Control Program Functions

Some general information is available at Control Program page.

File Management

File Functions

DosClose - Closes a file handle
DosCopy - Copies a file or subdirectory
DosDelete - Deletes a file
DosEditName - Transforms a file name
DosMove - Moves a file or subdirectory
DosOpen - Gets a handle to a file, pipe, or device
DosRead - Reads from a file, pipe, or device
DosSetFileInfo - Sets information for an open file
DosSetFileLocks - Locks and unlocks a range in a file
DosSetFilePtr - Moves the position of the file pointer
DosSetFileSize - Changes the size of a file
DosSetPathInfo - Sets information for a file or subdirectory
DosSetVerify - Enables write verification
DosWrite - Writes data to a file, pipe, or device

File Handle Functions

DosDupHandle - Duplicates a file handle
DosQueryFHState - Gets the file handle state
DosQueryHType - Gets the handle type
DosSetFHState - Sets the file handle state
DosSetMaxFH - Sets the maximum number of file handles

File Query Functions

DosEnumAttribute - Gets the name and size of a file object's extended attributes
DosQueryFileInfo - Gets information for an open file
DosQueryPathInfo - Gets information for a file or subdirectory
DosQuerySysInfo - Gets values of system variables
DosQueryVerify - Determines whether or not write verification is enabled

Directory Search (FileFind) Functions

DosFindClose - Ends a search for matching file objects
DosFindFirst - Begins a search for matching file objects
DosFindNext - Continues a search for matching file objects

Directory and Disk Functions

DosCreateDir - Creates a subdirectory
DosDeleteDir - Deletes an empty subdirectory
DosQueryCurrentDir - Gets the current directory
DosQueryCurrentDisk - Gets the current drive
DosSetCurrentDir - Sets the current directory
DosSetDefaultDisk - Sets the default drive

Environment and Search Path Functions

DosScanEnv - Gets information for a file or subdirectory
DosSearchPath - Scans environment variable
DosQueryPathInfo - Searches along a specified path
DosSetPathInfo - Sets information for a file or subdirectory

Extended LIBPATH Search Path Functions

DosQueryExtLIBPATH - Queries the search path for Dynamic Link Library, which is either before or after LIBPATH search
DosSetExtLIBPATH - Sets a search path for Dynamic Link Library, either before or after LIBPATH search

Memory Management

Memory Functions

DosAllocMem - Allocates a private memory object within the virtual address space
DosFreeMem - Frees a private or shared memory object from the virtual address space of the process
DosQueryMem - Obtains information about a range of pages within the virtual address space of the subject process
DosSetMem - Commits or decommits a range of pages within a memory object, or alters their protection

Memory Suballocation Functions

DosSubAllocMem - Suballocates a block of memory from a heap that was previously initialized
DosSubFreeMem - Frees a block of memory that was previously suballocated
DosSubSetMem - Initializes a heap for suballocation, or increases the size of a previously initialized heap
DosSubUnsetMem - Terminates the use of a heap

Shared Memory Functions

DosAllocSharedMem - Allocates a shared memory object within the virtual address space
DosGetNamedSharedMem - Obtains access to an existing named shared memory object
DosGetSharedMem - Obtains access to an existing shared memory object
DosGiveSharedMem - Gives a target process access to an existing shared memory object

Thread Local Memory Functions

DosAllocThreadLocalMemory - Allocates a block of memory that is unique, or local, to a thread
DosFreeThreadLocalMemory - Frees a block of thread-local memory

Program Execution Control

Thread Control Functions

DosCreateThread
DosEnterCritSec
DosExit - Terminates thread execution in the current process
DosExitCritSec - Enables thread switching for the current process
DosGetInfoBlocks
DosKillThread
DosResumeThread
DosSetPriority
DosSuspendThread
DosWaitThread

Process Control Functions

DosExecPgm - Executes another program as a child process
DosExitList - Defines a list of routines to be executed when the current process ends
DosKillProcess
DosWaitChild - Waits for a child process to end

Session Control Functions

DosSelectSession - Selects a child session
DosSetSession - Sets the status of a child session
DosStartSession - Starts an unrelated or child session
DosStopSession - Terminates one or all child sessions

Semaphore Functions

Event Semaphore Functions

DosCloseEventSem - Closes an event semaphore
DosCreateEventSem - Creates an event semaphore
DosOpenEventSem - Opens an event semaphore for use
DosPostEventSem - Posts an event semaphore
DosQueryEventSem
DosResetEventSem - Resets an event semaphore
DosWaitEventSem

Mutex Semaphore Functions

Muxwait Semaphore Functions

DosAddMuxWaitSem
DosCloseMuxWaitSem
DosCreateMuxWaitSem
DosDeleteMuxWaitSem
DosOpenMuxWaitSem
DosQueryMuxWaitSem
DosWaitMuxWaitSem - Waits for a muxwait semaphore to clear

Pipe Functions

Named-Pipe Functions

DosCallNPipe
DosConnectNPipe
DosCreateNPipe - Creates a named pipe
DosDisConnectNPipe
DosPeekNPipe
DosQueryNPHState
DosQueryNPipeInfo
DosQueryNPipeSemState
DosSetNPHState - Resets the blocking mode and the read mode of a named pipe
DosSetNPipeSem - Attaches a shared event semaphore to a local named pipe
DosTransactNPipe - Writes to a duplex message pipe, then reads from it
DosWaitNPipe - Waits for an instance of a named pipe to become available

