[Qt] TQtCaret mem leak

[zeljko at holobit.net]

Quoting Vincent Snijders <vsnijders at quicknet.nl>:

> zeljko at holobit.net schreef:
>> Seem that nobody is freeing GlobalCaret variable from QtCaret unit, so
>> it produces  mem leak.
>> So , should we create it with Application parameter as Owner instead
>> of nil, or call some destroy on app termination ?
>> I've just setted up Application as Owner, leak is gone ....
>> any ?
>>
>
> My first idea is in TQTWidgetSet.Destroy or TQTWidgetSet.AppTerminate.
>
> Who creates the GlobalCaret?

winapi eg. ShowCaret(). It's created only once during application  
lifetime (if any control asks about caret), and it's never deleted.