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