diff --git a/.nuget/DirectXTex-config.cmake.in b/.nuget/DirectXTex-config.cmake.in
index ccb9250..2538e16 100644
--- a/.nuget/DirectXTex-config.cmake.in
+++ b/.nuget/DirectXTex-config.cmake.in
@@ -8,7 +8,7 @@ if(ENABLE_OPENEXR_SUPPORT)
     find_dependency(OpenEXR)
 endif()
 
-if((NOT WIN32) OR VCPKG_TOOLCHAIN)
+if(MINGW OR (NOT WIN32) OR VCPKG_TOOLCHAIN)
     find_dependency(directx-headers CONFIG)
     find_dependency(directxmath CONFIG)
 endif()
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 796d6d5..56c395e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -156,7 +156,7 @@ if(ENABLE_OPENEXR_SUPPORT)
   target_include_directories(${PROJECT_NAME} PRIVATE ${OPENEXR_INCLUDE_DIRS}/OpenEXR)
 endif()
 
-if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.16")
+if ((${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.16") AND (NOT MINGW))
     target_precompile_headers(${PROJECT_NAME} PRIVATE DirectXTex/DirectXTexP.h)
 endif()
 
@@ -172,7 +172,7 @@ if(MSVC)
     string(REPLACE "/GR " "/GR- " CMAKE_CXX_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELEASE})
 endif()
 
-if ((NOT WIN32) OR VCPKG_TOOLCHAIN)
+if (MINGW OR (NOT WIN32) OR VCPKG_TOOLCHAIN)
     message("INFO: Using VCPKG for DirectX-Headers and DirectXMath.")
     find_package(directx-headers CONFIG REQUIRED)
     find_package(directxmath CONFIG REQUIRED)
@@ -268,7 +268,7 @@ if(BUILD_SAMPLE AND BUILD_DX11 AND WIN32 AND (NOT WINDOWS_STORE))
   endif()
 endif()
 
-if ((NOT WIN32) OR VCPKG_TOOLCHAIN)
+if (MINGW OR (NOT WIN32) OR VCPKG_TOOLCHAIN)
   foreach(t IN LISTS TOOL_EXES)
     target_link_libraries(${t} Microsoft::DirectXMath)
   endforeach()
@@ -282,12 +282,23 @@ if(MSVC)
 
     if((${CMAKE_SIZEOF_VOID_P} EQUAL 4) AND (NOT ${DIRECTX_ARCH} MATCHES "^arm"))
         foreach(t IN LISTS TOOL_EXES ITEMS ${PROJECT_NAME})
-          target_compile_options(${t} PRIVATE /arch:SSE2)
           target_link_options(${t} PRIVATE /SAFESEH)
         endforeach()
     endif()
 endif()
 
+if(NOT ${DIRECTX_ARCH} MATCHES "^arm")
+    if (${CMAKE_SIZEOF_VOID_P} EQUAL "4")
+        set(ARCH_SSE2 $<$<CXX_COMPILER_ID:MSVC>:/arch:SSE2> $<$<NOT:$<CXX_COMPILER_ID:MSVC>>:-msse2>)
+    else()
+        set(ARCH_SSE2 $<$<NOT:$<CXX_COMPILER_ID:MSVC>>:-msse2>)
+    endif()
+
+    foreach(t IN LISTS TOOL_EXES ITEMS ${PROJECT_NAME})
+      target_compile_options(${t} PRIVATE ${ARCH_SSE2})
+    endforeach()
+endif()
+
 if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     set(WarningsLib "-Wpedantic" "-Wextra")
     target_compile_options(${PROJECT_NAME} PRIVATE ${WarningsLib})
@@ -299,6 +310,12 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
       target_compile_options(${t} PRIVATE ${WarningsEXE})
     endforeach()
 endif()
+if(MINGW)
+    foreach(t IN LISTS TOOL_EXES ITEMS ${PROJECT_NAME})
+      target_compile_options(${t} PRIVATE -Wno-ignored-attributes)
+      target_link_options(${t} PRIVATE -municode)
+    endforeach()
+endif()
 if (CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
     foreach(t IN LISTS TOOL_EXES ITEMS ${PROJECT_NAME})
       target_compile_options(${t} PRIVATE /sdl /permissive- /JMC- /Zc:__cplusplus)
diff --git a/CMakePresets.json b/CMakePresets.json
index d77c18e..16e821e 100644
--- a/CMakePresets.json
+++ b/CMakePresets.json
@@ -81,6 +81,17 @@
         "strategy": "external"
       }
     },
+    {
+      "name": "GNUC",
+      "hidden": true,
+      "cacheVariables": {
+        "CMAKE_CXX_COMPILER": "g++.exe"
+      },
+      "toolset": {
+        "value": "host=x64",
+        "strategy": "external"
+      }
+    },
 
     {
       "name": "Win7",
@@ -151,9 +162,14 @@
     { "name": "arm64-Debug-UWP-Clang"  , "description": "Clang/LLVM for AArch64 (Debug) for UWP", "inherits": [ "base", "ARM64", "Debug", "Clang", "UWP" ], "environment": { "CXXFLAGS": "--target=arm64-pc-windows-msvc" } },
     { "name": "arm64-Release-UWP-Clang", "description": "Clang/LLVM for AArch64 (Release) for UWP", "inherits": [ "base", "ARM64", "Release", "Clang", "UWP" ], "environment": { "CXXFLAGS": "--target=arm64-pc-windows-msvc" } },
 
-    { "name": "x64-Debug-Win7-Clang"    , "description": "Clang/LLVM for x64 (Debug) for Windows 7", "inherits": [ "base", "x64", "Debug", "Clang", "Win7" ] },
-    { "name": "x64-Release-Win7-Clang"  , "description": "Clang/LLVM for x64 (Release) for Windows 7", "inherits": [ "base", "x64", "Release", "Clang", "Win7" ] },
-    { "name": "x86-Debug-Win7-Clang"    , "description": "Clang/LLVM for x86 (Debug) for Windows 7", "inherits": [ "base", "x86", "Debug", "Clang", "Win7" ], "environment": { "CXXFLAGS": "-m32" } },
-    { "name": "x86-Release-Win7-Clang"  , "description": "Clang/LLVM for x86 (Release) for Windows 7", "inherits": [ "base", "x86", "Release", "Clang", "Win7" ], "environment": { "CXXFLAGS": "-m32" } }
+    { "name": "x64-Debug-Win7-Clang"  , "description": "Clang/LLVM for x64 (Debug) for Windows 7", "inherits": [ "base", "x64", "Debug", "Clang", "Win7" ] },
+    { "name": "x64-Release-Win7-Clang", "description": "Clang/LLVM for x64 (Release) for Windows 7", "inherits": [ "base", "x64", "Release", "Clang", "Win7" ] },
+    { "name": "x86-Debug-Win7-Clang"  , "description": "Clang/LLVM for x86 (Debug) for Windows 7", "inherits": [ "base", "x86", "Debug", "Clang", "Win7" ], "environment": { "CXXFLAGS": "-m32" } },
+    { "name": "x86-Release-Win7-Clang", "description": "Clang/LLVM for x86 (Release) for Windows 7", "inherits": [ "base", "x86", "Release", "Clang", "Win7" ], "environment": { "CXXFLAGS": "-m32" } },
+
+    { "name": "x64-Debug-MinGW"  , "description": "MinG-W64 (Debug)", "inherits": [ "base", "x64", "Debug", "GNUC", "VCPKG" ], "environment": { "PATH": "$penv{PATH};c:/mingw64/bin" } },
+    { "name": "x64-Release-MinGW", "description": "MinG-W64 (Release)", "inherits": [ "base", "x64", "Release", "GNUC", "VCPKG" ], "environment": { "PATH": "$penv{PATH};c:/mingw64/bin" } },
+    { "name": "x86-Debug-MinGW"  , "description": "MinG-W32 (Debug)", "inherits": [ "base", "x86", "Debug", "GNUC", "VCPKG" ], "environment": { "PATH": "$penv{PATH};c:/mingw32/bin" } },
+    { "name": "x86-Release-MinGW", "description": "MinG-W32 (Release)", "inherits": [ "base", "x86", "Release", "GNUC", "VCPKG" ], "environment": { "PATH": "$penv{PATH};c:/mingw32/bin" } }
   ]
 }
\ No newline at end of file
diff --git a/DDSTextureLoader/DDSTextureLoader11.cpp b/DDSTextureLoader/DDSTextureLoader11.cpp
index 1cc1026..3bff94a 100644
--- a/DDSTextureLoader/DDSTextureLoader11.cpp
+++ b/DDSTextureLoader/DDSTextureLoader11.cpp
@@ -135,16 +135,18 @@ namespace
 
