Returns the receiver's line count. This includes lines caused by wrapping.
@return the line count
@exception SWTException <ul> <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> </ul>
See Implementation
Returns the receiver's line count. This includes lines caused by wrapping.
@return the line count
@exception SWTException <ul> <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> </ul>