http://bugs.winehq.org/show_bug.cgi?id=37003
--- Comment #2 from Qian Hong fracting@gmail.com --- Sorry for confusion, correct:
Expect result: Draw a complete login dialog box including username form and password form and submit button. (See Screenshot: Expected login dialog )
Actual result: Nothing has been drawn except a submit button. However, either clicking on the button or typing "tab" key repeatedly help the application draw more areas, with enough luck it can draw completely. (See Screenshot: QQ 2013 paints incompletely)