dll.hpp

#ifndef LIBFILEZILLA_GLUE_DLL_HEADER
#define LIBFILEZILLA_GLUE_DLL_HEADER
 
#include "../libfilezilla.hpp"
 
#ifdef FZ_WINDOWS
 
#include "./windows.hpp"
 
namespace fz {
 
class FZ_PUBLIC_SYMBOL dll final
{
public:
    explicit dll(wchar_t const* name, DWORD flags)
    {
        h_ = LoadLibraryExW(name, nullptr, flags);
    }
 
    ~dll() {
        if (h_) {
            FreeLibrary(h_);
        }
    }
 
    dll(dll const&) = delete;
    dll& operator=(dll const&) = delete;
 
    explicit operator bool() const {
        return h_ != nullptr;
    }
 
    void *operator[](char const *name) {
        return h_ ? reinterpret_cast<void*>(::GetProcAddress(h_, name)) : nullptr;
    }
 
private:
    HMODULE h_{};
};
 
class FZ_PUBLIC_SYMBOL shdlls final
{
protected:
    shdlls();
    ~shdlls();
 
    shdlls(shdlls const&) = delete;
    shdlls* operator=(shdlls const&) = delete;
 
public:
    static shdlls& get();
 
    dll shell32_; 
    dll ole32_;   
};
 
}
 
#else
#error This file is for Windows only
#endif
 
#endif