COM/interface question

[BLS]

May I suggest to have a look at :
http://www.dsource.org/projects/juno/wiki/TypeLibraryImporter

you'll find worthfull COM information and a nice tool to automate this 
task.
HTH Bjoern

Mike schrieb:
> I'm getting a strange compilation error with a COM interface I'm trying to access. Here's the relevant part of the interface:
> 
> extern(Windows) interface IASIO : IUnknown
> {
>     ASIOBool init(void*);
> [snip]
>     ASIOError getChannels(long*, long*);
> [snip]
> }
> 
> And here's the problem:
> 
> test.init(null); // Error: function expected before (), not null of type IASIO*
> test.getChannels(&ichans, &ochans); // compiles
> 
> test is of type IASIO*. ASIOBool and ASIOError are both aliases for long. The null in the "init" is not the problem; if I give the function the correct pointer it doesn't compile as well.
> 
> Has anybody any idea why one call compiles and the other doesn't?
> 
> -Mike