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This is part of Family API which allow to create dual-os version of program runs under OS/2 and DOS
Note: This is legacy API call. It is recommended to use 32-bit equivalent
| Name | Description | Cross-platform | |
|---|---|---|---|
| BadDynLink | This is DOS specific version function which called during module loading if linking error is detected. It shows message and terminates via int 21h Terminate call | - | |
| DosBeep | Generates sound from the speaker using direct port I/O | No | |
| DosBufReset | Flushes a file cache buffers | ||
| DosChDir | Defines the current directory for the requesting process | ||
| DosChgFilePtr | Moves the read/write pointer | ||
| DosClose | Closes a handle to a file, pipe, or device | ||
| DosCreateCSAlias | Create CS alias from data segment | ||
| DosCLIAccess | Request I/O privilege for disabling and enabling interrupts | ||
| DosPortAccess | Request or release access to ports for I/O privilege | ||
| DosDelete | Removes a directory entry associated with a file name | ||
| DosDevConfig | Return device configuration | ||
| DosDupHandle | Returns a new file handle for an open file | ||
| DosFreeSeg | Deallocates a memory segment | ||
| DosGetDateTime | Get the current date and time | ||
| DosGetEnv | Return process environment for the current process | ||
| DosGetHugeShift | Return a shift count used to derive the selectors that address memory allocated with DosAllocHuge | ||
| DosGetMachineMode | Returns the current mode of the processor | ||
| DosGetMessage | Retrieve a message from the specified system message file | ||
| DosGetVersion | Return the OS version number | ||
| DosInsMessage | Insert variable text string information into the body of a message | ||
| DosMkDir | Create a subdirectory | ||
| DosMkDir2 | Create a subdirectory with EA | ||
| DosMove | Move a file object to another location, change its name | ||
| DosNewSize | Changes the size of a file | ||
| DosPutMessage | Output the message | ||
| DosQCurDir | Returns the full path name of the current directory | ||
| DosQCurDisk | Determines the current default drive for the requesting process | ||
| DosQFileMode | Queries the mode (attribute) of the specified file | ||
| DosQFSInfo | Query file system info | ||
| DosQVerify | Returns the value of the verify flag | ||
| DosRmDir | Removes a subdirectory from the specified disk | ||
| DosSelectDisk | Selects the drive specified as the default drive | ||
| DosSetDateTime | Set the date and time | ||
| DosSetFileInfo | Set attribute and extended attribute information for a file | ||
| DosSetFileMode | Changes the mode (attribute) of the specified file | ||
| DosSetVerify | Sets write verification | ||
| DosSleep | Suspend the current thread for a specified time | ||
| DosSubAlloc | Suballocate portions of a segment | ||
| DosSubFree | Free memory previously allocated by DosSubAlloc | ||
| DosSubSet | Initialize a segment for suballocation | ||
| DosWrite | Write buffer to file | ||
| DosAllocHuge | Allocate multiple segments as a huge block of memory | ||
| DosAllocSeg | Allocate a data segment up to 64KB in size | ||
| DosCaseMap | Case mapping on a string | ||
| DosDevIOCtl | Control functions on a device | ||
| DosDevIOCtl2 | Control functions on a device | ||
| DosError | Receive hard error notification | ||
| DosErrClass | Receive hard error code information | ||
| DosExecPgm | Execute another program as a child process | ||
| DosExit | End The current thread or process | ||
| DosFileLocks | Locks and unlock a range in an opened file | ||
| DosFindClose | Finish DosFindFirst or DosFindNext directory search function sequence | ||
| DosFindFirst | Finds the first file object or group of file objects whose name(s) match the specification | ||
| DosFindFirst2 | Finds the first file object or group of file objects whose name(s) match the specification | ||
| DosFindNext | Locate the next set of directory entries | ||
| DosGetCtryInfo | Obtain country-dependent formatting information that resides in the country information file | ||
| DosGetDBCSEv | Obtain a DBCS (double byte character set) environmental vector that resides in the country information file | ||
| DosGetCP | Query the current process code page and the prepared system code pages | ||
| DosSetCP | Set process code page and the session's display code page and keyboard code page | ||
| DosGetCollate | Obtain a collating sequence table | ||
