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Tip of the Day
Language: Visual Basic
Expertise: Beginner
Aug 6, 1997

New Declarations Possibilities For VB4

Add Optional parameters to your procedure calls. Both Functions and subs can now use the Optional keyword in the declaration to indicate that the following parameter is optional:
 
Function mfbCheckDBStatus(Optional _
	vroTest As Variant) As Boolean
This function can also be called without the parameter:
 mfbCheckDBStatus
If you need to check for the existence of an optional parameter, use the IsMissing function to test the parameter.
Crescent Tech
 
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