int num1,num2,num3;CString ch1,ch2,ch3;GetDlgItem(IDC_EDIT1)->GetWindowTextW(ch1);GetDlgItem(IDC_EDIT2)->GetWindowTextW(ch2);
num1=(int)_ttoi(ch1);num2=(int)_ttoi(ch2);num3=num1+num2;
//_itow(num3,ch3,10);ch3.Format(_T("%d"), num3);GetDlgItem(IDC_EDIT3)->SetWindowTextW(ch3);
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