MFC App + Screen saver on PowerPC

Brad Wilson/Crucial Software -- crucial@pobox.com
Monday, December 09, 1996

Environment: Visual C++ 4.1, Windows NT 4.0

Intel: VC++ 4.2b, Windows NT 4.0 and Windows 95
RISC: VC++ 4.1, Windows NT 4.0

I have an MFC application with a screen saver shell (the screen saver is
written in C, and calls the MFC application to do the painting for it;
trust me, this was the easiest thing to do).

I have a PowerPC 604 w/ Windows NT 4.0 and Visual C++ 4.1 RISC edition. 
The MFC application compiles completely and works without any problems. 
However, when I link the screen saver shell for it with the included
SCRNSAVE.LIB, I get the following error:

LIBC.lib(wincrt0.obj) : error LNK1594: unresolved external symbol ..WinMain

The source code for the screen saver is unchanged source from the Intel
version (I can provide it for anyone who wants to look; no real trade
secrets in it).  Anyone have any clues what's going on?

--
Brad Wilson                       Custom software development & solutions
crucial@pobox.com               Internet and intranet consulting services
The Brads' Consulting          Windows NT/Windows 95 software development
http://www.thebrads.com    Web site planning, development and maintenance
   Content (C) 1996 Brad Wilson; no reproduction without authorization

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Mark Simonton -- marksi@eskimo.com
Saturday, December 14, 1996

I think I might know;  As a formember of the PPC-VC porting team I have
seen some of this.  My guess is that the .DEF file is listing some
function
names that are different in PPC / X86.  (this was my most often
encountered 
unresolved External generator).

Did you import the project from x86 or just create a new one?
If you imported it you might go back and check all of the settings, as 
the import feature just sets all the compiler/linker options to the 
default, which causes some apps to loose things. (you encounter this 
behaviour across any platform.

Beyond that Forwarded your message to some of my contacts in the PPC team, 
thinking they might be able to help.  One responded back to my forward
list 
with the suggestion about #ifdef's and WinMain().  which got me thinking
about the .Def file...
                                                                       
Hope this helps
Mark.

// I keep getting disconnected from my telnet session while trying to 
// enter this message, hope I haven't sent 4 or 5 partial responses.
////////////////////////////////////////////////

On Mon, 9 Dec 1996, Brad Wilson wrote:

> Environment: Visual C++ 4.1, Windows NT 4.0
> 
> Intel: VC++ 4.2b, Windows NT 4.0 and Windows 95
> RISC: VC++ 4.1, Windows NT 4.0
> 
> I have an MFC application with a screen saver shell (the screen saver is
> written in C, and calls the MFC application to do the painting for it;
> trust me, this was the easiest thing to do).
> 
> I have a PowerPC 604 w/ Windows NT 4.0 and Visual C++ 4.1 RISC edition. 
> The MFC application compiles completely and works without any problems. 
> However, when I link the screen saver shell for it with the included
> SCRNSAVE.LIB, I get the following error:
> 
> LIBC.lib(wincrt0.obj) : error LNK1594: unresolved external symbol ..WinMain
> 
> The source code for the screen saver is unchanged source from the Intel
> version (I can provide it for anyone who wants to look; no real trade
> secrets in it).  Anyone have any clues what's going on?
> 
> --
> Brad Wilson                       Custom software development & solutions
> crucial@pobox.com               Internet and intranet consulting services
> The Brads' Consulting          Windows NT/Windows 95 software development
> http://www.thebrads.com    Web site planning, development and maintenance
>    Content (C) 1996 Brad Wilson; no reproduction without authorization
> 
> 

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