include: Add appnotify.h file.

include/Makefile.in

@@ -19,6 +19,7 @@ SOURCES = \
 	appcompatapi.h \
 	appmgmt.h \
 	appmodel.h \
+	appnotify.h \
 	asferr.h \
 	asptlb.idl \
 	asyncinfo.idl \

include/appnotify.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2023 Mohamad Al-Jaf
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef _WINE_APISET_PSMAPPNOTIFY_H_
+#define _WINE_APISET_PSMAPPNOTIFY_H_
+
+#include <windows.h>
+
+#ifdef _CONTRACT_GEN
+#define PSM_APP_API_HOST
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(PSM_APP_API_HOST)
+#define APICONTRACT
+#else
+#define APICONTRACT DECLSPEC_IMPORT
+#endif
+
+typedef void (__cdecl *PAPPSTATE_CHANGE_ROUTINE)(BOOLEAN quiesced, void *context);
+
+typedef struct _APPSTATE_REGISTRATION *PAPPSTATE_REGISTRATION;
+
+APICONTRACT ULONG NTAPI RegisterAppStateChangeNotification(PAPPSTATE_CHANGE_ROUTINE,void *,PAPPSTATE_REGISTRATION *);
+APICONTRACT void  NTAPI UnregisterAppStateChangeNotification(PAPPSTATE_REGISTRATION);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _WINE_APISET_PSMAPPNOTIFY_H_ */