     inline HANDLE safe_handle(HANDLE h) noexcept { return (h == INVALID_HANDLE_VALUE) ? nullptr : h; }
 
+    #if defined(_DEBUG) || defined(PROFILE)
     template<UINT TNameLength>
     inline void SetDebugObjectName(_In_ ID3D11DeviceChild* resource, _In_ const char(&name)[TNameLength]) noexcept
     {
-    #if defined(_DEBUG) || defined(PROFILE)
         resource->SetPrivateData(WKPDID_D3DDebugObjectName, TNameLength - 1, name);
-    #else
-        UNREFERENCED_PARAMETER(resource);
-        UNREFERENCED_PARAMETER(name);
-    #endif
     }
+    #else
+    template<UINT TNameLength>
+    inline void SetDebugObjectName(_In_ ID3D11DeviceChild*, _In_ const char(&)[TNameLength]) noexcept
+    {
+    }
+    #endif
 
     //--------------------------------------------------------------------------------------
     HRESULT LoadTextureDataFromMemory(
diff --git a/DDSTextureLoader/DDSTextureLoader12.cpp b/DDSTextureLoader/DDSTextureLoader12.cpp
index f82fdf1..f7af781 100644
--- a/DDSTextureLoader/DDSTextureLoader12.cpp
+++ b/DDSTextureLoader/DDSTextureLoader12.cpp
@@ -21,7 +21,7 @@
 #include <memory>
 #include <new>
 
-#ifndef WIN32
+#ifndef _WIN32
 #include <fstream>
 #include <filesystem>
 #endif
@@ -47,10 +47,10 @@
 
 #define D3DX12_NO_STATE_OBJECT_HELPERS
 #define D3DX12_NO_CHECK_FEATURE_SUPPORT_CLASS
-#ifdef WIN32
-#include "d3dx12.h"
-#else
+#if !defined(_WIN32) || defined(USING_DIRECTX_HEADERS)
 #include "directx/d3dx12.h"
+#else
+#include "d3dx12.h"
 #endif
 
 using namespace DirectX;
@@ -157,7 +157,7 @@ struct DDS_HEADER_DXT10
 //--------------------------------------------------------------------------------------
 namespace
 {
-#ifdef WIN32
+#ifdef _WIN32
     struct handle_closer { void operator()(HANDLE h) noexcept { if (h) CloseHandle(h); } };
 
     using ScopedHandle = std::unique_ptr<void, handle_closer>;
@@ -165,16 +165,18 @@ namespace
     inline HANDLE safe_handle(HANDLE h) noexcept { return (h == INVALID_HANDLE_VALUE) ? nullptr : h; }
 #endif
 
+    #if !defined(NO_D3D12_DEBUG_NAME) && ( defined(_DEBUG) || defined(PROFILE) )
     template<UINT TNameLength>
     inline void SetDebugObjectName(_In_ ID3D12DeviceChild* resource, _In_z_ const wchar_t(&name)[TNameLength]) noexcept
     {
-    #if !defined(NO_D3D12_DEBUG_NAME) && ( defined(_DEBUG) || defined(PROFILE) )
         resource->SetName(name);
-    #else
-        UNREFERENCED_PARAMETER(resource);
-        UNREFERENCED_PARAMETER(name);
-    #endif
     }
+    #else
+    template<UINT TNameLength>
+    inline void SetDebugObjectName(_In_ ID3D12DeviceChild*, _In_z_ const wchar_t(&)[TNameLength]) noexcept
+    {
+    }
+    #endif
 
     inline uint32_t CountMips(uint32_t width, uint32_t height) noexcept
     {
@@ -274,7 +276,7 @@ namespace
 
         *bitSize = 0;
 
-    #ifdef WIN32
+    #ifdef _WIN32
             // open the file
         ScopedHandle hFile(safe_handle(CreateFile2(fileName,
             GENERIC_READ,
diff --git a/DDSTextureLoader/DDSTextureLoader12.h b/DDSTextureLoader/DDSTextureLoader12.h
index 4806277..d6c5dc9 100644
--- a/DDSTextureLoader/DDSTextureLoader12.h
+++ b/DDSTextureLoader/DDSTextureLoader12.h
@@ -16,13 +16,21 @@
 
 #pragma once
 
-#if defined(WIN32) || defined(_WIN32)
-#include <d3d12.h>
-#pragma comment(lib,"dxguid.lib")
-#else
+#ifdef __MINGW32__
+#include <unknwn.h>
+#endif
+
+#ifndef _WIN32
 #include <wsl/winadapter.h>
 #include <wsl/wrladapter.h>
+#endif
+
+#if !defined(_WIN32) || defined(USING_DIRECTX_HEADERS)
 #include <directx/d3d12.h>
+#include <dxguids/dxguids.h>
+#else
+#include <d3d12.h>
+#pragma comment(lib,"dxguid.lib")
 #endif
 
 #include <cstddef>
diff --git a/DDSView/ddsview.cpp b/DDSView/ddsview.cpp
index 49f5a45..7a1755b 100644
--- a/DDSView/ddsview.cpp
+++ b/DDSView/ddsview.cpp
@@ -448,12 +448,7 @@ HRESULT InitDevice(const TexMetadata& mdata)
     g_pImmediateContext->OMSetRenderTargets(1, &g_pRenderTargetView, g_pDepthStencilView);
 
     // Setup the viewport
-    D3D11_VIEWPORT vp = {};
-    vp.TopLeftX = vp.TopLeftY = 0.f;
-    vp.Width = static_cast<float>(width);
-    vp.Height = static_cast<float>(height);
-    vp.MinDepth = D3D11_MIN_DEPTH;
-    vp.MaxDepth = D3D11_MAX_DEPTH;
+    const D3D11_VIEWPORT vp = { 0.f, 0.f, static_cast<float>(width), static_cast<float>(height), 0.f, 1.f };
     g_pImmediateContext->RSSetViewports(1, &vp);
 
     // Create the vertex shader
diff --git a/DirectXTex/DirectXTex.h b/DirectXTex/DirectXTex.h
index d9205e7..5d8a160 100644
--- a/DirectXTex/DirectXTex.h
+++ b/DirectXTex/DirectXTex.h
@@ -17,7 +17,7 @@
 #include <utility>
 #include <vector>
 
