Hi all,

I have a question about detecting memory leaks in my qt based application.

I'm using Qt 4.7.0 with VS2008.

Maybe this is a simple question and I get a fast answer.
This is my snipped out code of my qt based application:

int* a = new int;
*a = 1;

When I start the app in debug-mode within VS2008 and finish the app correctly by clicking the windows system menu then the output window of VS2008 shows only some text like:

...
Thread 'Win32 Thread' (0xf68) finished with code 0 (0x0).
BTMMHOOK 15.12.2010 12:19:31 Thread<0460> Hook DLL unloaded
Thread 'Win32 Thread' (0x132c) finished with code 0 (0x0).
Program "[4052] LineView.exe: Systemown" finished with code 0 (0x0).

When I use the snipped code above in a simple MFC application and run it in debug-mode and close it then the following text is showed by output window of VS2008:

...
BTMMHOOK 15.12.2010 12:21:16 Thread<0E14> Hook DLL unloaded
Detected memory leaks!
Dumping objects ->
e:\entwicklung\simplemfc\simplemfc\simplemfc.cpp(7 7) : {565} normal block at 0x0034B790, 4 bytes long.
Data: < > 01 00 00 00
Object dump complete.
Program "[2160] SimpleMFC.exe: Systemown" finished with code 0 (0x0).

I think that's strange! The compiler warning options are the same.
Yes, I know that all classed inherited by QObject are deleted automatically and "delete" is not neccessary. But the snipped code above causes definitly a memory leak.

Can someone explain that to me why VS2008 doesn't show that messages by developing qt apps?

Thanks a lot,
jack