Visual C++ and MFC Programming 2nd Edition

Index Visual C++ and MFC Fundamentals

double MOISemiCircleX(double r)

{

return r * r * r * r * PI / 8;

}

double MOISemiCircleXC(double r)

{

return 0.110 * r * r * r * r;

}

double MOISemiCircleYC(double r)

{

return MOISemiCircleX(r);

}

// Triangle

double MOITriangleX(double b, double h, int)

{

return b * h * h * h / 12;

}

double MOITriangleXC(double b, double h, int)

{

return b * h * h * h / 36;

}

9. To add a definition file, display the Add New Item dialog box again. In the
   Templates list, click Module-Definition File (.def)


10. In the Name edit box, type MomentInertia and press Enter


11. Change the file as follows:

LIBRARY MomentInertia

EXPORTS

MOIRectX

MOIRectY

MOIRectXC

MOIRectYC

MOICircleXC

MOICircleYC

MOISemiCircleX

MOISemiCircleXC

MOISemiCircleYC;

MOITriangleX

MOITriangleXC

12. To create the DLL, on the main menu, click Build -> Build MomentInertia

22.5.2..Usage of a Definition File DLL........................................................

Although we mentioned that you can create a definition file to have an import library,

you do not have to use it, although you can. The technique we used above allows the

compiler to know that you need an import library. This means that there are at least two

different ways you can make use of a definition file (as we stated already, the most

difficult aspect of DLL is based on decisions, not how to create a library).