Computer Programming Concepts and Visual Basic David I. Schneider

STRETCH When the Stretch property of an image control is set to False (the default value),
the image control will hold the picture at its normal size. If the Stretch property is set to True,
the picture will be resized to fit the image control
STRING A variable of type String can hold a string of up to 32,767 characters. String values
are enclosed in quotes: “January 1, 2001”. String variables can be indicated by the type
tag $: FirstName$. A variable of type String*n holds a string of n characters, where n is a
whole number from 1 to 32,767. Variables of this type have no type tag and must be declared
in a Dim, Global, or Static statement. Until assigned a value, these variables contain a string
of n Chr(0)’s.
STRING If n is a whole number from 0 to 32767, the value of String(n, str) is the string consisting
of the first character of str repeated n times. If m is a whole number from 0 to 255,
the value of the function String(n, m) is the string consisting of the character with ANSI
value m repeated n times.
STYLE The Style property of a combo box determine whether the list is always visible
(Style = 1) or whether the list drops down when the user clicks on the arrow and then disappears
after a selection is made (Style = 0).
SUB/END SUB A Sub procedure is a multistatement block beginning with a statement of
the form Sub ProcedureName(parList), followed on subsequent lines by one or more statements
for carrying out the task of the Sub procedure, and ending with the statement End Sub.
The parameter list parList is a list of variables through which values will be passed to the
Sub procedure whenever the function is called. (See the discussion of Call.) Parameters may
be numeric or (variable-length) string variables as well as arrays.
TAB The function Tab(n) is used in Print and Print# statements to move the cursor to position
n and place spaces in all skipped-over positions. If n is less than the cursor position, the
cursor is moved to the nth position of the next line.
TABINDEX The property TabIndex determines the order in which the tab key moves the
focus about the objects on a form. Visual Basic automatically assigns successive tab indexes
as new controls are created at design time. Visual Basic also automatically prevents two
controls on the same form from having the same tab index by renumbering controls with
higher tab indexes when the designer or program directly assigns a new tab index to a control.
TAN For any number x (except for x = p/2, –p/2, 3 * p/2, –3 * p/2, and so on), the value of
the trigonometric function Tan(x) is the tangent of the angle of x radians. [radians]
TEXT For a text box, the Text property holds the information assigned to a text box. A statement
of the form textBoxName.Text = str changes the contents of textBoxName to the string
specified by str. A statement of the form str = textBoxName.Text assigns the contents of
textBoxName to str. For a list or combo box, control.Text is the contents of the currently
highlighted item or the item in the text box, respectively. For a grid, MSFlexGrid1.Text is the
contents of the active cell.
TEXTHEIGHT This method applies to forms, picture boxes, and printer objects. The value
of the method objectName.TextHeight(str) is the amount of vertical space required to display
the contents of str using the font currently assigned for objectName. These contents may
include multiple lines of text resulting from the use of carriage-return/line-feed pairs
(Chr(13) + Chr(10)) in str. The units of height are those specified by the ScaleMode and
ScaleHeight properties of objectName. (The default is twips.)
TEXTWIDTH This method applies to forms, picture boxes, and printer objects. The value
of the method objectName.TextWidth(strVar) is the amount of horizontal space required to
display the contents of strVar using the font currently assigned for objectName. When carriage
return/line feed pairs (Chr(13) + Chr(10)) create multiple lines in strVar, this will be
the space required for the longest line.
Appendix C 451