controlNull: Difference between revisions

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m (Text replacement - "|= Game version" to "|Game version=")
m (Text replacement - "<sqf>([^↵][^<]*↵[^<]*)<\/sqf>" to "<sqf> $1 </sqf>")
 
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{{Command|Comments=
{{RV|type=command
____________________________________________________________________________________________


| arma |Game name=
|game1= arma1
|version1= 1.00


|1.00|Game version=
|game2= arma2
____________________________________________________________________________________________
|version2= 1.00


| A non-existing [[Control]]. To compare non-existent objects use [[isNull]] or [[isEqualTo]]:
|game3= arma2oa
* <tt>[[controlNull]] <nowiki>==</nowiki> [[controlNull]]; // false</tt>
|version3= 1.50
* <tt>[[isNull]] [[controlNull]]; // true</tt>
* <tt>[[controlNull]] [[isEqualTo]] [[controlNull]]; // true</tt> |DESCRIPTION=
____________________________________________________________________________________________


| '''controlNull''' |SYNTAX=
|game4= tkoh
|version4= 1.00


| [[Control]] |RETURNVALUE=
|game5= arma3
|version5= 0.50


| x1 = <code>![[isNull]] [[controlNull]]; // false</code> |=
|gr1= GUI Control
| x2 = <code>[[str]] [[controlNull]]; // No control</code> |=
____________________________________________________________________________________________


| [[displayNull]], [[grpNull]], [[locationNull]], [[objNull]], [[taskNull]], [[teamMemberNull]], [[scriptNull]], [[configNull]], [[typeName]], [[isNull]] |SEEALSO=
|descr= A non-existing [[Control]]. To compare non-existent objects use [[isNull]] or [[isEqualTo]] (see examples).


}}
|s1= [[controlNull]]
 
|r1= [[Control]]


<h3 style="display:none">Notes</h3>
|x1= <sqf>if (_myCtrl isEqualTo controlNull) then { hint "_myCtrl is null!"; };</sqf>
<dl class="command_description">
<!-- Note Section BEGIN -->


<!-- Note Section END -->
|x2= <sqf>
</dl>
controlNull == controlNull; // returns false
isNull controlNull; // returns true
controlNull isEqualTo controlNull; // returns true
</sqf>


<h3 style="display:none">Bottom Section</h3>
|x3= <sqf>str controlNull; // No control</sqf>


[[Category:Scripting Commands|CONTROLNULL]]
|seealso= [[displayNull]] [[grpNull]] [[locationNull]] [[objNull]] [[taskNull]] [[teamMemberNull]] [[scriptNull]] [[configNull]] [[typeName]] [[isNull]]
[[Category:Scripting Commands ArmA|CONTROLNULL]]
}}
[[Category:Command_Group:_Variables|{{uc:{{PAGENAME}}}}]]
[[Category:Command_Group:_GUI_Control|{{uc:{{PAGENAME}}}}]]
[[Category:Scripting Commands ArmA2|{{uc:{{PAGENAME}}}}]]
[[Category:Scripting Commands Arma 3|{{uc:{{PAGENAME}}}}]]
[[Category:Scripting_Commands_Take_On_Helicopters|{{uc:{{PAGENAME}}}}]]

Latest revision as of 19:43, 3 September 2024

Logo A1 black.png1.00Logo A2.png1.00A2 OA Logo.png1.50tkoh logo small.png1.00Arma 3 logo black.png0.50
Hover & click on the images for description

Description

Description:
A non-existing Control. To compare non-existent objects use isNull or isEqualTo (see examples).
Groups:
GUI Control

Syntax

Syntax:
controlNull
Return Value:
Control

Examples

Example 1:
if (_myCtrl isEqualTo controlNull) then { hint "_myCtrl is null!"; };
Example 2:
controlNull == controlNull; // returns false isNull controlNull; // returns true controlNull isEqualTo controlNull; // returns true
Example 3:
str controlNull; // No control

Additional Information

See also:
displayNull grpNull locationNull objNull taskNull teamMemberNull scriptNull configNull typeName isNull

Notes

Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note
Retrieved from "https://community.bistudio.com/wiki?title=controlNull&oldid=369405"