Correct spelling in InternetCheckConnectionA.

- Only prototype the interfaces which are subclassed (I overdid it
  last time!).
- Implement Get/Set Texture and GetBackBuffer, plus device's
  GetDisplayMode / GetDeviceCaps.
- Make some of the d3d9 skeleton code issue fixme's to highlight code
  which hasn't been migrated yet.
- Correct the d3d9 headers for D3DSURFACE_DESC which caused stack
  corruption in demos.

npapi.h.  Spotted by Paul Vriens.

W.

SHRegCreateUSKey{A,W}, SHRegDeleteEmptyUSKey{A,W},
SHRegDeleteUSValue{A,W}, SHRegEnumUSValue{A,W}.

user32.spec.

rather than a negated value. Add test case for this behavior.

marshaling.

around an x11drv_win_data pointer instead.

DrawDibTime, ICSeqCompressFrame{,End,Start}.
Forward GetOpenFileNamePreview to GetOpenFileNamePreviewA.

- Add prototypes for the COM interfaces.
- Fix some incorrect types from the last patch.

Spelling fixes.

init_/finalize_hash.
Removed the redundant pKeyContainer function parameter from
init_hash.

Fix for the case when there is no helpstringdll.
Fix for parameter arrays.

Set default ACTION property for Install.
Deformat more than JUST properties properly. Allows for Files and
Component paths in deformat.
Properly deformat a LaunchCondition failure dialog box.
Resolve and save registry Keypaths.
Write the Features published keys more correctly. Still some
problems.

fixes for MsiGetComponentPath.

- fixed some overlapped issues in socket handling
- moved kernel32.CancelIo implementation to ntdll

Fix apply button lighting up in audio tab.
Fix video tab(crash when checking desktop, apply button not lighting
up.
Deal with invalid Desktop registry value in video tab.
Fix apply button in libraries tab.
Cleaned up and documented all the conversions in the libraries tab.

Dll{GetClassObject,RegisterServer,CanUnloadNow} functions.

  together and to group similar functions.
- Document thread-safety of members of structs.