41 lines
928 B
Plaintext
41 lines
928 B
Plaintext
|
{ Turbo Exec }
|
||
|
|
{ Copyright (c) 1985,90 by Borland International, Inc. }
|
||
|
|
|
||
|
|
program ExecDemo;
|
||
|
|
|
||
|
|
(*
|
||
|
|
Demonstration program that shows how to use the Dos
|
||
|
|
unit's Exec procedure to execute DOS commands (including
|
||
|
|
running other programs or batch files).
|
||
|
|
|
||
|
|
This program keeps prompting you for a DOS command until
|
||
|
|
you enter a blank line.
|
||
|
|
|
||
|
|
When using Exec, make sure you specify a {$M} directive
|
||
|
|
so the heap leaves some memory available for the child
|
||
|
|
process.
|
||
|
|
*)
|
||
|
|
|
||
|
|
{$M 8192,0,0} { Leave memory for child process }
|
||
|
|
|
||
|
|
uses Dos;
|
||
|
|
|
||
|
|
var
|
||
|
|
Command: string[127];
|
||
|
|
|
||
|
|
begin
|
||
|
|
repeat
|
||
|
|
Write('Enter DOS command: ');
|
||
|
|
ReadLn(Command);
|
||
|
|
if Command <> '' then
|
||
|
|
begin
|
||
|
|
SwapVectors;
|
||
|
|
Exec(GetEnv('COMSPEC'), '/C ' + Command);
|
||
|
|
SwapVectors;
|
||
|
|
if DosError <> 0 then
|
||
|
|
WriteLn('Could not execute COMMAND.COM');
|
||
|
|
WriteLn;
|
||
|
|
end;
|
||
|
|
until Command = '';
|
||
|
|
end.
|