switching to Visual Studio 10

[Arbol One <arbolone gmail com>]

My application compiles perfectly using MinGW, but when I try compiling it
using Visual Studio 10 I get this run time exception.
Conversion from charter set 'WCHAR_T' to 'UTF-8' is not supported
This is caused by this line:
Glib::ustring apstr;
...
apstr.append("SELECT n_id FROM ");

How can I handle this problem? Does gtkmm-2.4 has a mechanism for it?

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