-#if defined(WIN32) || defined(_WIN32)
+#ifdef _WIN32
 #if !defined(__d3d11_h__) && !defined(__d3d11_x_h__) && !defined(__d3d12_h__) && !defined(__d3d12_x_h__) && !defined(__XBOX_D3D12_X__)
 #ifdef _GAMING_XBOX_SCARLETT
 #include <d3d12_xs.h>
@@ -36,8 +36,8 @@
 
 #include <DirectXMath.h>
 
-#ifdef WIN32
-#ifdef NTDDI_WIN10_FE
+#ifdef _WIN32
+#if defined(NTDDI_WIN10_FE) || defined(__MINGW32__)
 #include <ocidl.h>
 #else
 #include <OCIdl.h>
@@ -315,7 +315,7 @@ namespace DirectX
         _In_ TGA_FLAGS flags,
         _Out_ TexMetadata& metadata) noexcept;
 
-#ifdef WIN32
+#ifdef _WIN32
     HRESULT __cdecl GetMetadataFromWICMemory(
         _In_reads_bytes_(size) const void* pSource, _In_ size_t size,
         _In_ WIC_FLAGS flags,
@@ -486,7 +486,7 @@ namespace DirectX
         _In_z_ const wchar_t* szFile, _In_opt_ const TexMetadata* metadata = nullptr) noexcept;
 
     // WIC operations
-#ifdef WIN32
+#ifdef _WIN32
     HRESULT __cdecl LoadFromWICMemory(
         _In_reads_bytes_(size) const void* pSource, _In_ size_t size,
         _In_ WIC_FLAGS flags,
@@ -542,7 +542,7 @@ namespace DirectX
         TEX_FR_FLIP_VERTICAL = 0x10,
     };
 
-#ifdef WIN32
+#ifdef _WIN32
     HRESULT __cdecl FlipRotate(_In_ const Image& srcImage, _In_ TEX_FR_FLAGS flags, _Out_ ScratchImage& image) noexcept;
     HRESULT __cdecl FlipRotate(
         _In_reads_(nimages) const Image* srcImages, _In_ size_t nimages, _In_ const TexMetadata& metadata,
@@ -828,7 +828,7 @@ namespace DirectX
 
     //---------------------------------------------------------------------------------
     // WIC utility code
-#ifdef WIN32
+#ifdef _WIN32
     enum WICCodecs
     {
         WIC_CODEC_BMP = 1,          // Windows Bitmap (.bmp)
diff --git a/DirectXTex/DirectXTexConvert.cpp b/DirectXTex/DirectXTexConvert.cpp
index d39e6a1..4e1069f 100644
--- a/DirectXTex/DirectXTexConvert.cpp
+++ b/DirectXTex/DirectXTexConvert.cpp
@@ -4394,7 +4394,7 @@ namespace
         _Out_ WICPixelFormatGUID& pfGUID,
         _Out_ WICPixelFormatGUID& targetGUID) noexcept
     {
-    #ifndef WIN32
+    #ifndef _WIN32
         UNREFERENCED_PARAMETER(filter);
         UNREFERENCED_PARAMETER(sformat);
         UNREFERENCED_PARAMETER(tformat);
@@ -4557,7 +4557,7 @@ namespace
         _In_ float threshold,
         _In_ const Image& destImage)
     {
-    #ifndef WIN32
+    #ifndef _WIN32
         UNREFERENCED_PARAMETER(srcImage);
         UNREFERENCED_PARAMETER(pfGUID);
         UNREFERENCED_PARAMETER(targetGUID);
diff --git a/DirectXTex/DirectXTexD3D12.cpp b/DirectXTex/DirectXTexD3D12.cpp
index 81a0eeb..9ebbee5 100644
--- a/DirectXTex/DirectXTexD3D12.cpp
+++ b/DirectXTex/DirectXTexD3D12.cpp
@@ -19,17 +19,15 @@
 
 #define D3DX12_NO_STATE_OBJECT_HELPERS
 #define D3DX12_NO_CHECK_FEATURE_SUPPORT_CLASS
-#ifdef WIN32
 #ifdef _GAMING_XBOX_SCARLETT
 #include <d3dx12_xs.h>
 #elif (defined(_XBOX_ONE) && defined(_TITLE)) || defined(_GAMING_XBOX)
 #include "d3dx12_x.h"
-#else
-#include "d3dx12.h"
-#endif
-#else
+#elif !defined(_WIN32) || defined(USING_DIRECTX_HEADERS)
 #include "directx/d3dx12.h"
 #include "dxguids/dxguids.h"
+#else
+#include "d3dx12.h"
 #endif
 
 #ifdef __clang__
@@ -304,7 +302,7 @@ namespace
         // Block until the copy is complete
         while (fence->GetCompletedValue() < 1)
         {
-        #ifdef WIN32
+        #ifdef _WIN32
             SwitchToThread();
         #else
             std::this_thread::yield();
diff --git a/DirectXTex/DirectXTexDDS.cpp b/DirectXTex/DirectXTexDDS.cpp
index e62ccd7..ca7fe7e 100644
--- a/DirectXTex/DirectXTexDDS.cpp
+++ b/DirectXTex/DirectXTexDDS.cpp
@@ -1583,7 +1583,7 @@ HRESULT DirectX::GetMetadataFromDDSFile(
     if (!szFile)
         return E_INVALIDARG;
 
-#ifdef WIN32
+#ifdef _WIN32
 #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
     ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
 #else
@@ -1637,7 +1637,7 @@ HRESULT DirectX::GetMetadataFromDDSFile(
     // Read the header in (including extended header if present)
     uint8_t header[MAX_HEADER_SIZE] = {};
 
-#ifdef WIN32
+#ifdef _WIN32
     DWORD bytesRead = 0;
     if (!ReadFile(hFile.get(), header, MAX_HEADER_SIZE, &bytesRead, nullptr))
     {
@@ -1746,7 +1746,7 @@ HRESULT DirectX::LoadFromDDSFile(
 
     image.Release();
 
-#ifdef WIN32
+#ifdef _WIN32
 #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
     ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
 #else
@@ -1798,7 +1798,7 @@ HRESULT DirectX::LoadFromDDSFile(
     // Read the header in (including extended header if present)
     uint8_t header[MAX_HEADER_SIZE] = {};
 
-#ifdef WIN32
+#ifdef _WIN32
     DWORD bytesRead = 0;
     if (!ReadFile(hFile.get(), header, MAX_HEADER_SIZE, &bytesRead, nullptr))
     {
@@ -1824,7 +1824,7 @@ HRESULT DirectX::LoadFromDDSFile(
 
     if (!(convFlags & CONV_FLAGS_DX10))
     {
-    #ifdef WIN32
+    #ifdef _WIN32
             // Must reset file position since we read more than the standard header above
         const LARGE_INTEGER filePos = { { sizeof(uint32_t) + sizeof(DDS_HEADER), 0 } };
         if (!SetFilePointerEx(hFile.get(), filePos, nullptr, FILE_BEGIN))
@@ -1849,7 +1849,7 @@ HRESULT DirectX::LoadFromDDSFile(
             return E_OUTOFMEMORY;
         }
 
