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echo: os2prog
to: Mike Byrne
from: Mike Bilow
date: 1995-09-25 03:28:18
subject: SYSxxxx errors in program

Mike Byrne wrote in a message to Mike Bilow:

 MBi> Call DosGetMessage().

 MBy> I can't seem to do that in my programs.  Is it a standard API 
 MBy> call?  I've seen a reference to "DosTrueGetMessage" before 
 MBy> also, what is this?  Keep in mind I'm compiling with VP.

I don't know anything about Pascal.  From C, this call is a standard API
call and is prototyped in BSEDOS.H:

   APIRET APIENTRY  DosGetMessage(PCHAR* pTable,
                                  ULONG cTable,
                                  PCHAR pBuf,
                                  ULONG cbBuf,
                                  ULONG msgnumber,
                                  PCSZ pszFile,
                                  PULONG pcbMsg);

It just occurs to me that maybe your Pascal compiler wants the 16-bit version:

   USHORT APIENTRY DosGetMessage(PCHAR FAR * ppchVTable, USHORT usVCount,
                                 PCHAR pchBuf, USHORT cbBuf, USHORT usMsgNum,
                                 PSZ pszFileName, PUSHORT pcbMsg);

Don't waste your time experimenting with DosTrueGetMessage().  It is
undocumented and is not what you need.
 
-- Mike


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