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How do you define optional parameters in VBA?
Optional parameters are indicated by the Optional keyword in the procedure definition. The following rules apply: Every optional parameter in the procedure definition must specify a default value. The default value for an optional parameter must be a constant expression.
How do you indicate an optional parameter?
To indicate optional arguments, Square brackets are commonly used, and can also be used to group parameters that must be specified together. To indicate required arguments, Angled brackets are commonly used, following the same grouping conventions as square brackets.
What are the differences between mandatory parameters and optional parameters?
A mandatory parameter must be explicitly given on the command-line, otherwise an error message will be printed to prompt the user to re-enter the command. If an optional parameter is not specified, the default is used.
What are the rules for an optional parameter?
The following rules apply: Every optional parameter in the procedure definition must specify a default value. The default value for an optional parameter must be a constant expression. Every parameter following an optional parameter in the procedure definition must also be optional. The following syntax shows a procedure declaration
How to check optional parameters in Microsoft Office?
The following procedure defines the optional parameter office, and tests for its default value, QJZ, to see if it has been omitted in the call:
Are there any optional parameters for C + + macros?
So to answer your question: no, those features don’t exist for macros. Your only option is to define multiple macros with different names (or not use macros at all). As a sidenote: In C++ it’s generally considered good practice to move away from macros as much as possible.
Which is the optional parameter in vb.sub?
Every parameter following an optional parameter in the procedure definition must also be optional. The following syntax shows a procedure declaration with an optional parameter: VB. Sub name (ByVal parameter1 As datatype1, Optional ByVal parameter2 As datatype2 = defaultvalue)