-    #ifdef WIN32
+    #ifdef _WIN32
         if (!ReadFile(hFile.get(), pal8.get(), 256 * sizeof(uint32_t), &bytesRead, nullptr))
         {
             return HRESULT_FROM_WIN32(GetLastError());
@@ -1885,7 +1885,7 @@ HRESULT DirectX::LoadFromDDSFile(
             return E_OUTOFMEMORY;
         }
 
-    #ifdef WIN32
+    #ifdef _WIN32
         if (!ReadFile(hFile.get(), temp.get(), static_cast<DWORD>(remaining), &bytesRead, nullptr))
         {
             image.Release();
@@ -1943,7 +1943,7 @@ HRESULT DirectX::LoadFromDDSFile(
             return HRESULT_E_ARITHMETIC_OVERFLOW;
         }
 
-    #ifdef WIN32
+    #ifdef _WIN32
         auto pixelBytes = static_cast<DWORD>(image.GetPixelsSize());
         if (!ReadFile(hFile.get(), image.GetPixels(), pixelBytes, &bytesRead, nullptr))
         {
@@ -2230,7 +2230,7 @@ HRESULT DirectX::SaveToDDSFile(
         return hr;
 
     // Create file and write header
-#ifdef WIN32
+#ifdef _WIN32
 #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
     ScopedHandle hFile(safe_handle(CreateFile2(szFile,
         GENERIC_WRITE | DELETE, 0, CREATE_ALWAYS, nullptr)));
@@ -2292,7 +2292,7 @@ HRESULT DirectX::SaveToDDSFile(
 
                     if ((images[index].slicePitch == ddsSlicePitch) && (ddsSlicePitch <= UINT32_MAX))
                     {
-                    #ifdef WIN32
+                    #ifdef _WIN32
                         if (!WriteFile(hFile.get(), images[index].pixels, static_cast<DWORD>(ddsSlicePitch), &bytesWritten, nullptr))
                         {
                             return HRESULT_FROM_WIN32(GetLastError());
@@ -2325,7 +2325,7 @@ HRESULT DirectX::SaveToDDSFile(
                         const size_t lines = ComputeScanlines(metadata.format, images[index].height);
                         for (size_t j = 0; j < lines; ++j)
                         {
-                        #ifdef WIN32
+                        #ifdef _WIN32
                             if (!WriteFile(hFile.get(), sPtr, static_cast<DWORD>(ddsRowPitch), &bytesWritten, nullptr))
                             {
                                 return HRESULT_FROM_WIN32(GetLastError());
@@ -2377,7 +2377,7 @@ HRESULT DirectX::SaveToDDSFile(
 
                     if ((images[index].slicePitch == ddsSlicePitch) && (ddsSlicePitch <= UINT32_MAX))
                     {
-                    #ifdef WIN32
+                    #ifdef _WIN32
                         if (!WriteFile(hFile.get(), images[index].pixels, static_cast<DWORD>(ddsSlicePitch), &bytesWritten, nullptr))
                         {
                             return HRESULT_FROM_WIN32(GetLastError());
@@ -2410,7 +2410,7 @@ HRESULT DirectX::SaveToDDSFile(
                         const size_t lines = ComputeScanlines(metadata.format, images[index].height);
                         for (size_t j = 0; j < lines; ++j)
                         {
-                        #ifdef WIN32
+                        #ifdef _WIN32
                             if (!WriteFile(hFile.get(), sPtr, static_cast<DWORD>(ddsRowPitch), &bytesWritten, nullptr))
                             {
                                 return HRESULT_FROM_WIN32(GetLastError());
@@ -2440,7 +2440,7 @@ HRESULT DirectX::SaveToDDSFile(
         return E_FAIL;
     }
 
-#ifdef WIN32
+#ifdef _WIN32
     delonfail.clear();
 #endif
 
diff --git a/DirectXTex/DirectXTexHDR.cpp b/DirectXTex/DirectXTexHDR.cpp
index c4a76a2..d0a41a7 100644
--- a/DirectXTex/DirectXTexHDR.cpp
+++ b/DirectXTex/DirectXTexHDR.cpp
@@ -34,7 +34,7 @@
 
 using namespace DirectX;
 
-#ifndef WIN32
+#ifndef _WIN32
 #include <cstdarg>
 
 #define strncpy_s strncpy
@@ -77,7 +77,7 @@ namespace
         return 0;
     }
 
-#ifndef WIN32
+#ifndef _WIN32
     template<size_t sizeOfBuffer>
     inline int sprintf_s(char(&buffer)[sizeOfBuffer], const char* format, ...)
     {
@@ -598,7 +598,7 @@ HRESULT DirectX::GetMetadataFromHDRFile(const wchar_t* szFile, TexMetadata& meta
     if (!szFile)
         return E_INVALIDARG;
 
-#ifdef WIN32
+#ifdef _WIN32
 #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
     ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
 #else
@@ -652,7 +652,7 @@ HRESULT DirectX::GetMetadataFromHDRFile(const wchar_t* szFile, TexMetadata& meta
     // Read the first part of the file to find the header
     uint8_t header[8192] = {};
 
-#ifdef WIN32
+#ifdef _WIN32
     DWORD bytesRead = 0;
     if (!ReadFile(hFile.get(), header, std::min<DWORD>(sizeof(header), fileInfo.EndOfFile.LowPart), &bytesRead, nullptr))
     {
@@ -902,7 +902,7 @@ HRESULT DirectX::LoadFromHDRFile(const wchar_t* szFile, TexMetadata* metadata, S
 
     image.Release();
 
-#ifdef WIN32
+#ifdef _WIN32
 #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
     ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
 #else
@@ -960,7 +960,7 @@ HRESULT DirectX::LoadFromHDRFile(const wchar_t* szFile, TexMetadata* metadata, S
         return E_OUTOFMEMORY;
     }
 
-#ifdef WIN32
+#ifdef _WIN32
     DWORD bytesRead = 0;
     if (!ReadFile(hFile.get(), temp.get(), fileInfo.EndOfFile.LowPart, &bytesRead, nullptr))
     {
@@ -1125,7 +1125,7 @@ HRESULT DirectX::SaveToHDRFile(const Image& image, const wchar_t* szFile) noexce
     }
 
     // Create file and write header
-#ifdef WIN32
+#ifdef _WIN32
 #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
     ScopedHandle hFile(safe_handle(CreateFile2(szFile,
         GENERIC_WRITE, 0, CREATE_ALWAYS, nullptr)));
@@ -1163,7 +1163,7 @@ HRESULT DirectX::SaveToHDRFile(const Image& image, const wchar_t* szFile) noexce
             return hr;
 
         // Write blob
-    #ifdef WIN32
+    #ifdef _WIN32
         auto const bytesToWrite = static_cast<const DWORD>(blob.GetBufferSize());
         DWORD bytesWritten;
         if (!WriteFile(hFile.get(), blob.GetBufferPointer(), bytesToWrite, &bytesWritten, nullptr))
@@ -1196,7 +1196,7 @@ HRESULT DirectX::SaveToHDRFile(const Image& image, const wchar_t* szFile) noexce
         char header[256] = {};
         sprintf_s(header, g_Header, image.height, image.width);
 
-    #ifdef WIN32
+    #ifdef _WIN32
         auto const headerLen = static_cast<DWORD>(strlen(header));
 
         DWORD bytesWritten;
@@ -1221,7 +1221,7 @@ HRESULT DirectX::SaveToHDRFile(const Image& image, const wchar_t* szFile) noexce
             FloatToRGBE(rgbe, reinterpret_cast<const float*>(sPtr), image.width, fpp);
             sPtr += image.rowPitch;
 
