FunctionNotFoundException

From REALbasicWiki

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FunctionNotFoundException class
Available on
General
Superclass	RuntimeException
Interfaces	none
Constants
none
Methods
none
Properties
none
Events
none
NOTE: You can get descriptions of the items above from the REALbasic documentation.

A FunctionNotFoundException is raised when a soft-declared external function is called. but cannot be loaded. This happens because either the library cannot be found, or the function cannot be found in the library.

[edit] Discussion

You can test for the availability of a function and library with the function System.IsFunctionAvailable.

[edit] Sample Code

To generate a FunctionNotFoundException, try the following code.

soft declare sub Foo lib "Carbon.framework" ()

Foo

The result should be a FunctionNotFoundException. Its Message property should read "Could not load Foo from Carbon.framework".