IsMissing (function)
Syntax | IsMissing (variable) |
Description | Returns True if variable was passed to the current subroutine or function; returns False if omitted. |
Comments | The IsMissing is used with variant variables passed as optional parameters (using the Optional keyword) to the current subroutine or function. For non-variant variables or variables that were not declared with the Optional keyword, IsMissing will always return True . |
Example |
The following function runs an application and optionally minimizes it. If the optional isMinimize parameter is not specified by the caller, then the application is not minimized.
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See Also | Declare (statement), Sub...End Sub (statement), Function...End Function (statement) |