-        #ifdef WIN32
+        #ifdef _WIN32
             if (!WriteFile(hFile.get(), rgbe, static_cast<DWORD>(rowPitch), &bytesWritten, nullptr))
             {
                 return HRESULT_FROM_WIN32(GetLastError());
@@ -1258,7 +1258,7 @@ HRESULT DirectX::SaveToHDRFile(const Image& image, const wchar_t* szFile) noexce
                 if (encSize > UINT32_MAX)
                     return HRESULT_E_ARITHMETIC_OVERFLOW;
 
-            #ifdef WIN32
+            #ifdef _WIN32
                 if (!WriteFile(hFile.get(), enc, static_cast<DWORD>(encSize), &bytesWritten, nullptr))
                 {
                     return HRESULT_FROM_WIN32(GetLastError());
@@ -1274,7 +1274,7 @@ HRESULT DirectX::SaveToHDRFile(const Image& image, const wchar_t* szFile) noexce
             }
             else
             {
-            #ifdef WIN32
+            #ifdef _WIN32
                 if (!WriteFile(hFile.get(), rgbe, static_cast<DWORD>(rowPitch), &bytesWritten, nullptr))
                 {
                     return HRESULT_FROM_WIN32(GetLastError());
@@ -1292,7 +1292,7 @@ HRESULT DirectX::SaveToHDRFile(const Image& image, const wchar_t* szFile) noexce
     #endif
     }
 
-#ifdef WIN32
+#ifdef _WIN32
     delonfail.clear();
 #endif
 
diff --git a/DirectXTex/DirectXTexImage.cpp b/DirectXTex/DirectXTexImage.cpp
index 497b282..4083a2c 100644
--- a/DirectXTex/DirectXTexImage.cpp
+++ b/DirectXTex/DirectXTexImage.cpp
@@ -14,7 +14,7 @@
 using namespace DirectX;
 using namespace DirectX::Internal;
 
-#ifndef WIN32
+#ifndef _WIN32
 namespace
 {
     inline void * _aligned_malloc(size_t size, size_t alignment)
diff --git a/DirectXTex/DirectXTexMipmaps.cpp b/DirectXTex/DirectXTexMipmaps.cpp
index c1d9ce8..03c30c0 100644
--- a/DirectXTex/DirectXTexMipmaps.cpp
+++ b/DirectXTex/DirectXTexMipmaps.cpp
@@ -65,7 +65,7 @@ namespace
         return mipLevels;
     }
 
-#ifdef WIN32
+#ifdef _WIN32
     HRESULT EnsureWicBitmapPixelFormat(
         _In_ IWICImagingFactory* pWIC,
         _In_ IWICBitmap* src,
@@ -399,7 +399,7 @@ bool DirectX::Internal::CalculateMipLevels3D(
     return true;
 }
 
-#ifdef WIN32
+#ifdef _WIN32
 //--- Resizing color and alpha channels separately using WIC ---
 _Use_decl_annotations_
 HRESULT DirectX::Internal::ResizeSeparateColorAndAlpha(
@@ -543,7 +543,7 @@ HRESULT DirectX::Internal::ResizeSeparateColorAndAlpha(
 
         if (SUCCEEDED(hr))
         {
-            WICInProcPointer colorWithAlphaData = nullptr;
+            BYTE* colorWithAlphaData = nullptr;
             UINT colorWithAlphaSizeInBytes = 0;
             UINT colorWithAlphaStride = 0;
 
@@ -560,7 +560,7 @@ HRESULT DirectX::Internal::ResizeSeparateColorAndAlpha(
                 }
             }
 
-            WICInProcPointer colorData = nullptr;
+            BYTE* colorData = nullptr;
             UINT colorSizeInBytes = 0;
             UINT colorStride = 0;
             if (SUCCEEDED(hr))
@@ -620,7 +620,7 @@ HRESULT DirectX::Internal::ResizeSeparateColorAndAlpha(
 
 namespace
 {
-#ifdef WIN32
+#ifdef _WIN32
     //--- determine when to use WIC vs. non-WIC paths ---
     bool UseWICFiltering(_In_ DXGI_FORMAT format, _In_ TEX_FILTER_FLAGS filter) noexcept
     {
@@ -2836,7 +2836,7 @@ HRESULT DirectX::GenerateMipMaps(
 
     static_assert(TEX_FILTER_POINT == 0x100000, "TEX_FILTER_ flag values don't match TEX_FILTER_MODE_MASK");
 
-#ifdef WIN32
+#ifdef _WIN32
     bool usewic = UseWICFiltering(baseImage.format, filter);
 
     WICPixelFormatGUID pfGUID = {};
@@ -3051,7 +3051,7 @@ HRESULT DirectX::GenerateMipMaps(
 
     static_assert(TEX_FILTER_POINT == 0x100000, "TEX_FILTER_ flag values don't match TEX_FILTER_MODE_MASK");
 
-#ifdef WIN32
+#ifdef _WIN32
     bool usewic = !metadata.IsPMAlpha() && UseWICFiltering(metadata.format, filter);
 
     WICPixelFormatGUID pfGUID = {};
diff --git a/DirectXTex/DirectXTexP.h b/DirectXTex/DirectXTexP.h
index 146d8c7..7a55e0d 100644
--- a/DirectXTex/DirectXTexP.h
+++ b/DirectXTex/DirectXTexP.h
@@ -71,14 +71,14 @@
 #pragma clang diagnostic ignored "-Wunknown-pragmas"
 #endif
 
-#if defined(WIN32) || defined(_WIN32)
+#ifdef _WIN32
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN
 #endif
 
 #pragma warning(push)
 #pragma warning(disable : 4005)
-#define NOMINMAX
+#define NOMINMAX 1
 #define NODRAWTEXT
 #define NOGDI
 #define NOBITMAP
@@ -89,6 +89,10 @@
 
 #include <Windows.h>
 
+#ifdef __MINGW32__
+#include <unknwn.h>
+#endif
+
 #ifndef _WIN32_WINNT_WIN10
 #define _WIN32_WINNT_WIN10 0x0A00
 #endif
@@ -133,7 +137,7 @@
 #include <new>
 #include <tuple>
 
-#ifndef WIN32
+#ifndef _WIN32
 #include <fstream>
 #include <filesystem>
 #include <thread>
@@ -151,8 +155,8 @@
 
 #include <malloc.h>
 
-#ifdef WIN32
-#ifdef NTDDI_WIN10_FE
+#ifdef _WIN32
+#if defined(NTDDI_WIN10_FE) || defined(__MINGW32__)
 #include <ole2.h>
 #else
 #include <Ole2.h>
@@ -181,6 +185,10 @@ using WICPixelFormatGUID = GUID;
 
 #define XBOX_DXGI_FORMAT_R4G4_UNORM DXGI_FORMAT(190)
 
+#if defined(__MINGW32__) && !defined(E_BOUNDS)
+#define E_BOUNDS static_cast<HRESULT>(0x8000000BL)
+#endif
+
 // HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW)
 #define HRESULT_E_ARITHMETIC_OVERFLOW static_cast<HRESULT>(0x80070216L)
 
@@ -211,7 +219,7 @@ namespace DirectX
     {
         //-----------------------------------------------------------------------------
         // WIC helper functions
-    #ifdef WIN32
+    #ifdef _WIN32
         DXGI_FORMAT __cdecl WICToDXGI(_In_ const GUID& guid) noexcept;
         bool __cdecl DXGIToWIC(_In_ DXGI_FORMAT format, _Out_ GUID& guid, _In_ bool ignoreRGBvsBGR = false) noexcept;
 
