You can select an element name in your code and quickly navigate to its declaration.
Open declaraion will attempt to navigate to the exact declaraion of the selected element. Open declaration requires your file to have the proper include paths set up to the declaraion. If for any reason open declaraion cannot find the declarion, it will display the following message in the status line:
Navigate to a C or C++ element's
declaration
Searching for C/C++ elements