[Overview][Constants][Types][Procedures and functions][Variables] Reference for unit 'oldlinux' (#rtl)

GetEnv

Return value of environment variable.

Declaration

Source position: oldlinux.pp line 1470

function GetEnv(

  P: String

):Pchar;

Description

GetEnvreturns the value of the environment variable in P. If the variable is not defined, nil is returned. The value of the environment variable may be the empty string. A PChar is returned to accomodate for strings longer than 255 bytes, TERMCAPand LS_COLORS, for instance.

Errors

None.

Example

Program Example41;

{ Program to demonstrate the GetEnv function. }

Uses oldlinux;

begin
  Writeln ('Path is : ',Getenv('PATH'));
end.