selection has been cancelled, so the button is redrawn in the "up"
state.

skip calling them if timer signal occured while current thread was
holding the Win16Lock (to prevent 16-bit stack corruption).

- more depth conversion routines for X11 (15, 16 and 32 -> 8)

Hook cursor/icon destruction into FreeResource (like Win95).

Merged NE and PE resource handling.

Fixed a wrong initialization of the VT sizes array.

- new stubs:  NtQueryDirectoryFile,  ZwQueryDirectoryFile
- impl.: RtlAllocateHeap, RtlCreateHeap, RtlDestroyHeap, RtlFreeHeap,
  RtlGetDaclSecurityDescriptor, RtlGetSaclSecurityDescriptor
- impl. by Rex Jolliff (rex@lvcablemodem.com): RtlTimeToTimeFields,
  RtlTimeFieldsToTime

New: GetSecurityDescriptorSacl.

Delphi 2.0 passes NULL for lpstrFileTitle to GetOpen/SaveFileName.