The Win32 API provides two integer-conversion functions for edit controls designed to contain numbers only. The SetDlgItemInt function creates the string representation of a specified integer (signed or unsigned) and sends the string to an edit control. SetDlgItemInt returns no value. The GetDlgItemInt function creates an integer (signed or unsigned) from its string representation in an edit control. GetDlgItemInt returns the integer (or an error value).