Tcl/Tk Text Widget Library Module

The Tcl/Tk text widget library module has the file name tw.tcl. This module contains procedures specific to Tk text widgets.

Here is a list of procedures in the this module:

- gotoline
- lineno
- textlines

# Module Dependencies

No other modules are required with this module.

# Module Definition Files

This module does not require any definition files.

# Module Procedures

## gotoline

    Declaration  : proc gotoline {tw row {col 0}}
    Parameters   :
          Name   : tw
          Type   : text widget
    Description  : text widget name

          Name   : row
          Type   : positive integer
    Description  : row/line number

          Name   : col
          Type   : integer
    Description  : column number

    Returns      : 1 upon success, 0 otherwise

This procedure will position the cursor at a specific line and column as well as adjust the view of the text widget.

## lineno

    Declaration  : proc lineno {tw indx}
    Parameters   :
          Name   : tw
          Type   : text widget
    Description  : text widget name

          Name   : indx
          Type   : text widget index
    Description  : index position of the cursor

    Returns      : line number upon success, 0 otherwise

This procedure will obtain and return the line number corresponding to the index position of the cursor.

## textlines

    Declaration  : proc textlines {tw}
    Parameters   :
          Name   : tw
          Type   : text widget
    Description  : text widget name

    Returns      : total number of lines upon success, 0 otherwise

This procedure will obtain and return the total number of lines in the text widget.

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