Memory leak when using TTeeGDIPlus

[Kubach]

Hi,

it seems there is a memory leak when using TTeeGDIPlus. It can be reproduced in the sample project (Delphi 2010) I've attached.
Just run the code and then resize the form a couple of times and then close it. I've also attached a screenshot of the FastMM report that pops up.

I think it's caused by TGDIPlusCanvas.InitWindow() which is called by the draw routine.

It creates a TTeeCanvas3D object each time it is called but doesn't free it
...
begin
IXORCanvas:=TTeeCanvas3D.Create;

Could you please take a look at it?

Regards,
Amadeus

[Kubach]

While I'm at it: seems there's another one in Chart.pas ->TLegendSymbol.Draw()

OldBrush:=TBrush.Create;

OldBrush doesn't get freed.

[Yeray]

Hi Amadeus,

You are right. I could reproduce it so I've added it to the defect list to be revised in future releases (TV52014961).
Thanks for reporting it.

[Narcís]

Hi Amadeus,

While I'm at it: seems there's another one in Chart.pas ->TLegendSymbol.Draw()

OldBrush:=TBrush.Create;

OldBrush doesn't get freed.

Yes, we found that some weeks ago and fixed it for the next maintenance release.

[Narcís]

Hi Amadeus,

Just wanted to let you know that TV52014961 has been fixed for the next maintenance release. To fix this you can add line below to GDI+ canvas constructor (TGDIPlusCanvas.Create) and remove it from TGDIPlusCanvas.InitWindow.

Code: Select all

  IXORCanvas:=TTeeCanvas3D.Create;

[Kubach]

Yes, this does the trick.
Thanks for the quick help. It's appreciated

[Narcís]

Kubach,

You're very welcome. Thanks for your feedback too!