* VirtualFree is always available in UWP
* VirtualAlloc is only available since 19H1/18362 SDK
* VirtualAllocEx is only available since 20H1/19041 SDK

They are all found in api-ms-win-core-memory-l1-1-0 which is in mincore
and windowsapp. It's one of the target DLLs [1]

[1] 
https://learn.microsoft.com/en-us/uwp/win32-and-com/win32-apis#apis-from-api-ms-win-core-memory-l1-1-0dll
---
 mingw-w64-headers/include/memoryapi.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/mingw-w64-headers/include/memoryapi.h 
b/mingw-w64-headers/include/memoryapi.h
index 152671c18..889c2a504 100644
--- a/mingw-w64-headers/include/memoryapi.h
+++ b/mingw-w64-headers/include/memoryapi.h
@@ -29,9 +29,13 @@ extern "C" {
 #endif
 
 #if (WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_APP) && _WIN32_WINNT >= 
_WIN32_WINNT_WIN10) || WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP)
+    WINBASEAPI WINBOOL WINAPI VirtualFree (LPVOID lpAddress, SIZE_T dwSize, 
DWORD dwFreeType);
+#endif
+#if (WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_APP) && NTDDI_VERSION >= 
NTDDI_WIN10_19H1) || WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP)
     WINBASEAPI LPVOID WINAPI VirtualAlloc (LPVOID lpAddress, SIZE_T dwSize, 
DWORD flAllocationType, DWORD flProtect);
+#endif
+#if (WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_APP) && NTDDI_VERSION >= 
NTDDI_WIN10_VB) || WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP)
     WINBASEAPI LPVOID WINAPI VirtualAllocEx (HANDLE hProcess, LPVOID 
lpAddress, SIZE_T dwSize, DWORD flAllocationType, DWORD flProtect);
-    WINBASEAPI WINBOOL WINAPI VirtualFree (LPVOID lpAddress, SIZE_T dwSize, 
DWORD dwFreeType);
 #endif
 
 #if WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_APP)
-- 
2.39.2



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