Adjust header, avoid if-statements in HwndMSWheel inline-function


git-svn-id: https://svn.code.sf.net/p/mingw-w64/code@6402 4407c894-4637-0410-b4f5-ada5f102cad1
Add winapi-family check, add missing prototype for SnmpListenEx prototype,
some cleanup


git-svn-id: https://svn.code.sf.net/p/mingw-w64/code@6403 4407c894-4637-0410-b4f5-ada5f102cad1
Ups ... last comment for checking was intended for this file.
Other was nearly the same but that it added missing/new W7 + W8 API.


git-svn-id: https://svn.code.sf.net/p/mingw-w64/code@6404 4407c894-4637-0410-b4f5-ada5f102cad1
Add new path-function API header


git-svn-id: https://svn.code.sf.net/p/mingw-w64/code@6405 4407c894-4637-0410-b4f5-ada5f102cad1
Add mediaobj interface


git-svn-id: https://svn.code.sf.net/p/mingw-w64/code@6406 4407c894-4637-0410-b4f5-ada5f102cad1
Update mfobjects interface for winapi-family and W8


git-svn-id: https://svn.code.sf.net/p/mingw-w64/code@6407 4407c894-4637-0410-b4f5-ada5f102cad1