_intfclear Error problem

The Delphi object clears the object-related interface when it is disposed. If the developer has released the object corresponding to the interface prior to this, it is often reported to have access to memory errors when purged to that interface, such as

Break breakpoint is within the _intfclear function, such as

Workaround for this problem:

1. First determine which interface is released when the error occurs, we can add breakpoints in _intfclear, trace the release of interface information, basically can determine which interface caused the error, such as

2. In the destroy of the released object, set the interface to nil.

_intfclear Error problem