Calling the discover routine using C++

[nickdeacon]

I am attempting to call the routine tkcmdsetDDI_discover_pm3s from within a C++ MFC dialog based application using Visual Studio 2005. It should be very similar to the sample app in the sdk.

I can call init functions, and I can get the dll version numbers, but as soon as I try to call the discover_pm3s I get an exception error.

The only difference between this routine and the ones I can call is that it takes parameters, but I am passing the parameters exaclty as the sample code.

Has anyone else had this problem and can point me to where the problem lies?

[haboustak]

Are you using Managed C++? What's the exception?

VB throws an exception on every function with parameters, due to the C calling convention used in the DLL (cdecl vs stdcall). I wouldn't expect that to be a problem with C++, but you might want to look into it.

Are you sending in proper parameters?

Code: Select all

UINT16_T device_count;
tkcmdsetDDI_discover_pm3s(TKCMDSET_PM3_PRODUCT_NAME2, 0, &device_count);

Mike

[nickdeacon]

Thanks Mike

The exception is actually 'invalid handle', looking at the call stack, it seems to have got lost in the kernel. I think that the calling convention must be wrong although I have specified cdecl and the parameters are correct.

I tried calling the dll through a managed c# project and that works fine.

I need to investigate this further...

Nick

[Bas]

I'm having the same problem. At first I thought it was the compilers fault(using Visual Studio 2008 instead of 2005). But now that I see you have the same problem I'm confused.

Im not using MFC but just a regular console application. Initialization of the dll works the same as in the sample application. When I call tkcmdsetDDI_discover_pm3s I get an exception saying 'invalid handle'

Did you solve the problem?

Bas

[sensor]

I have the same pb . I have a PM4 et the function crash when i discover PM3 . but only in debug ! in release , it's OK. For resolve my probleme i discover only PM4 and it's ok in debug and release.

Excuse for my bad english.

Sensor