Emits the specified string, without the quote characters, into the generated .idl file.
The cpp_quote C++ attribute is useful if you want to put a preprocessor directive in an .idl file.
You can also use cpp_quote and generate an .h file as part of the MIDL compilation. For example, if you have a C++ header file that uses C++ IDL attributes but cannot use this file for some task, then you can compile it to create a MIDL-generated .h file, which you should be able to use.
The cpp_quote attribute has the same functionality as the cpp_quote MIDL attribute.
For more information about the attribute contexts, see Attribute Contexts.