Visual Studio 2005 on Japanese

Does anyone know how I can express inputted japanese character-numbers, (１２３４５６７８９０) as normal integer values (1234567890)

if im writing an application for a japanese user and they enter on the form in a textbox "７", in the japanese font, how can i convert this as intger 7?

if i get the textbox.text value, it doesnt convert to an intger, even the char datatype doesnt like it.

Is the input done in Unicode form or SJIS? Just use whatever API is appropriate to convert to Unicode if it's SJIS and then write your own atoi routine which supports Japanese 0-9 characters, it should be rather easy (get the charcode of 0, and handle it like you would with normal ASCII characters, except sizeof(wchar_t) is 2, not 1).