This constant determines whether the osOpenQueue function is included or excluded during compilation. The function is compiled if the constant value is set to 1 and excluded if the value is 0.

If this constant is not defined, it defaults to a value of 1, and the function is included in the output binary. If all osOpen* functions are disabled, the system omits object name support, and the code associated with name management is removed. This optimization reduces the final footprint of the output code. For more information regarding object naming and opening procedures, refer to the system objects management section.