Call this function to retrieve the length of a line in an edit control.
int LineLength( int nLine = -1 ) const;
- Specifies the character index of a character in the line whose length is to be retrieved. If this parameter is –1, the length of the current line (the line that contains the caret) is returned, not including the length of any selected text within the line. When LineLength is called for a single-line edit control, this parameter is ignored.
When LineLength is called for a multiple-line edit control, the return value is the length (in bytes) of the line specified by nLine. When LineLength is called for a single-line edit control, the return value is the length (in bytes) of the text in the edit control.
Use the LineIndex member function to retrieve a character index for a given line number within a multiple-line edit control.
For more information, see EM_LINELENGTH in the Platform SDK.
See the example for CEdit::LineIndex.