[Lazarus] Confusion with TProcess on Windows

[Michael Van Canneyt]

On Thu, 8 Aug 2013, Richard Mace wrote:

> Hi All,
> I am baffled :)
> If I open a command prompt, change to the directory which contains plink.exe and run the command:
> 
> plink -pw password root at 192.168.0.5 command
> 
> The command works no problem, but if I do following in a TProcess I get a "flash" of a black window, then nothing!
> 
>   Process := TProcess.Create(nil);
>   try
>     sPSFTPFile := IncludeTrailingBackslash(ExtractFilePath(ParamStr(0))) + 'plink.exe';
>     Process.Executable := sPSFTPFile;
>     S := '-pw ' + Password + ' ' + Username + '@' + IPAddress + ' ' + Command;
> 
>     Process.Parameters.Add(S);

Obviously this is wrong.

It should be:

With process.Parameters do
   begin
   Add('-pw');
   Add(Password);
   Add(Username+'@'+IPAddress);
   Add(Command);
   end;

Your example is specified as wrong almost verbatim in the documentation:

http://www.freepascal.org/docs-html/fcl/process/tprocess.parameters.html

Michael.