Fix an issue with IsSupported function in the 64-bit version

sincos2854 · Aug 13, 2024 · 9370380 · 9370380
1 parent f81726b
commit 9370380
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/spi00in.cpp b/spi00in.cpp
@@ -164,7 +164,7 @@ int __stdcall IsSupportedW(LPCWSTR filename, DWORD_PTR dw)
     LPBYTE data = nullptr;
     DWORD read_size = 0;
 
-    if ((dw & 0xFFFF0000) == 0)
+    if ((dw & static_cast<DWORD_PTR>(-1) - 0xFFFF) == 0)
     {
         buf = std::make_unique_for_overwrite<BYTE[]>(BUF_SIZE_HEADER);
         if (!ReadFile(reinterpret_cast<HANDLE>(dw), buf.get(), BUF_SIZE_HEADER, &read_size, NULL))