Control Program Function Calls

This section reflects the Dos API interface of OS/2 only.

The Dos function calls can be used in full-screen and Presentation Manager sessions to perform basic operating-system operations, such as file input/output, memory allocation, and thread and process creation/control/communication.

Notes:

Calls marked xPM are not supported by Presentation Manager, and must not be used by Presentation Manager applications. An error code is returned if any of these calls are issued.

Calls marked xWPM are not windowable and are not supported by Presentation Manager. They can be used in OS/2 mode.

Calls marked FAPI are present in the Family API.

FUNCTION CALL

FUNCTION CALL	ICON
DosAllocHuge	FAPI
DosAllocHuge	FAPI
DosAllocSeg	FAPI
DosBeep	FAPI
DosBufReset	FAPI
DosCaseMap	FAPI
DosChDir	FAPI
DosChgFilePtr	FAPI
DosClose	FAPI
DosCreateCSAlias	FAPI
DosDelete	FAPI
DosDevConfig	FAPI
DosDevIOCtl	FAPI
DosDupHandle	FAPI
DosEnumAttribute	FAPI
DosErrClass	FAPI
DosError	FAPI
DosExecPgm	FAPI
DosExit	FAPI
DosFileLocks	FAPI
DosFindClose	FAPI
DosFindFirst	FAPI
DosFindFirst2	FAPI
DosFindNext	FAPI
DosFreeSeg	FAPI
DosGetCollate	FAPI
DosGetCp	FAPI
DosGetCtryInfo	FAPI
DosGetDateTime	FAPI
DosGetDBCSEv	FAPI
DosGetEnv	FAPI
DosGetHugeShift	FAPI
DosGetMachineMode	FAPI
DosGetPID	FAPI
DosGetVersion	FAPI
DosHoldSignal	FAPI
DosInsMessage	FAPI
DosMkDir	FAPI
DosMkDir2	FAPI
DosMonClose	xPM
DosMonOpen	xPM
DosMonRead	xPM
DosMonReg	xPM
DosMonWrite	xPM
DosMove	FAPI
DosNewSize	FAPI
DosOpen	FAPI
DosOpen2	FAPI
DosPortAccess	FAPI
DosPutMessage	FAPI
DosQCurDir	FAPI
DosQCurDisk	FAPI
DosQFHandState	FAPI
DosQFileInfo	FAPI
DosQFileMode	FAPI
DosQFSInfo	FAPI
DosQHandType	FAPI
DosQPathInfo	FAPI
DosQVerify	FAPI
DosRead	FAPI
DosReallocHuge	FAPI
DosReallocSeg	FAPI
DosRmDir	FAPI
DosSelectDisk	FAPI
DosSetCp	FAPI
DosSetDateTime	FAPI
DosSetFHandState	FAPI
DosSetFileInfo	FAPI
DosSetFileMode	FAPI
DosSetFSInfo	FAPI
DosSetPathInfo	FAPI
DosSetSigHandler	FAPI
DosSetVec	FAPI
DosSetVerify	FAPI
DosSizeSeg	FAPI
DosSleep	FAPI
DosSubAlloc	FAPI
DosSubFree	FAPI
DosSubSet	FAPI
DosWrite	FAPI