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...check, if a process is running?
Autor: Andi
Homepage: http://www.xdi-developergroup.de
[ Print tip ]  

Tip Rating (53):  
     


{ .... }

uses TlHelp32;

{ .... }


{ -----------------------------------------------------------------------------
  FUNKTION processExists(String)
  Überprüft, ob ein bestimmer Prozess läuft / Check if a process is running
}
function processExists(exeFileName: string): Boolean;
var
  
ContinueLoop: BOOL;
  FSnapshotHandle: THandle;
  FProcessEntry32: TProcessEntry32;
begin
  
FSnapshotHandle := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
  FProcessEntry32.dwSize := SizeOf(FProcessEntry32);
  ContinueLoop := Process32First(FSnapshotHandle, FProcessEntry32);
  Result := False;
  while Integer(ContinueLoop) <> 0 do
  begin
    if 
((UpperCase(ExtractFileName(FProcessEntry32.szExeFile)) =
      UpperCase(ExeFileName)) or (UpperCase(FProcessEntry32.szExeFile) =
      UpperCase(ExeFileName))) then
    begin
      
Result := True;
    end;
    ContinueLoop := Process32Next(FSnapshotHandle, FProcessEntry32);
  end;
  CloseHandle(FSnapshotHandle);
end;


// Example:
procedure TForm1.Button1Click(Sender: TObject);
begin
  if 
processExists('calc.exe') then
    
ShowMessage('process is running')
  else
    
ShowMessage('process NOT running');
end;

 

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