tweak _WIN32_WINNT value for shellscalingapi.h present but no d3d12
diff --git a/src/core/windows/SDL_windows.h b/src/core/windows/SDL_windows.h
index 9b01492..f4cc112 100644
--- a/src/core/windows/SDL_windows.h
+++ b/src/core/windows/SDL_windows.h
@@ -33,10 +33,12 @@
#undef WINVER
#define WINVER 0x0501
#undef _WIN32_WINNT
-#if !defined(SDL_VIDEO_RENDER_D3D12)
-#define _WIN32_WINNT 0x501 /* Need 0x410 for AlphaBlend() and 0x500 for EnumDisplayDevices(), 0x501 for raw input */
-#else
+#if defined(SDL_VIDEO_RENDER_D3D12)
#define _WIN32_WINNT 0xA00 /* For D3D12, 0xA00 is required */
+#elif defined(HAVE_SHELLSCALINGAPI_H)
+#define _WIN32_WINNT 0x603 /* For DPI support */
+#else
+#define _WIN32_WINNT 0x501 /* Need 0x410 for AlphaBlend() and 0x500 for EnumDisplayDevices(), 0x501 for raw input */
#endif
#endif