somSelf (WPObject *) - input
Points to an object of class WPObject.
hwndCnr (HWND) - input
Handle of the container window from which the object is opened. This value may be set to NULLHANDLE.
ulView (ULONG) - input
OPEN_CONTENTS
param (ULONG) - input
This value is (reserved = NULL) for views supported by the WPObject class.
rc (HWND) - returns
NULLHANDLE