BASE.h

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#pragma once
 
#ifdef _INC_WINAPIFAMILY
#   error Windows API detected. Please move any Windows API includes after CommonLib, or remove them.
#endif
 
#define REX_W32_IMPORT(a_ret, a_name, ...)                                            \
    extern "C" __declspec(dllimport) a_ret __stdcall W32_IMPL_##a_name(...) noexcept; \
    __pragma(comment(linker, "/alternatename:__imp_W32_IMPL_" #a_name "=__imp_" #a_name))
 
namespace REX::W32
{
    using BOOL = std::int32_t;
    using HANDLE = void*;
    using HBITMAP = struct HBITMAP__*;
    using HBRUSH = struct HBRUSH__*;
    using HCURSOR = struct HCURSOR__*;
    using HDC = struct HDC__*;
    using HFONT = struct HFONT__*;
    using HICON = struct HICON__*;
    using HINSTANCE = struct HINSTANCE__*;
    using HKEY = struct HKEY__*;
    using HMENU = struct HMENU__*;
    using HMODULE = HINSTANCE;
    using HMONITOR = struct HMONITOR__*;
    using HPALETTE = struct HPALETTE__*;
    using HPEN = struct HPEN__*;
    using HRESULT = std::int32_t;
    using HSTRING = struct HSTRING__*;
    using HWND = struct HWND__*;
 
    // general constants
    inline const auto     INVALID_HANDLE_VALUE{ reinterpret_cast<HANDLE>(static_cast<std::intptr_t>(-1)) };
    inline constexpr auto MAX_PATH{ 260u };
}
 
namespace REX::W32
{
    struct FILETIME
    {
        constexpr FILETIME() noexcept = default;
 
        constexpr FILETIME(std::uint64_t a_value) noexcept
        {
            *this = std::bit_cast<FILETIME>(a_value);
        }
 
        constexpr operator std::uint64_t() const noexcept
        {
            return std::bit_cast<std::uint64_t>(*this);
        }
 
        std::uint32_t lo;  // 00
        std::uint32_t hi;  // 04
    };
    static_assert(sizeof(FILETIME) == 0x8);
}
 
namespace REX::W32
{
    struct GUID
    {
        constexpr GUID() noexcept = default;
 
        constexpr GUID(const std::uint32_t a_data1, std::uint16_t const a_data2, const std::uint16_t a_data3, const std::array<std::uint8_t, 8>& a_data4) noexcept :
            data1(a_data1), data2(a_data2), data3(a_data3), data4{ a_data4[0], a_data4[1], a_data4[2], a_data4[3], a_data4[4], a_data4[5], a_data4[6], a_data4[7] }
        {}
 
        friend bool operator==(const GUID& a_lhs, const GUID& a_rhs) noexcept
        {
            return std::memcmp(&a_lhs, &a_rhs, sizeof(a_lhs)) == 0;
        }
 
        friend bool operator!=(const GUID& a_lhs, const GUID& a_rhs) noexcept
        {
            return !(a_lhs == a_rhs);
        }
 
        std::uint32_t data1;     // 00
        std::uint16_t data2;     // 04
        std::uint16_t data3;     // 08
        std::uint8_t  data4[8];  // 10
    };
    static_assert(sizeof(GUID) == 0x10);
 
    using UUID = GUID;
    using IID = GUID;
}
 
namespace REX::W32
{
    struct POINT
    {
        constexpr POINT() noexcept = default;
 
        constexpr POINT(std::int32_t a_x, std::int32_t a_y) noexcept :
            x(a_x), y(a_y)
        {}
 
        std::int32_t x;  // 00
        std::int32_t y;  // 04
    };
    static_assert(sizeof(POINT) == 0x8);
}
 
namespace REX::W32
{
    struct RECT
    {
        constexpr RECT() noexcept = default;
 
        constexpr RECT(const std::int32_t a_x1, const std::int32_t a_y1, const std::int32_t a_x2, const std::int32_t a_y2) noexcept :
            x1(a_x1), y1(a_y1), x2(a_x2), y2(a_y2)
        {}
 
        std::int32_t x1;  // 00
        std::int32_t y1;  // 04
        std::int32_t x2;  // 08
        std::int32_t y2;  // 10
    };
    static_assert(sizeof(RECT) == 0x10);
}
 
namespace REX::W32
{
    struct SIZE
    {
        std::int32_t x;  // 00
        std::int32_t y;  // 04
    };
    static_assert(sizeof(SIZE) == 0x8);
}
 
namespace REX::W32
{
    struct CRITICAL_SECTION
    {
        void*          debugInfo;       // 00
        std::int32_t   lockCount;       // 08
        std::int32_t   recursionCount;  // 0C
        HANDLE         owningThread;    // 10
        HANDLE         lockSemaphore;   // 18
        std::uintptr_t spinCount;       // 20
    };
    static_assert(sizeof(CRITICAL_SECTION) == 0x28);
 
    struct SECURITY_ATTRIBUTES
    {
        std::uint32_t length;              // 00
        void*         securityDescriptor;  // 04
        BOOL          inheritHandle;       // 0C
    };
    static_assert(sizeof(SECURITY_ATTRIBUTES) == 0x18);
 
    union ULARGE_INTEGER
    {
        struct
        {
            std::uint32_t lo;
            std::uint32_t hi;
        };
        std::uint64_t value;
    };
}