How can i debug own COM component?

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I need to debug COM component. I have the code of the component. I need to put breakpoint to the function to stop application to debug. How can i do it in Visual Studio 6.0? Application does not stop, when i put the breakpoint. Can you help me?

Posted 7-Dec-10 3:34am

Kozlov_Sergey

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Manfred Rudolf Bihy · Accepted Answer · 2010-12-07T04:12:00

Solution 1

Hello Sergey,

I guess your not running the COM component from within VS. To debug the COM component you'd have to attach the debugger to the process of the component.

Added:

http://www.codeguru.com/forum/showthread.php?t=322238

Cheers,

Manfred

Posted 7-Dec-10 4:12am

Manfred Rudolf Bihy

Updated 7-Dec-10 4:16am

v2

Comments

[no name] 8-Dec-10 2:32am

Is there any difference when debuging in release configuration with debug information (program database) and debug configuration with the same options except information of mfc and atl libraries symbols?

Manfred Rudolf Bihy 8-Dec-10 2:39am

You got me there! Sorry Sergey, that's beyond my competence in these matters. Are you now able to debug your COM component now?

[no name] 8-Dec-10 2:45am

I run the COM component from within Visual Studio 6.0. Before running, i have set COM component's project as active. Should i register component from Visual Studio output directory instead of installed program? It seem to me "yes".

[no name] 8-Dec-10 2:51am

It shows disassembly code even after registering in output location.

Manfred Rudolf Bihy 8-Dec-10 2:51am

Man you got me again. This is getting embarrasing :). To be honest I don't really know, but to make an educated guess, I would also say yes to registering the version in the projects output directory. It would be awfully nice of you to leave a short comment as to how you made it work (that is when you get it to work of course).

[no name] 8-Dec-10 3:01am

The component used dinamicly linked library. Debug stops in the library. But does not in the component (when i leave dinamicly linked library's function, it shows disassembly code of my directshow filter (The COM component)). My system is Windows 7 and Visual Studio 6.0.

[no name] 8-Dec-10 7:32am

The problem was solved, when it was said to me, that silence in 8 bit per sample audio is -127 (0x81).

achainard · Accepted Answer · 2010-12-07T04:48:00

Hi,

There's a lot of solution to debug your com.

Personally I add a call to "DebugBreak ();" on the COM main class constructor and I start a sample programme, the debug windows appear and I select the existing VC session (session with the com code loaded).
Vc break the code on DebugBreak line...

It's work with all programs like service, COM, ActiveX DirectShow filter...

Bye...

SoftwareDeveloperGoa · Accepted Answer · 2010-12-07T12:28:00

Solution 3

Create an EXE that uses the COM Object, open the COM Project, Execute it and it will ask for the exe, point it to the exe created which will use this COM Object and you can do whatever you wannna do

Posted 7-Dec-10 12:28pm

SoftwareDeveloperGoa