putenv
Sets an operating system environment variable.
Available in:
| Apps (win) |
Apps (char) |
Reportwriter |
RPC |
Standalone PL |
| X |
X |
X |
X |
X |
Syntax
string putenv(env-pair)
string env-pair
Description
Sets one or more operating system environment variable(s). The
env-pair variable is a double-quoted string of an environment
variable name
and its value. You can specify multiple name-value pairs separated by a comma.
The environment variable change is not persistent. That is,
it is only set for the session. It returns the env-pair string.
|
env-pair | specifies the variable(s) to set, and its
value(s).
|
Example
Sets the environment variable PRINTER to lpt300.
putenv("PRINTER=lpt300");
Sets multiple environment variables: the printer as well as paper size.
putenv("PRINTER=lpt3001,PAPER=letter");