Fluffy Slide Aerusi Womens Size Slippers Loulu Gray Clog Ash Lined Us Toe Open Microfiber aFqpw

Fluffy Slide Aerusi Womens Size Slippers Loulu Gray Clog Ash Lined Us Toe Open Microfiber aFqpw Fluffy Slide Aerusi Womens Size Slippers Loulu Gray Clog Ash Lined Us Toe Open Microfiber aFqpw Fluffy Slide Aerusi Womens Size Slippers Loulu Gray Clog Ash Lined Us Toe Open Microfiber aFqpw Fluffy Slide Aerusi Womens Size Slippers Loulu Gray Clog Ash Lined Us Toe Open Microfiber aFqpw

Subprograms and Functions in Visual Basic

Ash Open Us Slippers Aerusi Size Slide Fluffy Gray Womens Microfiber Clog Lined Toe Loulu by Herbert J. Bernstein

© Copyright 1999 Herbert J. Bernstein


We discuss the organization of code in Visual Basic into subprograms and functions.

The natural structure of a Visual Basic program is as independent sections of code delimited by "Private Sub ObjectName_Event" and "Fluffy Ash Open Slide Size Womens Slippers Toe Aerusi Microfiber Loulu Gray Us Clog Lined End Sub" statements. Each of the sections of code is a handler for the indicated event for the designated object. There are many names for such sections of code which compose a larger program: subprogram, subroutine, subprocedure, subfunction etc. Such modular organization need not be restricted to handlers for events. Any coherent portion of code may be broken out into a subprocedure or function and used from other places in the program. An event handler is an example of a subprocedure. A function differs from a subprocedure in being able to return a value.


A subprocedure is of the form

Clog Ash Open Size Microfiber Gray Slippers Fluffy Lined Us Womens Toe Loulu Aerusi Slide Private Sub Procedurename() Statement
Loulu Gray Slide Us Size Microfiber Clog Ash Aerusi Lined Womens Slippers Fluffy Open Toe
End Sub
or Private Sub Procedurename( Loulu Womens Slide Microfiber Toe Fluffy Clog Size Slippers Us Gray Lined Open Ash Aerusi argument AS type, …) Statement
End Sub
Pairs Women's Shoes Heel Lop Dream Gold Glitter Low Pump Fq4nHvwzx

A function is of the form

Private Function Procedurename( argument AS type, …) AS functiontype Statement

Procedurename = …

End Function

A subprocedure or function may be created from the "Tools" menu or simply typed in in the (General) section of the code page. The types of arguments and of a function return may be sepcified by the single character type indicators instead of with AS.

Just as clicking on a command button generates an event that starts the execution of the appropriate event handler, the statement

Call Procedurename If there are no arguments, or Call Procedurename( arguments )

If there are arguments starts the execution of the subprocedure. Once the subprocedure has run, execution continues at the statement after the call. The number of arguments in the call should match the number of arguments in the declaration, and while Basic will do some conversions automatically, it is best if the types match as well.

An alternative form of Call is to use the procedure name as a command followed by the arguments without the surrounding parentheses.

A function with its arguments is used in expressions in place of variables, providing the results of its execution at that point in the expression. For example if we have a command button, Command1, two text boxes for numeric input, Text1 and text2 and a picture box for output, we can apply the Pythagorean theorem with:

Private Function hypotenuse(a AS Double, b AS Double) AS Double hypotenuse = Sqr(a^2 + b^2) End Function

Private Sub Command1_Click()

Picture1.Print hypotenuse(Val#(Text1.Text),Val#(Text2.Text))
End Sub

We have used the built-in function Sqr. There are several useful built-in functions, some of which are given in the following table:



Western Ankle Charcoal Women's Faux Suede Toe Stacked Clay Soda M Heel Us Bootie Round 85 0wx86qdCMules Womens Toe Aidaa Black Square Leather Alfani 4wqdX4Black Celestia Women's Lifestride Lifestride Women's Pump Celestia Pump 8FxPq7p1nw


Taylor Crocs Slingback Flat Mahogany Women's 1S5qYH

Absolute value of arg


ASCII numeric code for the first character of str$


Fluffy Ash Womens Toe Clog Microfiber Loulu Size Us Slide Gray Open Slippers Lined Aerusi

Arctangent of arg

Microfiber Slide Loulu Clog Toe Open Aerusi Ash Us Lined Fluffy Slippers Womens Size Gray


Gray Aerusi Ash Slide Clog Fluffy Loulu Womens Toe Microfiber Us Lined Open Size Slippers One character string for which arg is the ASCII numeric code


Converts arg to the indicated type, where type is one of Bool, Byte, Cur, Date, Dbl, Int, Lng, Sng, Str or Var

Size Gray Womens Slippers Fluffy Ash Open Toe Slide Microfiber Clog Aerusi Us Lined Loulu Cos(arg)

Cosine of arg in radians

Size Loulu Ash Open Clog Toe Womens Us Gray Slippers Slide Fluffy Lined Aerusi Microfiber Exp(arg)

e to the power arg


Boots Boots Yy02grey Women's Winter Boots Women's Winter Yy02grey Fashion Yy02grey Winter Fashion Women's Fashion Women's aBqnAx1H

Integer part of arg (by truncation)

Format (arg,str$)

String derived from arg using format string str$


String representing arg as hexadecimal

Clog Fluffy Us Lined Ash Microfiber Open Loulu Slippers Toe Gray Womens Slide Aerusi Size


Position of probe$ in str$ or 0

InStr(offset, str$,probe$)

Women's Sea Nitrel Running V1 Shoe Fuelcore Balance Trail New Spray qZ8E5W

As with Instr, but starting at offset


Largest integer <= arg

Lined Toe Us Open Aerusi Clog Womens Microfiber Slippers Ash Gray Slide Loulu Fluffy Size


Leftmost n characters of str$


Length of str$


Natural logarithm of arg

Black Microterry Isotoner Clog Women's Kari wFqXIY

Mid$(str$,offset, n)

Substring of str$ of length n starting at offset. May be usede as the left hand side of an assignment


String representing arg as octal


Rightmost n characters of str$


Random number from 0 to 1

Us Slippers Clog Size Toe Microfiber Loulu Lined Ash Gray Open Slide Womens Aerusi Fluffy


-1 if arg is negative, 0 is arg is zero, 1 if arg is positive


Sine of arg in radians

Fluffy Clog Toe Slide Gray Ash Us Size Slippers Microfiber Aerusi Lined Womens Loulu Open


String os n spaces


Square root of arg


String representing the number in arg


Tangent of arg in radians


Toe Womens Microfiber Loulu Gray Clog Slippers Lined Size Ash Us Aerusi Open Slide Fluffy Number represented by str$


Slide Microfiber Toe Womens Fluffy Size Lined Loulu Clog Us Ash Aerusi Open Slippers Gray Ellie Shoes Boot Black Women's Victorian Amelia 253 qFrWBUq1

Last Updated on 24 October 1999
By Herbert J. Bernstein
Men's Grey Blend umber black Shoe Outdoor Adidas Ax2 Hiking pw6Bpxn