaled integer) 8 bytes -922,337,203,685,477.5808 to

922,337,203,685,477.5807

Date 8 bytes January 1, 100 to December 31, 9999

Object 4 bytes Any Object reference

User-defined(using Type) Depends upon what elements are used The range of each

element is the same as the range of its data type.


Software writing for NITDeclaration and converting functions*

Dim str1 As Integer, cl1 As Integer

Dim Xtmp As Integer

Dim X As Single

Dim nChar As Integer

Dim CtrlMsk As Boolean

Dim ArrWords(19) As String

Dim LastFile As String, FileName As String

CInt, CLng, CBool, CDate, CStr

Xtmp = Cint(X)

Dim a, b, c As Integer

Variant

Variant

to declare constant

Const PI = 3.14159265

Const SND_LOOP = &H8

to declare function

Public Declare Function sndPlaySound Lib "winmm.dll" Alias "sndPlaySoundA"

(ByVal lpszSoundName As String, ByVal uFlags As Long) As Long

* http://www.juicystudio.com/tutorial/vb/variables.html

http://www.juicystudio.com/tutorial/vb/variables.html






Software writing for NITObjects (Controls)

Form, PictureBox

TextBox, Label, Frame

CommandButton

CheckBox

Shape

Image

MSFlexGrid, ListBox

supports the following methods*

Cls, Circle, Line, Pset, PaintPicture, PopupMenu, Hide

Refresh, ZOrder, Move, Drag, SetFocus

AddItem, Clear

* a built-in procedure that performs an operation on a specific control

or methods are actions that objects can perform


Software writing for NITFile System Object Methods

CopyFile Used to copy an existing file.

CopyFolder Used to copy an existing folder.

CreateFolder Used to create a folder.

CreateTextFile Used to create a text file.

DeleteFile Used to delete a file.

DeleteFolder Used to delete a folder.

DriveExists Used to determine whether a drive exists.

FileExists Used to determine whether a file exists.

FolderExists Used to determine whether a folder exists.

GetAbsolutePathName Used to return the full path name.

GetDrive Used to return a specified drive.

GetDriveName Used to return the drive name.

GetFile Used to return a specified file.

GetFileName Used to return the file name.

GetFolder Used to return a specified folder.

GetParentFolderName Used to return the name of the

parent folder.

GetTempName Used to create and return a string

representing a file name.

MoveFile Used to move a file.

MoveFolder Used to move a folder.

OpenTextFile Used to open an existing text file.

Common Dialog Box MethodsShowColor Used to display the Color dialog box.

ShowFont Used to display a list of fonts

ShowHelp Used to display a Windows Help File

ShowOpen Used to display the dialog to open files

ShowPrinter Used to display the dialog to open files

ShowSave similar to the ShowOpen method


Functions, most frequently usedAbs(number) ‘b = Abs(-50) b = 50Asc(string) ‘b = Asc(“Apple”) b = 65Dir(pathname,[ attributes]) returns the name of a file, directory, or folder that matches a specified pattern or file attribute

FileName = App.Path & “\TWords.txt”

strFile = Dir(FileName)

If strFile <> “” Then…

Error [(errornumber)] Integer that represents an error number

Debug.Print Error(ErrorNumber)

Hex (number) i = Hex(459) ‘= 1CBRnd[(number)] returns a random number (0-1)

before calling Rnd, use the Randomize statement without anargument to initialize the random-number generator based onthe system timer. to produce random integers in a given range, use this formula:

Int((upperbound - lowerbound + 1) * Rnd + lowerbound) here, upperbound is the highest number in the range, and

lowerbound is the lowest number in the range.

Software writing for NIT


Software writing for NITFunctions, most frequently used

LoadPicture([stringexpression]) returns a picture object (by Commdlg or “….bmp”) imgImage.Picture = LoadPicture()

Str(number) may be used to convert a non-String data type to a String data type

bString = Str(-459.65) ‘ returns “-459.65” backward Val(string)

InStr ([start, ]string1, string2[, compare]) returns the position of the first

occurrence of one string within another

Left(string, length) returns a specified number of characters from the left

side of a string

Len(string | varname) returns the number of chars in a string or the number

of bytes required to store a variable LTrim(string), RTrim(string), Trim(string) return a copy of a string without:

leading spaces (LTrim), trailing spaces (RTrim), or both (Trim). Mid(string, start[, length]) returns a specified number of chars from a string Right(string, length) returns a specified number of chars from the right

side of a stringStrComp(string1, string2[, compare]) performs a binary or textual comparison

