Re: Defining an empty ICfxEvents

[User (Legacy)]

Francisco Padron wrote in message ... 

>Yes. Chart FX itself, implements ICfxEvents. 

> 

>You can actually call Chart FX and it will call you back through the event 

>sync. 

> 

>Weird but should be OK. 

> 

This works but now I get a memory leak..... here's the code I use 

to set things up... 

     ICfxEvents *parent=0; 

     pChartFX->QueryInterface (IID_ICfxEvents, (void **) &parent); ##### 

     ICfxEvents *pEv = new MyCfxEvents (parent);   $$$$$ 

     parent->Release (); 

     pChartFX->raw_SetEventHandler((LPUNKNOWN) pEv,NULL); 

     pEv->Release(); // Chart FX will make the last release deleting this 

object upon destruction. 

inside MyCfxEvents, in the Fire_PaintMarker method, I call 

parent->Fire_PaintMarker, and it works like I would expect, 

the event sink method in the view gets called.  However, when 

I destroy the chart, the pointer allocated at the line with the $$$$$ 

never gets freed.  The comment on the last line seems to claim 

it will get freed, but it doesn't.  If I comment out the line with the 

#####, 

leaving parent 0, then, of course, I can't chain to the event sink, 

but I don't get the memory leak. 

Any clues?