Menampilkan proses yang sedang berjalan di Windows

function EnumProcess(hHwnd: HWND; lParam : integer): boolean; stdcall;
var
pPid : DWORD;
title, ClassName : string;
begin
//if the returned value in null the
//callback has failed, so set to false and exit.
if (hHwnd=NULL) then
begin
result := false;
end
else
begin
//additional functions to get more
//information about a process.
//get the Process Identification number.
GetWindowThreadProcessId(hHwnd,pPid);
//set a memory area to receive
//the process class name
SetLength(ClassName, 255);
//get the class name and reset the
//memory area to the size of the name
SetLength(ClassName,
GetClassName(hHwnd,
PChar(className),
Length(className)));
SetLength(title, 255);
//get the process title; usually displayed
//on the top bar in visible process
SetLength(title, GetWindowText(hHwnd, PChar(title), Length(title)));
//Display the process information
//by adding it to a list box
ProcessForm.ProcessListBox.Items.Add
('Class Name = ' + className +
'; Title = ' + title +
'; HWND = ' IntToStr(hHwnd) +
'; Pid = ' + IntToStr(pPid));
Result := true;
end;
end;

procedure TProcessForm.GetProcessButtonClick(Sender: TObject);
begin
//Clear any previous calls
if ProcessListBox.Count > 0 then
ProcessListBox.Clear;
//define the tag flag
lp := 0; //globally declared integer
//call the windows function with the address
//of handling function and show an error message if it fails
if EnumWindows(@EnumProcess,lp) = false then
ShowMessage('Error: Could not obtain
process window hook from system.');
end;