dwmapi: Add dwmapi.h and update win32.api to fix the winapi_check warnings.
diff --git a/include/Makefile.in b/include/Makefile.in
index 07daf60..889cd9c 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -152,6 +152,7 @@
 	dshow.h \
 	dsound.h \
 	dsrole.h \
+	dwmapi.h \
 	dxdiag.h \
 	dxerr8.h \
 	dxerr9.h \