ENVIRON - mkilgore/QB64pe GitHub Wiki

The ENVIRON statement is used to temporarily set or change an environmental string value.

Syntax

ENVIRON stringExpression$

The stringExpression$ must include the environmental parameter ID and the setting:
- Using an = sign: ENVIRON "parameterID=setting"
- Using a space: ENVIRON "parameterID setting"
If the parameter ID did not previously exist in the environmental string table, it is appended to the end of the table.
If a parameter ID did exist, it is deleted and the new value is appended to end of the list.
Any changes made at runtime are discarded when your program ends.