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- ID:OM Out of Memory Messages
- Quarterdeck Technical Note
- by Stan Young
-
- An out of memory message when loading a program means one of three
- things:
-
- 1. There has not been enough memory allocated to the program and
- the program is giving the error message. In this case, run
- DESQview's Change a Program and allocate some more memory (in the
- Memory Size in K field). Remember, regardless of the total memory
- on your machine, the program will only see what was allocated to
- the window.
-
- 2. You have allocated too much memory to the window and DESQview
- is giving you a message indicating it doesn't have enough free
- memory to make the partition that big. Try making the figure in
- "Memory Size in K" smaller. Run the DESQview Memory Status
- program and check the figure listed in the field Conventional
- Memory/Largest Available. This figure should give you a clue as
- to the maximum size window you can open after allowing for an 11K
- overhead if you are loading a text based program or 22K for a
- graphics based program.
-
- 3. You may have entered a value for "System Memory (in K)" on the
- advanced options menu of Change a Program. For non-DESQview
- specific programs, this figure should always be zero. Even in the
- case of DESQview specific programs, this figure would rarely be
- above 10K. Having a figure in this field increases the overhead
- for the window by a corresponding amount.
-
- When selecting a memory size for your application, you should
- consult the program's user manual to see what the developers feel is
- the minimum memory requirement. Usually, this is stated in the
- early portions of the manual or sometimes on the box that the manual
- came in. Generally you can deduct 30-40K from this number since
- these numbers are generally given in standard "round" machine sizes
- and account for the overhead of loading DOS and a few drivers. This
- overhead need not be calculated as part of the DESQview window size.
-
- Copyright (C) 1990 by Quarterdeck Office Systems
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