Hi Yen !
I found the following function at http://oasis.palm.com/dev/kb/ - the PalmOS
developer knowledge base:
HTH
_____
PE|RA
/***********************************************************************
*
* FUNCTION: GetOSFreeMem
*
* DESCRIPTION: Determine the amount of free memory and the amount of
* total memory in the current device. Results are expressed
* in KB. The returned value is the amount of free memory in
all
* heaps other than the dynamic heap. This is very ACCURATE!
*
* RETURNED: nothing
*
***********************************************************************/
static UInt32 GetOSFreeMem( UInt32* totalMemoryP, UInt32* dynamicMemoryP )
{
#define memoryBlockSize (1024L)
UInt32 heapFree;
UInt32 max;
Int16 i;
Int16 nCards;
UInt16 cardNo;
UInt16 heapID;
UInt32 freeMemory = 0;
UInt32 totalMemory = 0;
UInt32 dynamicMemory = 0;
// Iterate through each card to support devices with multiple cards.
nCards = MemNumCards();
for (cardNo = 0; cardNo <nCards; cardNo++)
{
// Iterate through the RAM heaps on a card (excludes ROM).
for (i=0; i< MemNumRAMHeaps(cardNo); i++)
{
// Obtain the ID of the heap.
heapID = MemHeapID(cardNo, i);
// If the heap is dynamic, increment the dynamic memory total.
if (MemHeapDynamic(heapID))
{
dynamicMemory += MemHeapSize(heapID);
}
// The heap is nondynamic.
else
{
// Calculate the total memory and free memory of the heap.
totalMemory += MemHeapSize(heapID);
MemHeapFreeBytes(heapID, &heapFree, &max);
freeMemory += heapFree;
}
}
}
// Reduce the stats to KB. Round the results.
freeMemory = freeMemory / memoryBlockSize;
totalMemory = totalMemory / memoryBlockSize;
dynamicMemory = dynamicMemory / memoryBlockSize;
if (totalMemoryP) *totalMemoryP = totalMemory;
if (dynamicMemoryP) *dynamicMemoryP = dynamicMemory;
return (freeMemory);
}
"James Nicholls" <[EMAIL PROTECTED]> schrieb im Newsbeitrag
news:52202@palm-dev-forum...
>
> MemHeapFreeBytes will tell you how much is free. Heap 0 is the normal heap
> used to allocate dynamic memory.
>
> Cheers,
> James.
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of
> [EMAIL PROTECTED]
> Sent: Friday, 8 June 2001 11:40
> To: Palm Developer Forum
> Subject: How to read out the palm free memory size
>
>
> Hi All,
>
> I need to know about the size of free memory left at Palm by software. Is
> there anybody about it? Thanks
>
> Best Regards,
> Yen
>
>
>
> --
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>
>
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