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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 Constants
The 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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