controlNull: Difference between revisions

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{{Command|Comments=
{{RV|type=command


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


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


|gr1= GUI Control |GROUP1=
|game3= arma2oa
|version3= 1.50


|game4= tkoh
|version4= 1.00


|game5= arma3
|version5= 0.50


| A non-existing [[Control]]. To compare non-existent objects use [[isNull]] or [[isEqualTo]] (see examples). |DESCRIPTION=
|gr1= GUI Control


| [[controlNull]] |SYNTAX=
|descr= A non-existing [[Control]]. To compare non-existent objects use [[isNull]] or [[isEqualTo]] (see examples).


| [[Control]] |RETURNVALUE=
|s1= [[controlNull]]


|x1= <code>[[if]] (_myCtrl [[isEqualTo]] [[controllNull]]) [[then]] { [[hint]] "_myCtrl is null!"; };</code> |Example1=
|r1= [[Control]]


|x2= <code>[[controlNull]] == [[controlNull]]; {{cc|returns [[false]]}}
|x1= <sqf>if (_myCtrl isEqualTo controlNull) then { hint "_myCtrl is null!"; };</sqf>
[[isNull]] [[controlNull]]; {{cc|returns [[true]]}}
[[controlNull]] [[isEqualTo]] [[controlNull]]; {{cc|returns [[true]]}}</code> |Example2=


|x3= <code>[[str]] [[controlNull]]; {{cc|No control}}</code> |Example3=
|x2= <sqf>controlNull == controlNull; // returns false
isNull controlNull; // returns true
controlNull isEqualTo controlNull; // returns true</sqf>


| [[displayNull]], [[grpNull]], [[locationNull]], [[objNull]], [[taskNull]], [[teamMemberNull]], [[scriptNull]], [[configNull]], [[typeName]], [[isNull]] |SEEALSO=
|x3= <sqf>str controlNull; // No control</sqf>
 
|seealso= [[displayNull]] [[grpNull]] [[locationNull]] [[objNull]] [[taskNull]] [[teamMemberNull]] [[scriptNull]] [[configNull]] [[typeName]] [[isNull]]
}}
}}
<h3 style="display:none">Notes</h3>
<dl class="command_description">
<!-- Note Section BEGIN -->
<!-- Note Section END -->
</dl>
<h3 style="display:none">Bottom Section</h3>
[[Category:Scripting Commands|{{uc:{{PAGENAME}}}}]]
{{GameCategory|arma1|Scripting Commands}}
{{GameCategory|arma2|Scripting Commands}}
{{GameCategory|arma3|Scripting Commands}}
{{GameCategory|tkoh|Scripting Commands}}

Latest revision as of 17:37, 8 July 2023

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=341933"