Re: [Boost-users] __stdcall with boost::function

From: Ben Hutchings (ben.hutchings_at_[hidden])
Date: 2005-03-11 13:41:03

Olenhouse, Jason wrote:
> Ben Hutchings wrote:
> 
>>Olenhouse, Jason wrote:
>>
>>>I'm trying to pass a member function pointer around to the Windows 
>>>Service Control Manager through Windpws API functions, but 
>>>I think I'm having troubles with the __stdcall convention.
>>
>><snip>
>>
>>No, the problem is passing a member function pointer.  A 
>>member function 
>>pointer is not type-compatible with a function pointer with the same 
>>parameter types, regardless of whether they have the same calling 
>>convention.
> 
> <snip>
> 
> But I used boost::bind to get a function pointer to hide the implicit this.

Sorry, I skimmed the code and must have misunderstood how you were 
constructing the service dispatch table.

> I thought that the
> purpose of boost::bind was for that reason.  It seems that the way I did it was nearly successful
> other than function::target<>() returns a __cdecl function pointer instead of an __stdcall one, as
> indicated by the error that MSVC returns.  
<snip>

You can't use boost::bind or boost::function to generate function 
pointers for bound functions.  That would require run-time code 
generation.  Their purpose is to create function objects suitable for 
use with function templates.

Ben.