_Problem with generating PASCAL bindings file from PSDK IDL file

Question

I was trying to generate type library from one of PSDK shipped IDL files, but whilst midl session completes successfully (ERRORLEVEL 0) no .tlb file was generated. Currently i do not have any idea what wrong. Please advise.

Here is a verbose output form midl session:

>midl emptyvc.idl /tlb .\emptyvc.tlb /I "\Program Files\Microsoft SDKs\Windows\v7.0\Include" /W4
Microsoft (R) 32b/64b MIDL Compiler Version 7.00.0555
Copyright (c) Microsoft Corporation. All rights reserved.
Processing \Program Files\Microsoft SDKs\Windows\v7.0\Include\emptyvc.idl
emptyvc.idl
Processing \Program Files\Microsoft SDKs\Windows\v7.0\Include\objidl.idl
objidl.idl
Processing \Program Files\Microsoft SDKs\Windows\v7.0\Include\unknwn.idl
unknwn.idl
Processing \Program Files\Microsoft SDKs\Windows\v7.0\Include\wtypes.idl
wtypes.idl
Processing \Program Files\Microsoft SDKs\Windows\v7.0\Include\basetsd.h
basetsd.h
Processing \Program Files\Microsoft SDKs\Windows\v7.0\Include\guiddef.h
guiddef.h
\Program Files\Microsoft SDKs\Windows\v7.0\Include\wtypes.idl(671) : warning MIDL2111 : identifier length exceeds 31 characters : STGC_DANGEROUSLYCOMMITMERELYTODISKCACHE
\Program Files\Microsoft SDKs\Windows\v7.0\Include\objidl.idl(2308) : warning MIDL2111 : identifier length exceeds 31 characters : FMTID_MediaFileSummaryInformation
\Program Files\Microsoft SDKs\Windows\v7.0\Include\objidl.idl(2499) : warning MIDL2111 : identifier length exceeds 31 characters : tagEOLE_AUTHENTICATION_CAPABILITIES
\Program Files\Microsoft SDKs\Windows\v7.0\Include\objidl.idl(2518) : warning MIDL2111 : identifier length exceeds 31 characters : EOLE_AUTHENTICATION_CAPABILITIES
\Program Files\Microsoft SDKs\Windows\v7.0\Include\objidl.idl(2616) : warning MIDL2111 : identifier length exceeds 31 characters : tagRPCOPT_SERVER_LOCALITY_VALUES
\Program Files\Microsoft SDKs\Windows\v7.0\Include\objidl.idl(2652) : warning MIDL2111 : identifier length exceeds 31 characters : COMGLB_EXCEPTION_DONOT_HANDLE_FATAL
\Program Files\Microsoft SDKs\Windows\v7.0\Include\objidl.idl(2653) : warning MIDL2111 : identifier length exceeds 31 characters : COMGLB_EXCEPTION_DONOT_HANDLE_FATAL
\Program Files\Microsoft SDKs\Windows\v7.0\Include\objidl.idl(2654) : warning MIDL2111 : identifier length exceeds 31 characters : COMGLB_EXCEPTION_DONOT_HANDLE_ANY
\Program Files\Microsoft SDKs\Windows\v7.0\Include\objidl.idl(2660) : warning MIDL2111 : identifier length exceeds 31 characters : COMGLB_RPC_THREADPOOL_SETTING_DEFAULT_POOL
\Program Files\Microsoft SDKs\Windows\v7.0\Include\objidl.idl(2661) : warning MIDL2111 : identifier length exceeds 31 characters : COMGLB_RPC_THREADPOOL_SETTING_PRIVATE_POOL
\Program Files\Microsoft SDKs\Windows\v7.0\Include\objidl.idl(3359) : warning MIDL2111 : identifier length exceeds 31 characters : APTTYPEQUALIFIER_NA_ON_IMPLICIT_MTA
Processing \Program Files\Microsoft SDKs\Windows\v7.0\Include\oleidl.idl
oleidl.idl
\Program Files\Microsoft SDKs\Windows\v7.0\Include\oleidl.idl(329) : warning MIDL2111 : identifier length exceeds 31 characters : OLEMISC_RENDERINGISDEVICEINDEPENDENT
\Program Files\Microsoft SDKs\Windows\v7.0\Include\oleidl.idl(339) : warning MIDL2111 : identifier length exceeds 31 characters : OLEMISC_IGNOREACTIVATEWHENVISIBLE
Processing \Program Files\Microsoft SDKs\Windows\v7.0\Include\oaidl.idl
oaidl.idl
Processing \Program Files\Microsoft SDKs\Windows\v7.0\Include\oaidl.acf
oaidl.acf
\Program Files\Microsoft SDKs\Windows\v7.0\Include\emptyvc.idl(108) : warning MIDL2392 : [local] procedure without [call_as] : [ Procedure 'Initialize'  ]
\Program Files\Microsoft SDKs\Windows\v7.0\Include\emptyvc.idl(157) : warning MIDL2392 : [local] procedure without [call_as] : [ Procedure 'InitializeEx'  ]
** ERRORLEVEL is 0 at this point **

Parts and tools used:

• unmodified emptyvc.idl from Windows SDK version 7.0
• MIDL version 7.00.0555
• CL version 14.00.50727.42

NOTE: i believe this is not environment problem, as first thing i tried was to compile other .idl file and i got resulting .tbl as expected, with in the turn was processed by TLIBIMP without any trouble.

---

Here is CL output (which ran by MIDL completely silenced):

dlldata.c
dlldata.c(24) : error C2061: syntax error : identifier 'PROXYFILE_LIST_START'
dlldata.c(24) : error C2059: syntax error : ';'
dlldata.c(31) : error C2146: syntax error : missing ';' before identifier 'DLLDATA_ROUTINES'
dlldata.c(38) : fatal error C1004: unexpected end-of-file found

Answer 1

MIDL has this somewhat annoying habit of not producing output if there is nothing to produce. Have you confirmed that the emptyvc.idl file has types in it which can be represented in a typelib (classes, interfaces, a library directive, etc)?