View source for $ChkMod

<p>Use the $CHKMOD function after a READ SCREEN or REREAD SCREEN statement to determine whether the terminal operator entered data for any full-screen input fields or for a specific input field. See a discussion of the full-screen feature in [[Full-screen feature#Full-screen processing|Full-screen processing]].       </p>
<b>Syntax</b>
<p>The format of the $CHKMOD function is:</p>
<p class="code">$CHKMOD (screenname <var>[</var>, inputname<var>]</var>) 
</p>

<ul>
<li>Both the screenname and inputname arguments are expected to be string expressions and can include quoted strings, %variables, field names, or functions. </li>
<p>If screenname and/or inputname are quoted strings, the name must be enclosed in single quotation marks:</p>
<p class="code">$CHKMOD ('EMPSCRN', 'NAME') 
</p></li>

<li>If inputname (representing an input field on the specified screen) is not included in the function call, $CHKMOD returns the number of input fields for which the terminal operator entered data. </li>
<p>If inputname is specified, $CHKMOD returns a value of 0 if the input field was not modified. $CHKMOD returns a value of 1 if the field was modified.   </p>
</li>
</ul>

[[Category:SOUL $functions]]