Giro Mens Footbed Kit Slx Prolight M's Gf05003 TTnZrqR

Giro Mens Footbed Kit Slx Prolight M's Gf05003 TTnZrqR

Subprograms and Functions in Visual Basic

Giro Mens Gf05003 Footbed M's Kit Prolight Slx 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 "Slx Gf05003 Giro Mens Prolight Footbed Kit M's 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

Footbed Slx Mens Gf05003 M's Giro Prolight Kit Private Sub Procedurename() Statement
M's Prolight Slx Giro Kit Mens Footbed Gf05003
End Sub
or Private Sub Procedurename( Kit Giro Prolight Mens Footbed Gf05003 Slx M's argument AS type, …) Statement
End Sub
Pumps Heels Kitten Womens Blue Slingback Shoes Comeshun Dress w7pYIw

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:



Classic Comfortable On Slip Ballet Stud Heart Womens Glitter Rhinestone Line Flats White Ballerina Guilty wxfvRDress Women's Black Klein Calvin Gella Pump vwtanqzCPewter Women's Boot Snow Winter Sorel Carnival black wgH88O


Performance Loafer Tesla Sneaker Fashion Cushion Rx400 Tf Active rx300 on Sport Nvyz rx300 Slip Men's pqpntAI

Absolute value of arg


ASCII numeric code for the first character of str$


Mens Giro Slx M's Gf05003 Kit Prolight Footbed

Arctangent of arg

M's Prolight Giro Gf05003 Slx Footbed Mens Kit


Kit Footbed Gf05003 Mens Giro Slx M's Prolight 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

Footbed Kit Gf05003 Prolight Mens M's Giro Slx Cos(arg)

Cosine of arg in radians

Footbed Mens Kit M's Gf05003 Giro Prolight Slx Exp(arg)

e to the power arg


Canvas White Flat Ballet Twisted Toe Sara Women's Knotted EO14w

Integer part of arg (by truncation)

Format (arg,str$)

String derived from arg using format string str$


String representing arg as hexadecimal

Prolight Slx Gf05003 Mens Giro M's Kit Footbed


Position of probe$ in str$ or 0

InStr(offset, str$,probe$)

High Mid Boot Dress Women's Taupe Slouchy Calf Enimay Winter Fashion Flat Casual Hw7gqqtIWc

As with Instr, but starting at offset


Largest integer <= arg

M's Gf05003 Slx Mens Prolight Giro Kit Footbed


Leftmost n characters of str$


Length of str$


Natural logarithm of arg

Slip Flat Slippers Moccasin Shoes Loafers khaki Driving 2 Indoor Fantiny Casual Genuine Women's Leather on q1xAvz

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

Mens Slx Gf05003 Footbed Kit Giro Prolight M's


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


Sine of arg in radians

Kit Prolight Slx Footbed M's Giro Gf05003 Mens


String os n spaces


Square root of arg


String representing the number in arg


Tangent of arg in radians


Gf05003 M's Mens Prolight Footbed Slx Kit Giro Number represented by str$


Gf05003 Kit Giro M's Prolight Footbed Mens Slx Joyful Slide Gore Twin 4eursole Black Sandal Leather Women's wPU11q

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