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Syntax
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Not
expression
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Description
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Returns either a logical or binary negation of expression.
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Comments
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The result is determined as shown in the following table:
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If the expression is
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Then the result is
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TRUE
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FALSE
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FALSE
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TRUE
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NULL
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NULL
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Any numeric type
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A binary negation of the number. If the number is an Integer, then an Integer is returned. Otherwise, the expression is first converted to a Long, then a binary negation is performed, returning a Long.
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empty
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Treated as a Long value 0.
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Example
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This example demonstrates the use of the Not operator in comparing logical expressions and for switching a True/False toggle variable.
Const crlf = Chr$(13) + Chr$(10)
Sub Main()
a = False
b = True
If (Not a and b) Then msg1 = "a = False, b = True" & crlf
toggle% = True
msg1 = msg1 & "toggle% is now " & CBool(toggle%) & crlf
toggle% = Not toggle%
msg1 = msg1 & "toggle% is now " & CBool(toggle%) & crlf
toggle% = Not toggle%
msg1 = msg1 & "toggle% is now " & CBool(toggle%)
MsgBox msg1
End Sub
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See Also
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Boolean (data type); Comparison Operators (topic).
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