SaveTo
return SaveTo(file, exportAs);
status_t status = SaveTo(mallocIO, kExportAsPicture);
status_t status = SaveTo(mallocIO, kExportAsBitmap);
status = SaveTo(mallocIO, kExportAsHTML);
SaveTo(mallocIO, kExportAsText);
status = SaveTo(mallocIO, kExportAsPicture);
status_t SaveTo(entry_ref& ref,
status_t SaveTo(BDataIO &to, uint32 as = kExportAsText);
fSudokuView->SaveTo(ref, fExportFormat);