SetCursor (ScreenField subroutine): Difference between revisions

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==Syntax==
==Syntax==
{{Template:ScreenField:SetCursor syntax}}
{{Template:ScreenField:SetCursor syntax}}
===Syntax terms===
===Syntax terms===
<table class="syntaxTable">
<table class="syntaxTable">
<tr><th>%sfield</th>
<tr><th>sfield</th>
<td>A reference to an instance of a <var>ScreenField</var> object.
<td>A reference to an instance of a <var>ScreenField</var> object.
<tr><th>position</th>
<tr><th>position</th>
<td>A positive integral value that specifies the relative position within the <var class="term">%sfield</var> object, where position 1 is the first position in the field and the maximum width was set by the <var>[[Screen class#AddField function|AddField]]</var> method.</td></tr>
<td>A positive integral value that specifies the relative position within the <var class="term">sfield</var> object, where position 1 is the first position in the field, and the maximum width was set by the <var>[[AddField_(Screen_function)|AddField]]</var> method.</td></tr>
</table>
</table>


==Usage notes==
==Usage notes==
<ul><li>
<ul>
If the position exceeds the maximum width of the field, the request is canceled.
<li>If the <var class="term">position</var> value exceeds the maximum width of the field, the request is canceled.
</ul>
</ul>


==Examples==
==Examples==
<oL><li>The following sequence sets the cursor on an unprotected screenfield immediately to the right of a field with a protected <code>===></code> command prompt:
The following sequence sets the cursor on an unprotected screenfield immediately to the right of a field with a protected <code>===></code> command prompt:
<p class="code">   ...
<p class="code"> ...
  %scr is object screen
%scr is object screen
  %prompt is object screenField
%prompt is object screenField
  %cmd is object screenField
%cmd is object screenField
  %prompt = %scr:<var>addField</var>(row=2, color=white, -
 
  value='===>')
%prompt = %scr:<var>addField</var>(row=2, color=white, value='===>')
</p></ol>
%cmd = %scr:<var>addField</var>(protected=false, -
            width=%scr:columns - 15, color=green)
%cmd:setcursor
...
</p>


==See also==
==See also==
{{Template:ScreenField:SetCursor footer}}
{{Template:ScreenField:SetCursor footer}}

Latest revision as of 20:07, 20 November 2012

Set or return the value of a screenfield (ScreenField class)

The SetCursor method positions the cursor at the beginning of the referenced ScreenField object. An optional numeric argument positions the cursor within the field.

Syntax

sfield:SetCursor[( [position])]

Syntax terms

sfield A reference to an instance of a ScreenField object.
position A positive integral value that specifies the relative position within the sfield object, where position 1 is the first position in the field, and the maximum width was set by the AddField method.

Usage notes

  • If the position value exceeds the maximum width of the field, the request is canceled.

Examples

The following sequence sets the cursor on an unprotected screenfield immediately to the right of a field with a protected ===> command prompt:

... %scr is object screen %prompt is object screenField %cmd is object screenField %prompt = %scr:addField(row=2, color=white, value='===>') %cmd = %scr:addField(protected=false, - width=%scr:columns - 15, color=green) %cmd:setcursor ...

See also