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 1: / Line 1: @@
-[[Category:Scripting Commands|CONTROLNULL]]
+{{RV|type=command
-[[Category:Scripting Commands ArmA|CONTROLNULL]]
+|game1= arma1
+|version1= 1.00
-<h2 style="color:#000066">''''' controlNull '''''</h2>
+|game2= arma2
+|version2= 1.00
+|game3= arma2oa
+|version3= 1.50
-'''Operand types:'''
+|game4= tkoh
+|version4= 1.00
-None.
+|game5= arma3
+|version5= 0.50
-'''Type of returned value:'''
+|gr1= GUI Control
-[[Control]]
+|descr= A non-existing [[Control]]. To compare non-existent objects use [[isNull]] or [[isEqualTo]] (see examples).
-'''Compatibility:'''
+|s1= [[controlNull]]
-Version 2.92 required.
+|r1= [[Control]]
-'''Description:'''
+|x1= <sqf>if (_myCtrl isEqualTo controlNull) then { hint "_myCtrl is null!"; };</sqf>
-A non-existing control.
+|x2= <sqf>
+controlNull == controlNull;			// returns false
+isNull controlNull;						// returns true
+controlNull isEqualTo controlNull;		// returns true
+</sqf>
-This value is not equal to anything, including itself.
+|x3= <sqf>str controlNull; // No control</sqf>
+|seealso= [[displayNull]] [[grpNull]] [[locationNull]] [[objNull]] [[taskNull]] [[teamMemberNull]] [[scriptNull]] [[configNull]] [[typeName]] [[isNull]]
+}}