controlNull: Difference between revisions

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{{Command|Comments=
{{Command


| arma1 |Game name=
| arma1


|1.00|Game version=
|1.00


|gr1= GUI Control |GROUP1=
|gr1= GUI Control






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


| [[controlNull]] |SYNTAX=
| [[controlNull]]


| [[Control]] |RETURNVALUE=
| [[Control]]


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


|x2= <code>[[controlNull]] == [[controlNull]]; {{cc|returns [[false]]}}
|x2= <code>[[controlNull]] == [[controlNull]]; {{cc|returns [[false]]}}
[[isNull]] [[controlNull]]; {{cc|returns [[true]]}}
[[isNull]] [[controlNull]]; {{cc|returns [[true]]}}
[[controlNull]] [[isEqualTo]] [[controlNull]]; {{cc|returns [[true]]}}</code> |Example2=
[[controlNull]] [[isEqualTo]] [[controlNull]]; {{cc|returns [[true]]}}</code>


|x3= <code>[[str]] [[controlNull]]; {{cc|No control}}</code> |Example3=
|x3= <code>[[str]] [[controlNull]]; {{cc|No control}}</code>


| [[displayNull]], [[grpNull]], [[locationNull]], [[objNull]], [[taskNull]], [[teamMemberNull]], [[scriptNull]], [[configNull]], [[typeName]], [[isNull]] |SEEALSO=
| [[displayNull]], [[grpNull]], [[locationNull]], [[objNull]], [[taskNull]], [[teamMemberNull]], [[scriptNull]], [[configNull]], [[typeName]], [[isNull]]
}}
}}



Revision as of 01:12, 18 January 2021

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 controllNull) 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:
displayNullgrpNulllocationNullobjNulltaskNullteamMemberNullscriptNullconfigNulltypeNameisNull

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

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