[ http://www.juicystudio.com/tutorial/vb/strings.html ]

http://www.juicystudio.com/tutorial/vb/strings.html






Software writing for NITFunctions, most frequently used

Sqr(number) returns the square root of a number

Time returns a Variant of subtype Date indicating the current system time Timer returns the number of sec that have elapsed since 12:00AM (midnight) GetTickCount retrieves the number of milliseconds that have elapsed since

12:00AM (midnight) or have elapsed since Windows CE was started

MsgBox(prompt[, buttons*] [, title] [, helpfile, context]) displays a message in a dialog box, waits for the user to clicka button, and returns a value indicating which button the user clicked MsgBox “Error of opening” & FileNameMsgBox “Input's error”, , “SmartStick”

* (0–5) describes the number and type of buttons displayed in the dialog box; 1 – OK, 2 – Cancel, 3 – Abort, 4 – Retry, 5 – Ignore, 6 – Yes, 7 - No (16, 32, 48, 64) describes the icon style; (0, 256, 512, 768) determines which button is the default


Software writing for NITOperators & Statements, most frequently used

[Call] name [argumentlist] Call - optional keyword; name of the procedure to

call; argumentlist - optional. Comma-delimited list of

variables, arrays, or expressions to pass to the procedure.

Call PrintToDebugWindow ("Hello World")

PrintToDebugWindow "Hello World"

[Public | Private] Const constname [As type] = expression declares constants

[Public | Private] Declare Sub name Lib "libname" [Alias "aliasname"] [([arglist])]

or

[Public | Private] Declare Function name Lib "libname" _

[Alias "aliasname"] [([arglist])] [As type]used at the module level to declare references to external procedures in a dynamic-link library

(DLL)

Public Declare Function sndPlaySound Lib “winmm.dll” Alias “sndPlaySoundA” _

(ByVal lpszSoundName As String, ByVal uFlags As Long) As Long[ http://msdn.microsoft.com/library/en-us/vblr7/html/vastmConst.asp http://msdn.microsoft.com/library/en-us/vblr7/html/vastmCall.asp http://msdn.microsoft.com/library/en-us/vblr7/html/vastmDeclare.asp ]

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmConst.asp

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmCall.asp

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmDeclare.asp



Dim varname[([subscripts])][, varname[([subscripts])]] . . .

used at module, class, structure, procedure, or block level to

declare and allocate storage space for variables

varname - name of the variable, follows standard variable naming conventions

subscripts - dimensions of an array variable

ReDim [Preserve] varname(subscripts) [, varname(subscripts)] . . .

used at procedure level to reallocate storage space for an array variable

Do…Loop repeats a block of statements while a Boolean condition is True

or until the condition becomes True

For…Next repeats a group of statements a specified number of times

And, Or, Not

[ http://msdn.microsoft.com/library/en-us/vblr7/html/vastmDim.asp

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmReDim.asp

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmDo.asp

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmFor.asp ]

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmDim.asp

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmReDim.asp

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmDo.asp

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmFor.asp



End terminates execution immediatelyExit { Do | For | Function | Property | Select | Sub | Try | While }

exits a procedure or block and transfers control immediately to thestatement following the procedure call or the block definition

Sub ExitStatementDemo() Dim I, iNum As Integer Do ' Set up infinite loop.

For I = 1 To 1000 ' Loop 1000 times. iNum = Int(Rnd * 1000) ' Generate random numbers. Select Case iNum ' Evaluate random number. Case 7: Exit For ' If 7, exit For...Next. Case 29: Exit Do ' If 29, exit Do...Loop. Case 54: Exit Sub ' If 54, exit Sub procedure. End Select Next I Loop End Sub

Close [number] to close the file (number) opened with the help of Open

Load / Unload object[ http://msdn.microsoft.com/library/en-us/vblr7/html/vastmExit.asphttp://msdn.microsoft.com/library/en-us/vblr7/html/vastmEnd.asp ]

EndEnd Function End IfEnd Property End SelectEnd SubEnd TypeEnd With

Exit DoExit ForExit FunctionExit PropertyExit Sub

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmExit.asp

http://msdn.microsoft.com/library/en-us/vblr7/html/vastmEnd.asp


Software writing for NITUsability-testing

software for…

Clear DataTAUCHI MMIG G. Evreinov p 15_23 23.09.2003


TWords.txt /phrases

GridData1:

test words/chars

entered text /chars

time per char, ms

GridData2:

char per word /phrase

num. of entered words

num. of strokes /clicks per word /phrase

time per word/phrase, s

lblTestSymbol

txtText1

On-screen Keyboard

Break test

Test initialization

Ctrl+K=>move keys

SetSigns

SetCharacters

BackSp

Statistics()

