EM_LINEFROMCHAR

An application sends an EM_LINEFROMCHAR message to retrieve the index of the line that contains the specified character index in a multiline edit control. A character index is the number of characters from the beginning of the edit control.

EM_LINEFROMCHAR 
wParam = (WPARAM) ich;  // character index 
lParam = 0;             // not used; must be zero 
 

Parameters

ich

Value of wParam. Specifies the character index of the character contained in the line whose number is to be retrieved. If the ich parameter is –1, either the line number of the current line (the line containing the caret) is retrieved or, if there is a selection, the line number of the line containing the beginning of the selection is retrieved.

Return Values

The return value is the zero-based line number of the line containing the character index specified by ich.

Remarks

In a rich edit control, if the character index is greater than 64K, use the message EM_EXLINEFROMCHAR.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Requires version 1.0 or later.
  Header: Declared in winuser.h.

See Also

Edit Controls Overview, Edit Control Messages, EM_EXLINEFROMCHAR, EM_LINEINDEX