@@ -418,7 +426,7 @@ namespace DirectX
         bool __cdecl CalculateMipLevels3D(_In_ size_t width, _In_ size_t height, _In_ size_t depth,
             _Inout_ size_t& mipLevels) noexcept;
 
-    #ifdef WIN32
+    #ifdef _WIN32
         HRESULT __cdecl ResizeSeparateColorAndAlpha(_In_ IWICImagingFactory* pWIC,
             _In_ bool iswic2,
             _In_ IWICBitmap* original,
diff --git a/DirectXTex/DirectXTexResize.cpp b/DirectXTex/DirectXTexResize.cpp
index 0723a08..831235b 100644
--- a/DirectXTex/DirectXTexResize.cpp
+++ b/DirectXTex/DirectXTexResize.cpp
@@ -19,7 +19,7 @@ using Microsoft::WRL::ComPtr;
 
 namespace
 {
-#ifdef WIN32
+#ifdef _WIN32
     //--- Do image resize using WIC ---
     HRESULT PerformResizeUsingWIC(
         const Image& srcImage,
@@ -876,7 +876,7 @@ HRESULT DirectX::Resize(
         return HRESULT_E_NOT_SUPPORTED;
     }
 
-#ifdef WIN32
+#ifdef _WIN32
     bool usewic = UseWICFiltering(srcImage.format, filter);
 
     WICPixelFormatGUID pfGUID = {};
@@ -905,7 +905,7 @@ HRESULT DirectX::Resize(
     if (!rimage)
         return E_POINTER;
 
-#ifdef WIN32
+#ifdef _WIN32
     if (usewic)
     {
         if (wicpf)
@@ -963,7 +963,7 @@ HRESULT DirectX::Resize(
     if (FAILED(hr))
         return hr;
 
-#ifdef WIN32
+#ifdef _WIN32
     bool usewic = !metadata.IsPMAlpha() && UseWICFiltering(metadata.format, filter);
 
     WICPixelFormatGUID pfGUID = {};
@@ -1019,7 +1019,7 @@ HRESULT DirectX::Resize(
                 return E_FAIL;
             }
 
-        #ifdef WIN32
+        #ifdef _WIN32
             if (usewic)
             {
                 if (wicpf)
@@ -1080,7 +1080,7 @@ HRESULT DirectX::Resize(
                 return E_FAIL;
             }
 
-        #ifdef WIN32
+        #ifdef _WIN32
             if (usewic)
             {
                 if (wicpf)
diff --git a/DirectXTex/DirectXTexTGA.cpp b/DirectXTex/DirectXTexTGA.cpp
index 029d109..7926035 100644
--- a/DirectXTex/DirectXTexTGA.cpp
+++ b/DirectXTex/DirectXTexTGA.cpp
@@ -1224,7 +1224,7 @@ namespace
             time_t now = {};
             time(&now);
 
-        #ifdef WIN32
+        #ifdef _WIN32
             tm info;
             auto pinfo = &info;
             if (!gmtime_s(pinfo, &now))
@@ -1343,7 +1343,7 @@ HRESULT DirectX::GetMetadataFromTGAFile(const wchar_t* szFile, TGA_FLAGS flags,
     if (!szFile)
         return E_INVALIDARG;
 
-#ifdef WIN32
+#ifdef _WIN32
 #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
     ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
 #else
@@ -1397,7 +1397,7 @@ HRESULT DirectX::GetMetadataFromTGAFile(const wchar_t* szFile, TGA_FLAGS flags,
     // Read the standard header (we don't need the file footer to parse the file)
     uint8_t header[sizeof(TGA_HEADER)] = {};
 
-#ifdef WIN32
+#ifdef _WIN32
     DWORD bytesRead = 0;
     if (!ReadFile(hFile.get(), header, sizeof(TGA_HEADER), &bytesRead, nullptr))
     {
@@ -1424,7 +1424,7 @@ HRESULT DirectX::GetMetadataFromTGAFile(const wchar_t* szFile, TGA_FLAGS flags,
     {
         TGA_FOOTER footer = {};
 
-    #ifdef WIN32
+    #ifdef _WIN32
         if (SetFilePointer(hFile.get(), -static_cast<int>(sizeof(TGA_FOOTER)), nullptr, FILE_END) != INVALID_SET_FILE_POINTER)
         {
             if (!ReadFile(hFile.get(), &footer, sizeof(TGA_FOOTER), &bytesRead, nullptr))
@@ -1452,7 +1452,7 @@ HRESULT DirectX::GetMetadataFromTGAFile(const wchar_t* szFile, TGA_FLAGS flags,
             if (footer.dwExtensionOffset != 0
                 && ((footer.dwExtensionOffset + sizeof(TGA_EXTENSION)) <= len))
             {
-            #ifdef WIN32
+            #ifdef _WIN32
                 const LARGE_INTEGER filePos = { { static_cast<DWORD>(footer.dwExtensionOffset), 0 } };
                 if (SetFilePointerEx(hFile.get(), filePos, nullptr, FILE_BEGIN))
                 {
@@ -1592,7 +1592,7 @@ HRESULT DirectX::LoadFromTGAFile(
 
     image.Release();
 
-#ifdef WIN32
+#ifdef _WIN32
 #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
     ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
 #else
@@ -1646,7 +1646,7 @@ HRESULT DirectX::LoadFromTGAFile(
     // Read the header
     uint8_t header[sizeof(TGA_HEADER)] = {};
 
-#ifdef WIN32
+#ifdef _WIN32
     DWORD bytesRead = 0;
     if (!ReadFile(hFile.get(), header, sizeof(TGA_HEADER), &bytesRead, nullptr))
     {
@@ -1676,7 +1676,7 @@ HRESULT DirectX::LoadFromTGAFile(
 
     if (offset > sizeof(TGA_HEADER))
     {
-    #ifdef WIN32
+    #ifdef _WIN32
             // Skip past the id string
         const LARGE_INTEGER filePos = { { static_cast<DWORD>(offset), 0 } };
         if (!SetFilePointerEx(hFile.get(), filePos, nullptr, FILE_BEGIN))
@@ -1713,7 +1713,7 @@ HRESULT DirectX::LoadFromTGAFile(
             return HRESULT_E_ARITHMETIC_OVERFLOW;
         }
 
-    #ifdef WIN32
+    #ifdef _WIN32
         if (!ReadFile(hFile.get(), image.GetPixels(), static_cast<DWORD>(image.GetPixelsSize()), &bytesRead, nullptr))
         {
             image.Release();
@@ -1932,7 +1932,7 @@ HRESULT DirectX::LoadFromTGAFile(
             return E_OUTOFMEMORY;
         }
 
-    #ifdef WIN32
+    #ifdef _WIN32
         if (!ReadFile(hFile.get(), temp.get(), static_cast<DWORD>(remaining), &bytesRead, nullptr))
         {
             image.Release();
@@ -1978,7 +1978,7 @@ HRESULT DirectX::LoadFromTGAFile(
     {
         TGA_FOOTER footer = {};
 
