这段代码是什么意思？
procedure TMainForm.FormCreate(Sender: TObject);
var
Setting: LongInt;
begin
if BorderStyle= bsNone then Exit;
Setting:= GetWindowLong(Handle, gwl_style);
if (Setting and ws_Caption)= ws_Caption then
begin
case BorderStyle of
bsSingle,
bsSizeable: SetWindowLong(Handle, gwl_Style, Setting and (Not(ws_Caption))or ws_border);
bsDialog: SetWindowLong(Handle, gwl_Style, Setting and (Not(ws_Caption))or ds_modalframe or ws_dlgframe);
end;
end;
Height:= Height- getSystemMetrics(sm_cyCaption);
Refresh;
end;


[解决办法]
窗口 风格 ，大小的一些设置 ，具体可以查看msdn 。