development.

Change cooperative level to pass on windows.

- add ", {0, 0}, 0, 0" in comment lines
- update copyright statement

exercise the interface.

instead of using TlsAlloc.

different thread input.

- implement _tzset, and initialize _daylight, _timezone, and _tzname
  from libc values

- environment variables are expanded, so SEE_MASK_DOENVSUBST is
  supported

- maintain PROPSETFLAG_ANSI flag based on codepage
- update comments

taken from quartz with only minor adaptions.

non-left-aligned text, prevents jumping when resizing non-left-aligned
text, implements clipping for images and correctly aligns bitmaps when
an image is already there.

dialog anyway. Clear the window property on WM_DESTROY.

corner.

redraw_window server call so that the parent windows get properly
validated if necessary.

the same thread input, otherwise just drop the message.