--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fuhtark_test/include/winapi/gb18030.h	Wed Nov 26 21:36:48 2025 +0700
@@ -0,0 +1,17 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the w64 mingw-runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within this package.
+ */
+#ifndef _GB18030_H_
+#define _GB18030_H_
+
+#define NLS_CP_CPINFO 0x10000000
+#define NLS_CP_MBTOWC 0x40000000
+#define NLS_CP_WCTOMB 0x80000000
+
+STDAPI_(DWORD) NlsDllCodePageTranslation(DWORD CodePage,DWORD dwFlags,LPSTR lpMultiByteStr,int cchMultiByte,LPWSTR lpWideCharStr,int cchWideChar,LPCPINFO lpCPInfo);
+STDAPI_(DWORD) BytesToUnicode(BYTE *lpMultiByteStr,UINT cchMultiByte,UINT *pcchLeftOverBytes,LPWSTR lpWideCharStr,UINT cchWideChar);
+STDAPI_(DWORD) UnicodeToBytes(LPWSTR lpWideCharStr,UINT cchWideChar,LPSTR lpMultiByteStr,UINT cchMultiByte);
+
+#endif /* _GB18030_H_ */