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Environ Function
This standard VB function returns the string setting for a keyword in the operating system's environment table.
Syntax A
Environ[$](environment-string)
Syntax B
Environ[$](numeric_expression)
Argument Description environment-string The name of a keyword in the operating system numeric_expression An integer for the position of the string in the environment table (1st, 2nd, 3rd, and so on)Returns
The string value assigned to an environment variable.
Usage
If you use the environment-string parameter, enter it in uppercase, or Environ returns a null string (""). The return value for Syntax A is the string associated with the keyword requested.
If you use the numeric_expression parameter, the numeric expression is rounded to a whole number, if necessary. The return value for Syntax B is a string in the form
KEYWORD
=value
.
Environ returns a null string if the specified argument cannot be found.
The dollar sign ($) in the function name is optional. If it is included, the return type is string. Otherwise the function returns a variant of vartype 8 (string).
Example
This example lists the strings from the operating system environment table.
Sub Button_Click
Dim str1(100)
Dim msgtext
Dim count, x
Dim newline
newline = Chr(10)
x = 1
str1(x) = Environ(x)
Do While Environ(x) <> ""
str1(x) = Environ(x)
x = x + 1
str1(x) = Environ(x)
Loop
msgtext = "The Environment Strings are:" & newline & newline
count = x
For x = 1 to count
msgtext = msgtext & str1(x) & newline
Next x
End Sub
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Siebel VB Language Reference Published: 18 June 2003 |