Re: Windows Drag & Drop

[David Chisnall]

On 7 Apr 2011, at 21:00, Eric Wasylishen wrote:

> You have to do some COM stuff.. it looks like it might be easier to do in C++,
> but the GDK implementation does it in pure C. It would be really nice to have
> this working!


You probably have to either do it in C, or use Microsoft's C++ compiler for 
compiling.  Unless it's been implemented while I wasn't paying attention 
(entirely possible), g++ can not produce C++ classes that have the same layout 
(including vtable layout) as Microsoft C++  compiler, meaning things that rely 
on the C++ ABI are not likely to work with g++.  

Someone is working on adding this to clang at the moment, but the ABI pretty 
much totally undocumented, so I wouldn't want to rely on good support.  This 
changes a bit with win64 (someone at Microsoft learned to write documentation 
in the last 25 years).

David

-- Sent from my Apple II