controlNull: Difference between revisions

Latest revision as of 19:43, 3 September 2024

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

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

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

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@@ Line 24: / Line 24: @@
 |r1= [[Control]]
-|x1= <code>[[if]] (_myCtrl [[isEqualTo]] [[controllNull]]) [[then]] { [[hint]] "_myCtrl is null!"; };</code>
+|x1= <sqf>if (_myCtrl isEqualTo controlNull) then { hint "_myCtrl is null!"; };</sqf>
-|x2= <code>[[controlNull]] == [[controlNull]];			{{cc|returns [[false]]}}
+|x2= <sqf>
-[[isNull]] [[controlNull]];						{{cc|returns [[true]]}}
+controlNull == controlNull;			// returns false
-[[controlNull]] [[isEqualTo]] [[controlNull]];		{{cc|returns [[true]]}}</code>
+isNull controlNull;						// returns true
+controlNull isEqualTo controlNull;		// returns true
+</sqf>
-|x3= <code>[[str]] [[controlNull]]; {{cc|No control}}</code>
+|x3= <sqf>str controlNull; // No control</sqf>
-|seealso= [[displayNull]] [[grpNull]], [[locationNull]], [[objNull]], [[taskNull]], [[teamMemberNull]], [[scriptNull]], [[configNull]], [[typeName]], [[isNull]]
+|seealso= [[displayNull]] [[grpNull]] [[locationNull]] [[objNull]] [[taskNull]] [[teamMemberNull]] [[scriptNull]] [[configNull]] [[typeName]] [[isNull]]
 }}