How to debug Solidworks add-in with ATL COM dll interface

for VB6 (no idea if this works in C++, but maybe you can figure something similar out):

1. add breakpoint to the code (F9), for example for the last line of SwAddin_ConnectToSW function
2. press F8
3. start SW
4. press F8 until you are at the end of the function
5. do what ever you need within SW, switch to VB and use F8 to run code line by line

this way gives you the normal error messages and you don't have to compile dll again and again just for testing..

Hi Markku,

Thanks a lot. I just figure out how to do in VC++, similar to what you decribed in VB. In VC, we can just start in debug mode, then VC will ask for the host program, browse to select solidworks; then we can load addin in solidworks; and the debug information is in VC IDE.

In VS.NET there is a VC++ utility called 'MFC-ATL Trace Tool', which I guess would be useful but I don't know how to make it useful.

Thank you!