Open32
Open32 API enables the migration of Windows applications to OS/2 by providing a subset of the Win32 APIs on OS/2 for source code compatibility. The Open32 API provides an identical interface as the function in the Win32 environment.
In "Open32 Developer API Extensions for OS/2 Warp" Redbook from IBM is clarified that Open32 is not a Win32 API emulation, it is a native OS/2 function that is built on the operating system just like other interface layers like GPI, Presentation Manager, Control Program, etc.
Files
| File Name | Comments |
|---|---|
| PMWINX.DLL | Open32 API (a subset of about 800 Windows API's) |
| REGISTRY.DLL | Windows-like registry support. Used by Open32. |
| DAPWSOCK.DLL | Open32 Winsock API |
| USER.DAT | If deleted this file gets re-created when REGISTRY.DLL is invoked. |
| SYSTEM.DAT | If deleted this file gets re-created when REGISTRY.DLL is invoked. |
| WGSS4?.DLL | Additions to Open32 used to port Netscape Communicator |
| SYSFONT.DLL | System font dynamic link library. |
Documentation
- Open32 Programming Guide and Reference
- IBM Redbook
- SG244719 - Open32 Developer API Extensions for OS/2 Warp by Oscar Cepeda