Rtime, ms

s (st.dev), ms

Errors

wpm

TestTime, s

lblSave_Click()

GridData2_Click()to save column

GridData1_Click() to save column

txtPersonData comments…

fraDataWordsLoading

SetTest

lblOpen_Click()

SetData

Trial start

Timer1

Timer2



TWords.txt /phrases

GridData1:

test words/chars

entered text /chars

time per char, mslblTestSymbol

txtText1

On-screen Keyboard


fraDataWordsLoading

Lesson1



TWords.txt /phrases

GridData1:

test words/chars

entered text /chars

time per char, ms

GridData2:





lblTestSymbol

txtText1

On-screen Keyboard




fraDataWordsLoading

Lesson2



TWords.txt /phrases

GridData1:

test words/chars

entered text /chars

time per char, ms

GridData2:





lblTestSymbol

txtText1

On-screen Keyboard

SetSigns

SetCharacters

BackSp

lblSave_Click()




fraDataWordsLoading

lblOpen_Click()

Lesson3


Software writing for NITText <> “”

Lesson3

define the Length of the Text

return into the TextBoxplay wave “Empty”

an analysis of the last character

the last Char = Linefeed

remove two last chars in the TextBox

put cursor at the end of the text

play wave “Back Space”

remove the last char in the TextBox

put cursor at the end of the text

play wave “Back Space”

Yes

No

Yes

No

Exit

Exit

Exit

Private Sub BackSp()

* A sample of imaging for algorithm or procedure,

description should be done in a separate paragraph



TWords.txt /phrases

GridData1:

test words/chars

entered text /chars

time per char, ms

GridData2:





lblTestSymbol

txtText1

On-screen Keyboard

Ctrl+K=>move keys

SetSigns

SetCharacters

BackSp

lblSave_Click()




fraDataWordsLoading

lblOpen_Click()

Q

Lesson4



TWords.txt /phrases

GridData1:

test words/chars

entered text /chars

time per char, ms

GridData2:





lblTestSymbol

txtText1

On-screen Keyboard

Break test

Test initialization

Ctrl+K=>move keys

SetSigns

SetCharacters

BackSp

lblSave_Click()




fraDataWordsLoading

SetTest

lblOpen_Click()

SetData

Trial start

Timer1

Timer2

Lesson5



TWords.txt /phrases

GridData1:

test words/chars

entered text /chars

time per char, ms

GridData2:





lblTestSymbol

txtText1

On-screen Keyboard

Break test

Test initialization

Ctrl+K=>move keys

SetSigns

SetCharacters

BackSp

Statistics()

Rtime, ms

s (st.dev), ms

Errors

wpm

TestTime, s

lblSave_Click()




fraDataWordsLoading

SetTest

lblOpen_Click()

SetData

Trial start

Timer1

Timer2

Lesson6

SpotActivate


References

http://msdn.microsoft.com/vbasic/

Visual Basic Language and Run-Time Reference

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vblr7/html/vboriVBLangRefTopNode.asp

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vblr7/html/vaoriStatementsVBA.asp

http://msdn.microsoft.com/vbasic/downloads/samples/default.asp

VB tutorial http://www.juicystudio.com/tutorial/vb/

http://sunny.moorparkcollege.edu/~kmacone/docs/DataTypes.htm

http://sunny.moorparkcollege.edu/~kmacone/docs/objProc-Prop.htm

http://sunny.moorparkcollege.edu/~kmacone/docs/NamConv.htm

http://www.thescarms.com/vbasic/

http://www.planetsourcecode.com

Interactive Programming (COM132J2)

http://www.infj.ulst.ac.uk/%7Ecnugent/teaching/com148j2/com148j2.htm

http://www.fawcette.com/vsm/

http://www.devx.com/dotnet/Default.asp

Usability testing http://www.tracksys.co.uk/Pages/Usability/usability.htm


http://msdn.microsoft.com/vbasic/

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vblr7/html/vboriVBLangRefTopNode.asp

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vblr7/html/vaoriStatementsVBA.asp

http://www.thescarms.com/vbasic/

http://www.planetsourcecode.com/



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