Как минимизиpовать все запущеные окна

/* Hачало (MINIMIZE.DPR)
{$APPTYPE CONSOLE}
program Minimize;
uses Windows,Messages;
var Count:integer;

function EnumProc (WinHandle: HWnd; Param: LongInt): Boolean; stdcall;
begin

if (GetParent (WinHandle) = 0) and (not IsIconic (WinHandle)) and
(IsWindowVisible (WinHandle)) then begin
PostMessage (WinHandle, WM_SYSCOMMAND, SC_MINIMIZE, 0);
Inc(Count);
end;
EnumProc := TRUE;
end;

begin
Count:=0;
EnumWindows (@EnumProc, 0);
Writeln('Minimized:',Count,' windows');
end. конец (MINIMIZE.DPR)*/