Minor API files update.

tools/winapi_check/modules.dat

diff --git a/tools/winapi_check/modules.dat b/tools/winapi_check/modules.dat
index ca24acf..bc2033d 100644
--- a/tools/winapi_check/modules.dat
+++ b/tools/winapi_check/modules.dat
@@ -10,6 +10,8 @@
 
 % dlls/avifil32/avifile.spec
 
+dlls/avifil32
+
 % dlls/comctl32/comctl32.spec
 
 dlls/comctl32
@@ -28,6 +30,8 @@
 
 % dlls/dciman32/dciman32.spec
 
+dlls/dciman32
+
 % dlls/ddraw/ddraw.spec
 
 dlls/ddraw

tools/winapi_check/nativeapi.dat

diff --git a/tools/winapi_check/nativeapi.dat b/tools/winapi_check/nativeapi.dat
index 12d5d6c..321286a 100644
--- a/tools/winapi_check/nativeapi.dat
+++ b/tools/winapi_check/nativeapi.dat
@@ -127,6 +127,7 @@
 localtime
 log
 log10
+logb
 longjmp
 lseek
 malloc
@@ -144,6 +145,7 @@
 mprotect
 msync
 munmap
+nextafter
 ntohl
 ntohs
 open

tools/winapi_check/win16/avifile.api

diff --git a/tools/winapi_check/win16/avifile.api b/tools/winapi_check/win16/avifile.api
new file mode 100644
index 0000000..68526fa
--- /dev/null
+++ b/tools/winapi_check/win16/avifile.api
@@ -0,0 +1,23 @@
+%long
+
+DWORD
+LONG
+HRESULT
+UINT
+ULONG
+
+%ptr
+
+IAVIFile *
+LPCLSID
+PAVIFILE
+PAVIFILE *
+PAVISTREAM *
+
+%str
+
+LPCSTR
+
+%void
+
+void

tools/winapi_check/win32/dciman32.api

diff --git a/tools/winapi_check/win32/dciman32.api b/tools/winapi_check/win32/dciman32.api
new file mode 100644
index 0000000..46afe7d
--- /dev/null
+++ b/tools/winapi_check/win32/dciman32.api
@@ -0,0 +1,3 @@
+%long
+
+HDC