internal.hpp

#if !defined(_BTK_WIN32_INTERNAL_HPP_)
#define _BTK_WIN32_INTERNAL_HPP_
#include <ShlObj.h>
namespace Btk{
namespace Win32{
    template<class T>
    struct ComInstance{
        ComInstance() = default;
        ComInstance(const ComInstance &) = delete;
        ~ComInstance(){
            if(ptr != nullptr){
                ptr->Release();
            }
        }

        T *operator ->(){
            return ptr;
        }
        T **operator &(){
            return &ptr;
        }
        T *ptr = nullptr;
    };
    template<class T>
    struct ComMemPtr{
        ComMemPtr(T *p = nullptr){
            ptr = p;
        }
        ComMemPtr(const ComMemPtr &) = delete;
        ~ComMemPtr(){
            CoTaskMemFree(ptr);
        }
        T *operator ->(){
            return ptr;
        }
        T **operator &(){
            return &ptr;
        }
        operator T*(){
            return ptr;
        }
        T *ptr;
    };
}
}


#endif // _BTK_WIN32_INTERNAL_HPP_