Function CCODE::IBindStatusCallback_OnDataAvailable_Proxy

pub unsafe extern "C" fn IBindStatusCallback_OnDataAvailable_Proxy(
    This: *mut IBindStatusCallback, 
    grfBSCF: DWORD, 
    dwSize: DWORD, 
    pformatetc: *mut FORMATETC, 
    pstgmed: *mut STGMEDIUM
) -> HRESULT