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IBTC wrote:I had also problem with memory leaks. For me they disappeared after I disabled

Code: Select all

::oGet:SetFont( ::oFont )

at METHOD Initiate of CLASS TComboBox. In older version of FWH this line wasn't there.

Ruediger,

Instead of removing such code, please change the Method End() in Class TComboBox this way:

METHOD End() INLINE ::Hide(), If( ::oGet != nil, ::oGet:End(),), Super:End()

Antonio,

Antonio Linares wrote:

IBTC wrote:Instead of removing such code, please change the Method End() in Class TComboBox this way:

METHOD End() INLINE ::Hide(), If( ::oGet != nil, ::oGet:End(),), Super:End()

Thanks. But with this change the problem with fonts/memory leak still exists.

Ruediger,

Could you please provide a small test to reproduce the memory leak here ? thanks

I have had toolbar icons disappear due to memory leaks in the past. One way to test it is to create a memory leak intentionally so you can run the program and keep triggering the memory leak until the icons disappear.

James

You can easily check if an application is experiencing GDI objects handles leaking from here:



Trying to find the same option in Windows 8...

Found

Antonio,

Will you explain what exactly you found?

James

James,

How to monitor the GDI objects consumed by an application, reported from the Windows task manager

If there is a GDI objects handles leaking, that amount will keep increasing

Antonio Linares wrote:James,

How to monitor the GDI objects consumed by an application, reported from the Windows task manager

If there is a GDI objects handles leaking, that amount will keep increasing

Is this the type of memory problem they are reporting? Is this a GDI problem or some other kind of problem?

Thanks,
Randal

The problem is related with bitmaps, so it should be a GDI objects handles leaking issue

I have the feeling that the disappearing bitmaps are just a symptom of a memory leak elsewhere. As I suggested earlier, I think this could be proven by creating an app with a toolbar, then running a loop that creates something like a font and doesn't destroy it. You might also have to re-display the toolbar occasionally to see the effect.

Regards,
James

I re-read the earlier posts in this thread and I think this may be the problem.

I had also problem with memory leaks. For me they disappeared after I disabled

CODE: SELECT ALL EXPAND VIEW
::oGet:SetFont( ::oFont )


at METHOD Initiate of CLASS TComboBox. In older version of FWH this line wasn't there.
Best Regards,
Ruediger Alich

I don't have the 12.12 version of FWH so I can't look at the source, but there may be a font getting created and not destroyed.

Regards,
James

Wouldn't they be able to identify the problem as a font not being released or a gdi problem using checkres, if that were the problem?

Randal

Wouldn't they be able to identify the problem as a font not being released or a gdi problem using checkres, if that were the problem? -Randal

I would think so.

Regards,
James

I notice there is a similar discussion of vanishing bitmaps on toolbars back in Nov 2012 here:

http://forums.fivetechsupport.com/viewt ... =3&t=24329

James