member function pointers and inheritance

Question

So i\'m working on a simple win32 wrapper for my own convenience, and i\'ve run into a slightly complicated problem.

this has alot of other members, but i\'m omittin

Answer 1

You should read up on the Curiously Recurring Template Pattern (http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern).

Basically, you turn your base class into a template with a template parameter that specifies the sub-class.

Perhaps it'll be easier to understand if you see it:

namespace Windows
{
     template 
     class AbstractWindow
     {
     public:
          void InstallHandler(UINT msgName, void (T::*)(HWND, UINT, WPARAM, LPARAM));

     private:
          std::map HandlerIndex;

     };
}

class BasicWindow : public Windows::AbstractWindow< BasicWindow >
{
public:
    BasicWindow() 
    {
         InstallHandler(WM_CREATE, &BasicWindow::Create);
    }

private:
    void Create(HWND, UINT, WPARAM, LPARAM) {}
};