Init(flags, assoc, hkeyProgId, hwnd)
Initializes the IQueryAssociations interface and sets the root key to the
appropriate ProgID.
Parameters
flags : int
One of shellcon.ASSOCF_* flagsassoc : string
The string data (ie, extension, prog-id, etc)hkeyProgId=None : PyHKEY
Root registry key, can be None
hwnd=None : PyHANDLE
Reserved, must be 0 or None