API Function Calls

By Bill Earle

The following information describes the OS/2 Application Program Interface (API) calls. I have included information under the API column as follows: I also have attempted to provide information to assist in porting old programs over to OS/2. INT and SUBCODE columns provide the old DOS interrupt and subcode functions. In some cases, these are approximations of old DOS calls. Again, refer to the OS/2 Technical Reference Manual for further information.
 * F : is a Family API (FAPI) call. This means that this call will also run under DOS 3.3, if assembled with the BIND program.
 * R : means Restricted function. Refer to the OS/2 Technical Reference Manual for further info.