for example, you want to use the button1 that is included in form2,you can do as follows:
at first, you must use 'unit2.pas' in unit1.pas ,then you can add the code:
procedure.......
begin
form2.button1....
end;
如果照你上面的写法,Form2 关闭后,就被 Free 了,你又怎么取得它上面的东西呢?
with TForm2.Create(self) do
try
ShowModal;
if radiogroup1.checked=True then showmessage('ok');
finally;
free;
end;
end;