Now I'm confused too. In "My Computer", the Advanced page shows the environmental variables. I presume that these are global and inherited by any console session. These are not modified by SetEnvironmentVariable()? Dave
--- On Sat, 8/16/08, Rob Kennedy <[EMAIL PROTECTED]> wrote: From: Rob Kennedy <[EMAIL PROTECTED]> Subject: Re: [delphi-en] Re: Set Environment Variable from Delphi Console App To: [email protected] Date: Saturday, August 16, 2008, 2:01 PM Branko BURDIAN wrote: > Simple example; > > program SetEnv; > {$APPTYPE CONSOLE} > uses > Windows; > procedure SetEnvVariable( const AName, AValue: string); > begin > if Trim(AValue) = '' then > SetEnvironmentVaria ble(PChar( AName), nil) > else > SetEnvironmentVaria ble(PChar( AName), PChar(AValue) ); > end; > begin > SetEnvVariable( 'foobar', 'abcdef'); > end; > > Compile and run program: > > C:\>SetEnv <Enter> > C:\>set foobar <Enter> > foobar=abcdes <= This is the result of "set foobar" command > > Result of runing program SetEnv is same as if you execute > "set foobar=abcdef" (without ") on command prompt!! Are you sure about that? I don't think you actually ran the code you show above. Each process inherits a *copy* of its parent's environment. Modifications to the environment are not propagated back to the parent process. When you run SetEnv, it does not modify the environment of cmd.exe. The "set" command is a built-in command of cmd.exe, so when you use it, you're making cmd.exe modify its own environment. Batch files, likewise, are executed by the command interpreter, not by a separate process, so batch files can modify the environments of the processes that execute them. -- Rob [Non-text portions of this message have been removed]
