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Table of Contents
OS/2 DLL entry points
This OS/2 DLL's entry point description is inspired by http://home.clara.net/orac/os2dll.htm
Base API DLL's
These DLL's contain core OS/2 API, exported by kernel (called CP API or Control Program API), and others are mostly “forwarders” to doscalls. We must note here, that in Intel OS/2 doscalls is a virtual DLL. It does not exist on disk. But here exist DOSCALL1.DLL, which is a collections of call gates into the kernel, or implementations of some API's fully in ring3, based on the real kernel API. DOSCALLS is a virtual DLL, which is a pure kernel API merged with doscall1.dll. The kernel will load also the DLL called DOSCALL2.DLL, which is “user defined API's”. This was intended for OEM API extensions.
| doscalls | Most CP API | ansicall | ANSI terminal support | nls | NLS support | msg | Message file API |
| moncalls | Monitor API | kbdcalls | Keyboard API | moucalls | Mouse API | viocalls | VIO API |
| sesmgr | Session manager | bkscalls | Base Keyboard Subsystem | bmscalls | Base Mouse subsystem | bvscalls | Base Video Subsystem |
| nampipes | Name Pipes API | quecalls | Queues API | os2char | OS/2 character console context |
Unicode API
BIDIrectional support
BVH (Base Video Handlers)
GRADD subsystem
IPF (Information Presentation facility)
REXX
PM DLL's
The core PM DLL's
| pmmerge | The PM merged library (the PM “kernel”) | pmmrgres | PMMERGE resources | pmshapi | The PMShell API | pmshltkt | PMShell toolkit ??? |
| pmgre | PM GRE (Graphics Runtime Environment) API | pmgpi | GPI (Graphical Program Interface) API | pmdrag | The PM Drag'n'Drop API | pmctls | PM controls |
| pmbidi | PM BIDI API | pmmle | PM MLE (Multiple Line Edit) control | pmspl | PM Print Spooler API | pmviop | PM VIO Shield |
| pmwin | PM Window Manager API |