isNull

1.00

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Description

Description:

Checks whether the tested item is Null.
Which null type the item has to be equal to depends on the type of object tested:

• Objects -> objNull
• Controls -> controlNull
• Displays -> displayNull
• Groups -> grpNull
• Locations -> locationNull (only VBS2)

Note: A test via == does not work, because, for example, objNull is not equal to anything, not even to itself.

Groups:

Uncategorised

Syntax

Syntax:

isNull obj

Parameters:

obj: Object, Control, Display, Group (or Location, for VBS2 1.24 and higher)

Return Value:

Boolean

Examples

Example 1:

if (isNull obj) then {hint "doesn't exist"}

Additional Information

See also:

controlNulldisplayNullgrpNulllocationNull

Notes

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