Unnamed-Pipe Functions

DosClose - Closes a file or pipe
DosCreatePipe - Creates an unnamed (anonymous) pipe
DosDupHandle, DosOpen, DosRead, DosWrite

Queue Functions

DosCloseQueue - Closes a queue
DosCreateQueue - Creates a queue
DosOpenQueue - Opens a queue
DosPeekQueue
DosPurgeQueue
DosQueryQueue - Returns the number of elements in a queue
DosReadQueue
DosWriteQueue - Writes an element to a queue

Timer Functions

DosAsyncTimer
DosSleep - Suspends the current thread for a specified time interval
DosStartTimer
DosStopTimer

Error Management Functions

DosErrClass
DosError - Disables and enables hard-error and exception pop-up messages

Exception Handling Functions

DosRaiseException - Raises an exception
DosSetExceptionHandler - Registers an exception handler
DosUnsetExceptionHandler
DosUnwindException

Signal Exception Functions

DosAcknowledgeSignalException
DosSendSignalException
DosSetSignalExceptionFocus - Sets keyboard signal focus

Must-Complete Functions

DosEnterMustComplete - Enters a must-complete section of code
DosExitMustComplete - Exits a must-complete section of code

Device I/O Functions

File System Functions Used to Perform I/O to Devices:

DosClose
DosOpen
DosRead
DosWrite

Message Management Functions

DosGetMessage - Retrieves a message from a message file
DosInsertMessage - Inserts variable text into message
DosPutMessage - Sends a message to an output file or device
DosQueryMessageCP - Retrieves a message file list of code pages and language identifiers

Code Page Management Functions

Code Page Functions

DosQueryCp
DosSetProcessCp - Sets the code page of a process

Country Dependent Functions

Debugging Functions

DosDebug - Used by one process to control another for debugging purposes

Dynamic Linking Functions

DosFreeModule - Frees the reference to the dynamic link module for the process
DosLoadModule - Loads a dynamic link module, and returns a handle for the module
DosQueryModuleHandle
DosQueryModuleName
DosQueryProcAddr - Returns the address of the specified procedure within a dynamic link module

Dos...

Unsorted

Date/Time

Timer

Error Management

Exception Management

Large File System

DosCancelLockRequestL
DosListIOL - Performs the specified number of seek/read or seek/write operations
DosOpenL - Opens a file
DosProtectOpenL - Opens a file returning a protected file handle
DosProtectSetFileLocksL - Locks and unlocks a range of an open file
DosProtectSetFilePtrL - Moves the read or write pointer
DosProtectSetFileSizeL - Changes the size of a file
DosSetFileLocksL - Locks and unlocks a range of an open file
DosSetFilePtrL - Moves the read or write pointer
DosSetFileSizeL - Changes the size of a file

File Manipulation

File Handle Manipulation

File Querying

File System Functions

Resource Management

Threads

VDD

Kbd, Mou, Vio

Keyboard functions

Mouse functions

Video I/O functions

Advanced VIO

OS/2 1.x Functions

Function calls for OS/2 1.x that offer compatibility with DOS via Family API or Windows NT OS/2 subsystem.

Dos

Date/Time

Device I/O

Dynamic Linking Library

Monitor functions

Error Management

OS/2 2.0 and 1.3 only:

Exception Management

File Systems/File Management

Directory Searching:

Directory Handling:

Disk

Environment/Path

File Manipulation

File Handle Manipulation

File Querying

File System Functions

Memory Management

Huge block

Heap

Message Management

National Language/Code Page

Named Pipes

DosCallNmPipe -
DosConnectNmPipe - enables named pipe to be opened
DosDisConnectNmPipe
DosMakeNmPipe
DosMakePipe
DosPeekNmPipe
DosQNmPipeInfo
DosQNmPipeSemState
DosQNmPHandState
DosRawReadNPipe
DosRawWriteNPipe
DosSetNmPHandState
DosSetNmPipeSem
DosTransactNmPipe
DosWaitNmPipe

Resource Management

Semaphores

MuxWait Semaphores

Processes/Threading

Processes

Session Management

Session Manager

Screen Group

Timer

Addressing

Spool

Not found on OS2TK45

I/O Privileges

Segments

DosCreateCSAlias

DosFileIO

DosGetProcAddr

DosGetVersion

DosR2StackRealloc

QuickHelp

Keyboard functions

KbdCharIn - character data record from keyboard
KbdClose - closes logical keyboard
KbdDeRegister - deregister keyboard subsystem
KbdFlushBuffer -
KbdFreeFocus
KbdGetCp
KbdGetFocus -
KbdGetHWId
KbdGetStatus -
KbdInit -
KbdOpen -
KbdPeek -
KbdRegister
KbdSetCp
KbdSetCustXt
KbdSetFgnd
KbdSetHWID
KbdSetStatus
KbdSynch -
KbdStringIn
KbdXlate

Mouse functions

Video I/O functions

References

IBM OS/2 Programming Reference
IBM OS/2 Warp Control Program Programming Guide and Reference (1996)
IBM API Addendum Volume 1 (PowerPC Edition)