Control Program Functions

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Some general information is available at Control Program page.

File Management

File Functions

File Handle Functions

File Query Functions

Directory Search (FileFind) Functions

Directory and Disk Functions

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

Thread Local Memory Functions

Program Execution Control

Thread Control Functions

Process Control Functions

Session Control Functions

Semaphore Functions

Event Semaphore Functions

Mutex Semaphore Functions

Muxwait Semaphore Functions

Pipe Functions

Named-Pipe Functions

Unnamed-Pipe Functions

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

Queue Functions

Timer Functions

Error Management Functions

Exception Handling Functions

Signal Exception Functions

Must-Complete Functions

Device I/O Functions

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

  • DosClose
  • DosOpen
  • DosRead
  • DosWrite

Message Management Functions

Code Page Management Functions

Code Page Functions

Country Dependent Functions

Debugging Functions

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

Dynamic Linking Functions

Dos...

Unsorted

Date/Time

Timer

Error Management

Exception Management

File Systems/File Management

Large File System

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

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

QuickHelp

Keyboard functions

Mouse functions

Video I/O functions

References