DLL needs to access the symbols of your application

Question

In C ++, is it possible for a DLL to access some symbols of a loaded application? I have an application that loads plugins (dll), and these plugins need to access some application API.

Is it possible to achieve this without creating a new DLL sharing this API?

Is the structure of function pointers appropriate in this situation?

Example

: the bool Log (char *) function defined in the host application and the plugin that should log some events.

Answer 1

Another vote for passing the callback interface to the pluggable DLL. That is, the callback interface ...

class IHostApplication
  {
  public:
    virtual bool Log(const wchar_t* ip_log_string) = 0;
  };

DLL

class IPlugin
  {
  public:
    virtual void InitializePlugin(IHostApplication *ip_host) = 0;
  };

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Answer 2

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Answer 3

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