Path: utzoo!censor!geac!torsqnt!lethe!yunexus!ists!helios.physics.utoronto.ca!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!spool2.mu.edu!sol.ctr.columbia.edu!emory!gatech!purdue!haven!mimsy!mojo!burgoyne
From: burgoyne@eng.umd.edu (John R. Burgoyne)
Newsgroups: comp.windows.ms.programmer
Subject: Re: Huge global memory allocations
Keywords: huge global memory GlobalAlloc
Message-ID: <1991Jan30.024207.23383@eng.umd.edu>
Date: 30 Jan 91 02:42:07 GMT
References: <27A5DC96.4539@ics.uci.edu>
Sender: news@eng.umd.edu (C-News)
Organization: College of Engineering, Maryversity of Uniland, College Park
Lines: 29

In article <27A5DC96.4539@ics.uci.edu> ddoherty@ics.uci.edu (Donald Doherty) writes:
>
>	I need to allocate at least three segments (~180k) of type
>int to global memory.  This I have done using
>
>	int huge *lpGlobalMemory;
>	.
>	hGlobalMemory = GlobalAlloc (GMEM_MOVEABLE, ~180k);
>
>as suggested in Petzold.
>	This works fine only as long as I use 64k or less of the space!
>If I enter > 64k of data the system crashes with a runtime error.
>Has anyone had any similar experiences?  Any suggestions that might help
>me through this painfull adolescence in my Windows memory management
>experience?
>
>Thank-you!
>

You have to lock your memory, as in the following example:

kx =(float huge *) GlobalLock(GlobalAlloc(GMEM_FIXED, sizecount*sizeof(float) )
ky =(float huge *) GlobalLock(GlobalAlloc(GMEM_FIXED, sizecount*sizeof(float) )
kz =(float huge *) GlobalLock(GlobalAlloc(GMEM_FIXED, sizecount*sizeof(float) )

Hope it helps.

Robert