-    #ifdef WIN32
+    #ifdef _WIN32
         if (SetFilePointer(hFile.get(), -static_cast<int>(sizeof(TGA_FOOTER)), nullptr, FILE_END) != INVALID_SET_FILE_POINTER)
         {
             if (!ReadFile(hFile.get(), &footer, sizeof(TGA_FOOTER), &bytesRead, nullptr))
@@ -2011,7 +2011,7 @@ HRESULT DirectX::LoadFromTGAFile(
             if (footer.dwExtensionOffset != 0
                 && ((footer.dwExtensionOffset + sizeof(TGA_EXTENSION)) <= len))
             {
-            #ifdef WIN32
+            #ifdef _WIN32
                 const LARGE_INTEGER filePos = { { static_cast<DWORD>(footer.dwExtensionOffset), 0 } };
                 if (SetFilePointerEx(hFile.get(), filePos, nullptr, FILE_BEGIN))
                 {
@@ -2174,7 +2174,7 @@ HRESULT DirectX::SaveToTGAFile(
         return hr;
 
     // Create file and write header
-#ifdef WIN32
+#ifdef _WIN32
 #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
     ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_WRITE, 0,
         CREATE_ALWAYS, nullptr)));
@@ -2211,7 +2211,7 @@ HRESULT DirectX::SaveToTGAFile(
             return hr;
 
         // Write blob
-    #ifdef WIN32
+    #ifdef _WIN32
         const DWORD bytesToWrite = static_cast<DWORD>(blob.GetBufferSize());
         DWORD bytesWritten;
         if (!WriteFile(hFile.get(), blob.GetBufferPointer(), bytesToWrite, &bytesWritten, nullptr))
@@ -2239,7 +2239,7 @@ HRESULT DirectX::SaveToTGAFile(
             return E_OUTOFMEMORY;
 
         // Write header
-    #ifdef WIN32
+    #ifdef _WIN32
         DWORD bytesWritten;
         if (!WriteFile(hFile.get(), &tga_header, sizeof(TGA_HEADER), &bytesWritten, nullptr))
         {
@@ -2278,7 +2278,7 @@ HRESULT DirectX::SaveToTGAFile(
 
             pPixels += image.rowPitch;
 
-        #ifdef WIN32
+        #ifdef _WIN32
             if (!WriteFile(hFile.get(), temp.get(), static_cast<DWORD>(rowPitch), &bytesWritten, nullptr))
             {
                 return HRESULT_FROM_WIN32(GetLastError());
@@ -2300,7 +2300,7 @@ HRESULT DirectX::SaveToTGAFile(
             TGA_EXTENSION ext = {};
             SetExtension(&ext, flags, *metadata);
 
-        #ifdef WIN32
+        #ifdef _WIN32
             extOffset = SetFilePointer(hFile.get(), 0, nullptr, FILE_CURRENT);
             if (extOffset == INVALID_SET_FILE_POINTER)
             {
@@ -2330,7 +2330,7 @@ HRESULT DirectX::SaveToTGAFile(
         footer.dwExtensionOffset = extOffset;
         memcpy(footer.Signature, g_Signature, sizeof(g_Signature));
 
-    #ifdef WIN32
+    #ifdef _WIN32
         if (!WriteFile(hFile.get(), &footer, sizeof(TGA_FOOTER), &bytesWritten, nullptr))
         {
             return HRESULT_FROM_WIN32(GetLastError());
@@ -2345,7 +2345,7 @@ HRESULT DirectX::SaveToTGAFile(
     #endif
     }
 
-#ifdef WIN32
+#ifdef _WIN32
     delonfail.clear();
 #endif
 
diff --git a/DirectXTex/DirectXTexUtil.cpp b/DirectXTex/DirectXTexUtil.cpp
index a399851..02a00fd 100644
--- a/DirectXTex/DirectXTexUtil.cpp
+++ b/DirectXTex/DirectXTexUtil.cpp
@@ -32,7 +32,7 @@ using Microsoft::WRL::ComPtr;
 
 namespace
 {
-#ifdef WIN32
+#ifdef _WIN32
     //-------------------------------------------------------------------------------------
     // WIC Pixel Format Translation Data
     //-------------------------------------------------------------------------------------
@@ -127,7 +127,7 @@ namespace
 }
 
 
-#ifdef WIN32
+#ifdef _WIN32
 //=====================================================================================
 // WIC Utilities
 //=====================================================================================
diff --git a/DirectXTex/scoped.h b/DirectXTex/scoped.h
index 1114e2c..363c393 100644
--- a/DirectXTex/scoped.h
+++ b/DirectXTex/scoped.h
@@ -15,7 +15,7 @@
 #include <memory>
 #include <tuple>
 
-#ifndef WIN32
+#ifndef _WIN32
 #include <cstdlib>
 
 struct aligned_deleter { void operator()(void* p) noexcept { free(p); } };
diff --git a/ScreenGrab/ScreenGrab11.h b/ScreenGrab/ScreenGrab11.h
index da1a300..0c44887 100644
--- a/ScreenGrab/ScreenGrab11.h
+++ b/ScreenGrab/ScreenGrab11.h
@@ -19,7 +19,7 @@
 
 #include <d3d11_1.h>
 
-#ifdef NTDDI_WIN10_FE
+#if defined(NTDDI_WIN10_FE) || defined(__MINGW32__)
 #include <ocidl.h>
 #else
 #include <OCIdl.h>
diff --git a/ScreenGrab/ScreenGrab12.cpp b/ScreenGrab/ScreenGrab12.cpp
index f68bc77..14ee491 100644
--- a/ScreenGrab/ScreenGrab12.cpp
+++ b/ScreenGrab/ScreenGrab12.cpp
@@ -31,7 +31,7 @@
 #include <new>
 #include <tuple>
 
-#ifdef WIN32
+#ifdef _WIN32
 #include <wincodec.h>
 #include <wrl\client.h>
 #else
@@ -61,10 +61,10 @@
 
 #define D3DX12_NO_STATE_OBJECT_HELPERS
 #define D3DX12_NO_CHECK_FEATURE_SUPPORT_CLASS
-#ifdef WIN32
-#include "d3dx12.h"
-#else
+#if !defined(_WIN32) || defined(USING_DIRECTX_HEADERS)
 #include "directx/d3dx12.h"
+#else
+#include "d3dx12.h"
 #endif
 
 using Microsoft::WRL::ComPtr;
@@ -230,7 +230,7 @@ namespace
     { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','1','0'), 0, 0, 0, 0, 0 };
 
     //-----------------------------------------------------------------------------
-#ifdef WIN32
+#ifdef _WIN32
     struct handle_closer { void operator()(HANDLE h) noexcept { if (h) CloseHandle(h); } };
 
     using ScopedHandle = std::unique_ptr<void, handle_closer>;
@@ -842,7 +842,7 @@ namespace
         // Block until the copy is complete
         while (fence->GetCompletedValue() < 1)
         {
-        #ifdef WIN32
+        #ifdef _WIN32
             SwitchToThread();
         #else
             std::this_thread::yield();
@@ -852,7 +852,7 @@ namespace
         return S_OK;
     }
 
-#ifdef WIN32
+#ifdef _WIN32
     BOOL WINAPI InitializeWICFactory(PINIT_ONCE, PVOID, PVOID* ifactory) noexcept
     {
         return SUCCEEDED(CoCreateInstance(
@@ -929,7 +929,7 @@ HRESULT DirectX::SaveDDSTextureToFile(
         return hr;
 
