摘自MSDN:CEdit::GetSel DWORD GetSel( ) const;void GetSel( int& nStartChar, int& nEndChar ) const;Return ValueThe version that returns a DWORD returns a value that contains the starting position in the low-order word and the position of the first nonselected character after the end of the selection in the high-order word.ParametersnStartCharReference to an integer that will receive the position of the first character in the current selection.nEndCharReference to an integer that will receive the position of the first nonselected character past the end of the current selection.ResCall this function to get the starting and ending character positions of the current selection (if any) in an edit control, using either the return value or the parameters.
DWORD GetSel( ) const;void GetSel( int& nStartChar, int& nEndChar ) const;Return ValueThe version that returns a DWORD returns a value that contains the starting position in the low-order word and the position of the first nonselected character after the end of the selection in the high-order word.ParametersnStartCharReference to an integer that will receive the position of the first character in the current selection.nEndCharReference to an integer that will receive the position of the first nonselected character past the end of the current selection.ResCall this function to get the starting and ending character positions of the current selection (if any) in an edit control, using either the return value or the parameters.