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[tofse]

ok, dann springt er hier hin:

Code:

procedure TWinControl.CreateWnd;
var
  Params: TCreateParams;
  ClassRegistered: Boolean;
{$IF DEFINED(CLR)}
  TempClass: TWndClassInfo;
  WndClass: TWndClass;
{$ELSE}
  TempClass: TWndClass;
{$IFEND}
begin
  CreateParams(Params);
{$IF DEFINED(CLR)}
  Params.WinClassName := Format('%s.%d',
    [Params.WinClassName, AppDomain.CurrentDomain.GetHashCode]);
{$IFEND}
  with Params do
  begin
    if (WndParent = 0) and (Style and WS_CHILD <> 0) then
      if (Owner <> nil) and (csReading in Owner.ComponentState) and
        (Owner is TWinControl) then
        WndParent := TWinControl(Owner).Handle
      else
        raise EInvalidOperation.CreateFmt(SParentRequired, [Name]); // <----------------------------------------- hier stoppt er

Leider muss ich hier passen, was hier das Problem sein soll ?????