Family API

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Family API (FAPI) is a subset of function calls for development of OS/2 protected mode and real mode programs.

OS/2 1.0 introduced 91 function calls that could be used in FAPI programs.

Function Calls

Dos

Restricted

Kbd

Restricted

Vio

Restricted

Limitations

Real Mode
max. 640K memory
no virtual adress space
no multitasking
no undocumented OS services
If the filename of an executable produced by BIND is changed, then it will not run under DOS 2.1.
Protected Mode
16 MB memory
1GB virtual address space

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