In general Heap 0 ( the dynamic heap ) starts out with 250K on an OS 3.5 
device.  That same heap is used for your app's stack, globals, and any 
dynamically alloc'ed data.  Plus, the OS uses it for other items ( for 
specifics see the "Palm OS Companion" that comes with the 3.5 SDK docs ).

john


>From: Alan hand <[EMAIL PROTECTED]>
>Reply-To: "Palm Developer Forum" <[EMAIL PROTECTED]>
>To: "Palm Developer Forum" <[EMAIL PROTECTED]>
>Subject: RE: available dynamic heap for appl
>Date: Fri, 18 May 2001 12:28:47 -0700
>
>Take a look at MemHeapFreeBytes()
>
>-Alan
>
>-----Original Message-----
>From: Sean [mailto:[EMAIL PROTECTED]]
>Sent: Friday, May 18, 2001 12:23 PM
>To: Palm Developer Forum
>Subject: available dynamic heap for appl
>
>
>Hi all,
>A question for you:
>
>My application is expected to use considerablly amount of memory from
>dynamic heap.  How do I estimate the avaliable dynamic heap space for my
>application?  The PDA has 8mb runing on PalmOS 3.5.
>
>Really appreciate your help and thanks in advance!
>C
>
>
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