CursorItemId (Screen function): Difference between revisions
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{{Template:Screen:CursorItemId subtitle}} | {{Template:Screen:CursorItemId subtitle}} | ||
<var>CursorItemId</var> is a | <var>CursorItemId</var> is a [[Notation_conventions_for_methods#Callable_methods|callable]] function that returns the numeric item ID of the <var>[[Screen classes#Screens and ScreenFields|ScreenField]]</var> where the cursor is currently located. A <var>ScreenField</var> is assigned an item ID either when it is instantiated by the <var>[[AddField_(Screen_function)|AddField]]</var> method, or if it is (re-)specified with the <var>[[Itemid_(ScreenField_property)|Itemid]]</var> method. | ||
==Syntax== | ==Syntax== | ||
{{Template:Screen:CursorItemId syntax}} | {{Template:Screen:CursorItemId syntax}} | ||
===Syntax terms=== | ===Syntax terms=== | ||
<table class="syntaxTable"> | <table class="syntaxTable"> | ||
<tr><th | <tr><th>%num</th> | ||
<td>A numeric variable to contain the returned item ID. If no item ID was assigned to the <var>screenField</var>, zero is returned. </td></tr> | <td>A numeric variable to contain the returned item ID. If no item ID was assigned to the <var>screenField</var>, zero is returned. </td></tr> | ||
<tr><th | |||
<tr><th>screen</th> | |||
<td>A reference to an instance of a <var>Screen</var> object.</td></tr> | <td>A reference to an instance of a <var>Screen</var> object.</td></tr> | ||
</table> | </table> | ||
Latest revision as of 22:38, 16 November 2012
Return the item ID of field at the cursor position (Screen class)
CursorItemId is a callable function that returns the numeric item ID of the ScreenField where the cursor is currently located. A ScreenField is assigned an item ID either when it is instantiated by the AddField method, or if it is (re-)specified with the Itemid method.
Syntax
[%number =] screen:CursorItemId
Syntax terms
| %num | A numeric variable to contain the returned item ID. If no item ID was assigned to the screenField, zero is returned. |
|---|---|
| screen | A reference to an instance of a Screen object. |