Get the address of the procedure / function of another process

I am writing a program that displays a list of all open processes.

Using a similar program (Process Explorer), I see a list of threads with some information, such as "Thread ID", "Priority", "Start Address", etc.

I can also get all this information, but in the Process Explorer window, display the start address as follows:

ModuleName!ProcedureName+$1111

How can I get ProcedureNamewithout a dll to use GetProcAddress?