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VBscript Constants
A
constant is a meaningful name that takes the place of a number or string and
never changes. VBScript defines a number of intrinsic constants.
String
ConstantsThe following
string constants can be used anywhere in your code in place of actual
values:
|
Constant |
Value |
Description |
| vbCr |
Chr(13) |
Carriage
return |
| vbCrLf |
Chr(13)
& Chr(10) |
Carriage
return–linefeed combination |
|
vbFormFeed |
Chr(10) |
Form feed;
not useful in Microsoft Windows |
| vbLf |
Chr(10) |
Line feed |
|
vbNewLine |
Chr(13)
& Chr(10) or Chr(10) |
Platform-specific newline character; whatever is appropriate for
the platform |
|
vbNullChar |
Chr(0) |
Character
having the value 0 |
|
vbNullString |
String
having value 0 |
Not the
same a zero-length string (""); used for calling external
procedures |
| vbTab |
Chr(9) |
Horizontal
tab |
|
vbVerticalTab |
Chr(11) |
Vertical
tab; not useful in Microsoft Windows |
Color Constants
The following color constants can be
used anywhere in your code in place of actual values:
|
Constant |
Value |
Description |
|
vbBlack |
&h00 |
Black |
| vbRed |
&hFF |
Red |
|
vbGreen |
&hFF00 |
Green |
|
vbYellow |
&hFFFF |
Yellow |
| vbBlue |
&hFF0000 |
Blue |
|
vbMagenta |
&hFF00FF |
Magenta |
| vbCyan |
&hFFFF00 |
Red |
|
vbWhite |
&hFFFFFF |
White |
Comparison Constants
The following comparison constants
can be used anywhere in your code in place of actual values:
|
Constant |
Value |
Description |
|
vbBinaryCompare |
0 |
Perform a
binary comparison. |
|
vbTextCompare |
1 |
Perform a
textual comparison. |
|
vbDatabaseCompare |
2 |
Perform a
comparison based upon information contained in the database
where the comparison is to be performed. |
Date and Time Constants
The following date and time constants
can be used anywhere in your code in place of actual values:
|
Constant |
Value |
Description |
|
vbSunday |
1 |
Sunday |
|
vbMonday |
2 |
Monday |
|
vbTuesday |
3 |
Tuesday |
|
vbWednesday |
4 |
Wednesday |
|
vbThursday |
5 |
Thursday |
|
vbFriday |
6 |
Friday |
|
vbSaturday |
7 |
Saturday |
|
vbFirstJan1 |
1 |
Use the
week in which January 1 occurs (default). |
|
vbFirstFourDays |
2 |
Use the
first week that has at least four days in the new year. |
|
vbFirstFullWeek |
3 |
Use the
first full week of the year. |
|
vbUseSystem |
0 |
Use the
date format contained in the regional settings for your
computer. |
|
vbUseSystemDayOfWeek |
0 |
Use the day
of the week specified in your system settings for the first day
of the week. |
Date Format Constants
The following date format constants can be used anywhere in your code in
place of actual values:
|
Constant |
Value |
Description |
|
vbGeneralDate |
0 |
Display a
date and/or time. For real numbers, display a data and time. If
there is no fractional part, display only a date. If there is no
integer part, display time only. Date and time display is
determined by your system settings. |
|
vbLongDate |
1 |
Display a
date using the long date format specified in your computer's
regional settings. |
|
vbShortDate |
2 |
Display a
date using the short date format specified in your computer's
regional settings. |
|
vbLongTime |
3 |
Display a
time using the long time format specified in your computer's
regional settings. |
|
vbShortTime |
4 |
Display a
time using the short time format specified in your computer's
regional settings. |
File Input/Output Constants
The following file input/output constants can be used anywhere in
your code in place of actual values:
|
Constant |
Value |
Description |
|
ForReading |
1 |
Open a file
for reading only. No writing to this file can take place. |
|
ForWriting |
2 |
Open a file
for writing. If a file with the same name exists, its previous
contents are overwritten. |
|
ForAppending |
8 |
Open a file
and write to the end of the file. |
VarType Constants
The following VarType constants can be used anywhere in your code in
place of actual values:
|
Constant |
Value |
Description |
|
vbEmpty |
0 |
Uninitialized (Default) |
| vbNull |
1 |
Contains no
valid data |
|
vbInteger |
2 |
Integer
subtype |
| vbLong |
3 |
Long
subtype |
|
vbSingle |
4 |
Single
subtype |
|
vbDouble |
5 |
Double
subtype |
|
vbCurrency |
6 |
Currency
subtype |
| vbDate |
7 |
Date
subtype |
|
vbString |
8 |
String
subtype |
|
vbObject |
9 |
Object |
|
vbError |
10 |
Error
subtype |
|
vbBoolean |
11 |
Boolean
subtype |
|
vbVariant |
12 |
Variant
(used only for arrays of variants) |
|
vbDataObject |
13 |
Data access
object |
|
vbDecimal |
14 |
Decimal
subtype |
| vbByte |
17 |
Byte
subtype |
|
vbArray |
8192 |
Array |
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