ODL file problem

[Helix]

I'm exporting two UDTs from VC++ to VB6 using an ODL file.
Da problem is that apparently I can't export a struct with members of another exported struct. Here's da code:

[uuid(1CFE9260-D6FB-11d7-9236-E4FCAE870F25),helpstring("Temp"),lcid(0x0409),version(1.0)]library Temp
{
[helpstring("Typesmodule"),version(1.0),dllname("Temp.dll")]module Typesmodule
{struct point2d{double x,y;};
struct line2d{point2d m1,m2};}
};

I'm getting error MIDL2025 : syntax error : expecting a type specification near "point2d"
Is there something I can do about it?

[swoopy]

>struct line2d{point2d m1,m2};}

You are missing a semicolon here:
struct line2d{point2d m1,m2;};}

I doubt this will fix the error though. This is a wild guess. Is it possible this should be C, not C++?

struct line2d{struct point2d m1,m2;};}

[Helix]

You are missing a semicolon here:
struct line2d{point2d m1,m2;};}

That was good to know, but it doesn't solve the problem.
Reposting code ...

[uuid(1CFE9260-D6FB-11d7-9236-E4FCAE870F25),helpstring("Temp"),lcid(0x0409),version(1.0)]library Temp
{
[helpstring("Typesmodule"),version(1.0),dllname("Temp.dll")]module Typesmodule
{
struct point2d{double x,y;};
struct line2d{point2d m1,m2;};
}
};

error MIDL2025 : syntax error : expecting a type specification near "point2d"

I'm working in Visual C++ 5.0. What do you mean by "C not C++"?

[swoopy]

In C you may need to specify point2d is a struct:

struct line2d{struct point2d m1,m2;};}

[Helix]

Oh my god, it works! I can't thank you enough.

By the way, how was I suppose to know?! This odl stuff is most badly documented.

[swoopy]

You may be able to tell from the file extension. In general C++ files have a .cpp extension. C files have a .c extension. Since most compilers will compile either, they use the extension to determine whether its C or C++.

If your file has a .c extension, supposedly its C. But it's possible you could rename it to a .cpp, and the original code may compile. You might try this.