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Preventing a library from being run

by Jon Ripley, July 2006, January 2007

To prevent a library from being run add the following code to the start of the library after any initial comment block to generate a syntax error when a user tries to run your library:


To generate a more descriptive error instead add the following code to the start of your library:

        SYS "MessageBox", @hwnd%, "This is a library and cannot be run.", 0, 48

The message appears in a message box and the program will quit when it is dismissed. This necessarily adds 78 bytes to the library, even when added to a compiled program, but ensures that the library will not be executed and alerts users that the library is not an executable program.

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preventing_20a_20library_20from_20being_20run.txt · Last modified: 2018/04/15 18:21 by tbest3112