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program memory usage

Posted on 2000-03-07
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Last Modified: 2010-05-02
i am writing an application that requires me to obtain the memory usage for a given program under winNT and win2000.  very similar to  what  windows task manager gives you. there must be some API call to get this info. anyone know it? thanks.
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Question by:tylerd
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7 Comments
 
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Expert Comment

by:prozak
ID: 2593147
Check out the GlobalMemoryStatus API call.
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Author Comment

by:tylerd
ID: 2593239
globalmemorystatus will give the me only the memory usage for the operating system as a whole.  i need to know what apps are using what amount of memory.
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by:tylerd
ID: 2593250
Adjusted points to 150
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prozak earned 150 total points
ID: 2593297
What you can do with that is call EnumProcesses to get all the process id's in the system and then call GetProcessMemoryInfo for each process id. Or if you already have a process id you can just call GetProcessMemoryInfo.
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Expert Comment

by:prozak
ID: 2593307
This is in the Process Status Helper library and is available only on WinNT, this won't work on 95/98 to my knowledge.
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Expert Comment

by:neoabacus
ID: 2593315
you could use the GetProcessHeap function to get the handle from the process.. then call HeapSize to determine the size of the process...

see: http://msdn.microsoft.com/library/psdk/winbase/memman_5u7k.htm
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Expert Comment

by:prozak
ID: 2593350
Unfortunately GetProcessHeap will only give you a handle to the heap of the calling process. You can't use this to look at the heaps of other processes.
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