Cannot declare a variable CNiTimer in a header file * view.h

It cannot declare a variable CNiTimer in a header file * view.h?

I run a MDI VC2005 project with extention of studio OR measure. I have check the project example of "TemperatureSystemSDI.2005." It works very well.

But when I use the following statements in * view.h, compilation, errors are reported:

Code:

Class CVAView: public CFormView
{...

public:
CNiTimer * m_pTimer;

...

}

Error:

ERROR C2143, C4430.

At the first beginning, I assume that the error might occure when the failure of the header file include. But when I include the following headers, there are still compilation errors.

Code:

#include "NiGraph.h".
#include "NiSlide.h".
#include "NiTimer.h".

This time, compilation errors are:

Error C2440, C2548, C2143, C4430, even more than the cases do not include those headers.

I don't know what the problem is. I just declare a variable of CNiTimer! Could you please help me.

Add #include 'NiUtilityComponent.h' or use the Studio remove measure class library Wizard (in the Measurement Studio in Visual Studio menu) to add a reference to the library of utility classes. Files * Component.h aggregate all the necessary header and library includes a library for C++ Studio action.

If this does not work, please attach your project and we will take a look.

David Rohacek

National Instruments

Tags: NI Software

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