     // Create file
-#ifdef WIN32
+#ifdef _WIN32
     ScopedHandle hFile(safe_handle(CreateFile2(fileName, GENERIC_WRITE, 0, CREATE_ALWAYS, nullptr)));
     if (!hFile)
         return HRESULT_FROM_WIN32(GetLastError());
@@ -1070,7 +1070,7 @@ HRESULT DirectX::SaveDDSTextureToFile(
     pStaging->Unmap(0, &writeRange);
 
     // Write header & pixels
-#ifdef WIN32
+#ifdef _WIN32
     DWORD bytesWritten;
     if (!WriteFile(hFile.get(), fileHeader, static_cast<DWORD>(headerSize), &bytesWritten, nullptr))
         return HRESULT_FROM_WIN32(GetLastError());
@@ -1101,7 +1101,7 @@ HRESULT DirectX::SaveDDSTextureToFile(
 }
 
 //--------------------------------------------------------------------------------------
-#ifdef WIN32
+#ifdef _WIN32
 _Use_decl_annotations_
 HRESULT DirectX::SaveWICTextureToFile(
     ID3D12CommandQueue* pCommandQ,
diff --git a/ScreenGrab/ScreenGrab12.h b/ScreenGrab/ScreenGrab12.h
index c57a052..c023481 100644
--- a/ScreenGrab/ScreenGrab12.h
+++ b/ScreenGrab/ScreenGrab12.h
@@ -17,20 +17,31 @@
 
 #pragma once
 
-#ifdef WIN32
-#include <d3d12.h>
+#ifdef __MINGW32__
+#include <unknwn.h>
+#endif
 
-#ifdef NTDDI_WIN10_FE
+#ifndef _WIN32
+#include <wsl/winadapter.h>
+#include <wsl/wrladapter.h>
+#endif
+
+#if !defined(_WIN32) || defined(USING_DIRECTX_HEADERS)
+#include <directx/d3d12.h>
+#include <dxguids/dxguids.h>
+#else
+#include <d3d12.h>
+#pragma comment(lib,"dxguid.lib")
+#endif
+
+#ifdef _WIN32
+#if defined(NTDDI_WIN10_FE) || defined(__MINGW32__)
 #include <ocidl.h>
 #else
 #include <OCIdl.h>
 #endif
 
 #include <functional>
-#else
-#include <wsl/winadapter.h>
-#include <wsl/wrladapter.h>
-#include <directx/d3d12.h>
 #endif
 
 
@@ -43,7 +54,7 @@ namespace DirectX
         D3D12_RESOURCE_STATES beforeState = D3D12_RESOURCE_STATE_RENDER_TARGET,
         D3D12_RESOURCE_STATES afterState = D3D12_RESOURCE_STATE_RENDER_TARGET) noexcept;
 
-#ifdef WIN32
+#ifdef _WIN32
     HRESULT __cdecl SaveWICTextureToFile(
         _In_ ID3D12CommandQueue* pCommandQ,
         _In_ ID3D12Resource* pSource,
diff --git a/ScreenGrab/ScreenGrab9.h b/ScreenGrab/ScreenGrab9.h
index 8a33654..f2f5563 100644
--- a/ScreenGrab/ScreenGrab9.h
+++ b/ScreenGrab/ScreenGrab9.h
@@ -23,7 +23,7 @@
 
 #include <d3d9.h>
 
-#ifdef NTDDI_WIN10_FE
+#if defined(NTDDI_WIN10_FE) || defined(__MINGW32__)
 #include <ocidl.h>
 #else
 #include <OCIdl.h>
diff --git a/WICTextureLoader/WICTextureLoader11.cpp b/WICTextureLoader/WICTextureLoader11.cpp
index 6b45bfd..ec81ec1 100644
--- a/WICTextureLoader/WICTextureLoader11.cpp
+++ b/WICTextureLoader/WICTextureLoader11.cpp
@@ -64,16 +64,18 @@ using Microsoft::WRL::ComPtr;
 namespace
 {
     //--------------------------------------------------------------------------------------
+    #if !defined(NO_D3D11_DEBUG_NAME) && ( defined(_DEBUG) || defined(PROFILE) )
     template<UINT TNameLength>
     inline void SetDebugObjectName(_In_ ID3D11DeviceChild* resource, _In_ const char(&name)[TNameLength]) noexcept
     {
-    #if !defined(NO_D3D11_DEBUG_NAME) && ( defined(_DEBUG) || defined(PROFILE) )
         resource->SetPrivateData(WKPDID_D3DDebugObjectName, TNameLength - 1, name);
-    #else
-        UNREFERENCED_PARAMETER(resource);
-        UNREFERENCED_PARAMETER(name);
-    #endif
     }
+    #else
+    template<UINT TNameLength>
+    inline void SetDebugObjectName(_In_ ID3D11DeviceChild*, _In_ const char(&)[TNameLength]) noexcept
+    {
+    }
+    #endif
 
     //-------------------------------------------------------------------------------------
     // WIC Pixel Format Translation Data
diff --git a/WICTextureLoader/WICTextureLoader12.cpp b/WICTextureLoader/WICTextureLoader12.cpp
index a570f5e..42dec1a 100644
--- a/WICTextureLoader/WICTextureLoader12.cpp
+++ b/WICTextureLoader/WICTextureLoader12.cpp
@@ -57,7 +57,11 @@
 
 #define D3DX12_NO_STATE_OBJECT_HELPERS
 #define D3DX12_NO_CHECK_FEATURE_SUPPORT_CLASS
+#ifdef USING_DIRECTX_HEADERS
+#include "directx/d3dx12.h"
+#else
 #include "d3dx12.h"
+#endif
 
 using namespace DirectX;
 using Microsoft::WRL::ComPtr;
@@ -197,16 +201,18 @@ namespace
     }
 
     //---------------------------------------------------------------------------------
+    #if !defined(NO_D3D12_DEBUG_NAME) && ( defined(_DEBUG) || defined(PROFILE) )
     template<UINT TNameLength>
     inline void SetDebugObjectName(_In_ ID3D12DeviceChild* resource, _In_z_ const wchar_t(&name)[TNameLength]) noexcept
     {
-    #if !defined(NO_D3D12_DEBUG_NAME) && ( defined(_DEBUG) || defined(PROFILE) )
         resource->SetName(name);
-    #else
-        UNREFERENCED_PARAMETER(resource);
-        UNREFERENCED_PARAMETER(name);
-    #endif
     }
+    #else
+    template<UINT TNameLength>
+    inline void SetDebugObjectName(_In_ ID3D12DeviceChild*, _In_z_ const wchar_t(&)[TNameLength]) noexcept
+    {
+    }
+    #endif
 
     inline uint32_t CountMips(uint32_t width, uint32_t height) noexcept
     {
diff --git a/WICTextureLoader/WICTextureLoader12.h b/WICTextureLoader/WICTextureLoader12.h
index 6960edd..54d8b8a 100644
--- a/WICTextureLoader/WICTextureLoader12.h
+++ b/WICTextureLoader/WICTextureLoader12.h
@@ -20,9 +20,22 @@
 
 #pragma once
 
-#include <d3d12.h>
+#ifndef _WIN32
+#error This module only supports Windows
+#endif
 
+#ifdef __MINGW32__
+#include <unknwn.h>
+#endif
+
+#ifdef USING_DIRECTX_HEADERS
+#include <directx/d3d12.h>
+#include <dxguids/dxguids.h>
+#else
+#include <d3d12.h>
 #pragma comment(lib,"dxguid.lib")
+#endif
+
 #pragma comment(lib,"windowscodecs.lib")
 
 #include <cstddef>