--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fuhtark_test/include/winapi/idf.h	Wed Nov 26 21:36:48 2025 +0700
@@ -0,0 +1,74 @@
+/**
+ * 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 __IDF_H__
+#define __IDF_H__
+
+typedef struct tag_IDFHEADER {
+  DWORD cbStruct;
+  DWORD dwVersion;
+  DWORD dwCreator;
+  DWORD cbInstID;
+  BYTE abInstID[1];
+} IDFHEADER,*PIDFHEADER,*LPIDFHEADER;
+
+typedef struct tag_IDFINSTINFO {
+  DWORD cbStruct;
+  DWORD dwManufactID;
+  DWORD dwProductID;
+  DWORD dwRevision;
+  DWORD cbManufactASCII;
+  DWORD cbManufactUNICODE;
+  DWORD cbProductASCII;
+  DWORD cbProductUNICODE;
+  BYTE abData[1];
+} IDFINSTINFO,*LPIDFINSTINFO;
+
+typedef struct tag_IDFINSTCAPS {
+  DWORD cbStruct;
+  DWORD fdwFlags;
+  DWORD dwBasicChannel;
+  DWORD cNumChannels;
+  DWORD cInstrumentPolyphony;
+  DWORD cChannelPolyphony;
+} IDFINSTCAPS,*PIDFINSTCAPS,*LPIDFINSTCAPS;
+
+#define IDFINSTCAPS_F_GENERAL_MIDI 0x00000001
+#define IDFINSTCAPS_F_SYSTEMEXCLUSIVE 0x00000002
+
+typedef struct tag_IDFCHANNELHDR {
+  DWORD cbStruct;
+  DWORD dwGeneralMask;
+  DWORD dwDrumMask;
+  DWORD dwReserved;
+  DWORD fdwFlags;
+} IDFCHANNELHDR,*PIDFCHANNELHDR,*LPIDFCHANNELHDR;
+
+#define IDFCHANNELHDR_F_GENERAL_MIDI 0x00000001
+
+typedef struct tag_IDFCHANNELINFO {
+  DWORD cbStruct;
+  DWORD dwChannel;
+  DWORD cbInitData;
+  BYTE abData[];
+} IDFCHANNELINFO,*PIDFCHANNELINFO,*LPIDFCHANNELINFO;
+
+typedef struct tag_IDFPATCHMAPHDR {
+  DWORD cbStruct;
+  BYTE abPatchMap[128];
+} IDFPATCHMAPHDR,*PIDFPATCHMAPHDR,*LPIDFPATCHMAPHDR;
+
+typedef struct tag_IDFKEYMAPHDR {
+  DWORD cbStruct;
+  DWORD cNumKeyMaps;
+  DWORD cbKeyMap;
+} IDFKEYMAPHDR,*PIDFKEYMAPHDR,*LPIDFKEYMAPHDR;
+
+typedef struct tag_IDFKEYMAP {
+  DWORD cbStruct;
+  BYTE abKeyMap[128];
+} IDFKEYMAP,*PIDFKEYMAP,*LPIDFKEYMAP;
+
+#endif