Repaint tooltip when item info changes.

compared with Windows.

- Remove redundant test in TOOLBAR_DrawButton.

HardwareAcceleration in [dsound] section of config file.

  NtReadFile has succeeded.
- Test case for this behaviour.

- Use new CreateSpecific function for file reader that doesn't query
  for IMemInputPin.
- Get rid of inefficient use of IMemInputPin in general pin code.

  on Darwin.
- Add support for the -framework "name" linker option.
- NtQueryVolumeInformationFile set device info on Darwin.

windows with the WS_EX_CONTROLPARENT style (if they are visible and
enabled).

areas.

the Unix one.

no-header case.

Remove format checks to allow driver to decide if format supported.
Code cleanups.

add duplex caps and return them when necessary.
Clean up event message printing.

  + added necessary semantics to fd flags
  + no longer uses fd type (but fd flags) read/write semantic behavior
- fixed socket code to use the proper manifest constants
- fixes for kernel32.GetOverlappedResult without hEvent set
- in ntdll.Nt{Read|Write}File
  + always reset the event
  + added support for longlong offsets
  + better object disposal in error handling code paths

fonts.