Function qt_core::q_environment_variable_1a

pub unsafe fn q_environment_variable_1a(
    var_name: *const c_char
) -> CppBox<QString>

This is supported on cpp_lib_version="5.11.3" or cpp_lib_version="5.12.2" or cpp_lib_version="5.13.0" or cpp_lib_version="5.14.0" only.

Calls C++ function: QString qEnvironmentVariable(const char* varName).