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<tr style=" font-size:large; border-top:1px solid #999; border-bottom:1px solid #999;">
<th>Function NameSimple Functions</th>
<th> </th>
<td>void iof_end(void)</td>
<td>Shuts down the io routines and ensures that the cursor is not left in the middle of the screen, which may be partly filled with characters. </td>
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<tr>
<td>int iof_rows(void) </td>
<td>Returns the number of rows on the screen. </td>
</tr>
<tr>
<td>int iof_cols(void) </td>
<td>Returns the number of columns on the screen. </td>
</tr>
<tr>
<td>void iof_clrscr(void) </td>
<td>Clears the screen and leaves the cursor in the upper left-hand corner of the screen. </td>
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</table>