| DosHoldSignal | Temporarily disable or enable signal processing for the current process | ||
| DosOpen | Open a file, a named pipe, or a device | ||
| DosOpen2 | Open a file with extended attributes | ||
| DosQFileInfo | Return information for a specific file | ||
| DosRead | Read the specified number of bytes from a file, pipe, or device to a buffer location | 1.00 | |
| DosReallocHuge | Change the size of memory originally allocated by DosAllocHuge | ||
| DosReallocSeg | Reallocate a segment after discard or changes the size of a segment already allocated | 1.00 | |
| DosSetCtryCode | |||
| DosSetFHandState | Set the state of the specified file | ||
| DosSetSigHandler | Set signal handler | ||
| DosAllocShrSeg | Allocate a named shared memory segment to a process | ||
| DosGetShrSeg | Accesses a shared memory segment previously allocated by another process | ||
| DosLoadModule | Load a dynamic link module and returns a handle for the module | ||
| DosFreeModule | Free the reference to a dynamic link module for a process | ||
| DosQHandType | Get handle type | ||
| DosGetProcAddr | Get module procedure address | ||
| DosGetPID | Get process id | ||
| DosSetMaxFH | Set maximum file handlers | ||
| DosGetModHandle | Get module handle | ||
| DosQPathInfo | Get path information | ||
| DosQFSAttach | Query information about an attached file system | ||
| DosQSysInfo | Query system variablies values | ||
| DosMemAvail | Query maximum availabe huge memory block | ||
| DosGetInfoSeg | Query global and local information segments | ||
| KbdCharIn | Return a character data record from the keyboard | ||
| KbdFlushBuffer | Clear the keystroke buffer | ||
| KbdGetStatus | Get the current state of the keyboard | ||
| KbdSetStatus | Set the characteristics of the keyboard | ||
| KbdStringIn | Read a character string (character codes only) from the keyboard | ||
| KbdPeek | Return any available character data record from the keyboard without removing it from the buffer | ||
| KbdOpen | Create a new logical keyboard | ||
| KbdClose | Close the existing logical keyboard | ||
| KbdGetFocus | |||
| KbdFreeFocus | |||
| KbdGetCp | |||
| KbdSetCp | |||
| KbdXlate | |||
| KbdSetCustXt | |||
| KbdGetHWId | |||
| KbdRegister | |||
| KbdDeRegister | |||
| MouRegister | |||
| MouDeRegister | |||
| MouGetNumButtons | |||
| MouGetNumMickeys | |||
| MouGetDevStatus | |||
| MouGetNumQueEl | |||
| MouReadEventQue | |||
| MouGetScaleFact | |||
| MouGetEventMask | |||
| MouSetScaleFact | |||
| MouSetEventMask | |||
| MouGetHotKey | |||
| MouSetHotKey | |||
| MouOpen | |||
| MouClose | |||
| MouGetPtrShape | |||
| MouSetPtrShape | |||
| MouDrawPtr | |||
| MouRemovePtr | |||
| MouGetPtrPos | |||
| MouSetPtrPos | |||
| MouInitReal | |||
| MouFlushQue | |||
| MouSetDevStatus | |||
| VioGetBuf | Return the address of the logical video buffer (LVB) | ||
| VioGetCurPos | Return the coordinates of the cursor | ||
| VioGetCurType | Get cursor type | ||
| VioGetPhysBuf | Get addressability to the physical display buffer | ||
| VioReadCellStr | Read a string of character-attribute pairs from the screen | ||
| VioReadCharStr | Read a string of characters from the display | ||
| VioScrollDn | Scroll the entire display buffer (or area specified within the display buffer) down | ||
| VioScrollLf | Scroll the entire display buffer (or area specified within the display buffer) to the left | ||
| VioScrollRt | Scroll the entire display buffer (or area specified within the display buffer) to the right | ||
| VioScrUnLock | Release ownership of (unlocks) the physical display buffer | ||
| VioSetCurPos | Set the cursor's coordinates on the screen | ||
| VioSetCurType | Set the cursor type | ||
| VioSetMode | Set the mode of the display | ||
| VioShowBuf | Update the physical display buffer with the logical video buffer (LVB) | ||
| VioWrtCellStr | Write a string of character-attribute pairs (cells) to the display | ||
| VioWrtCharStr | Write a character string to the display | ||
| VioWrtCharStrAtt | Write a character string with repeated attribute to the display | ||
| VioWrtNAttr | Write an attribute to the display a specified number of times | ||
| VioWrtNCell | Write a cell (character-attribute pair) to the display a specified number of times | 1.00 | |
| VioWrtNChar | Write a character to the display a specified number of times | ||
| VioWrtTTY | Write a character string to the display starting at the current cursor position | ||
| VioScrLock | Request ownership of (locks) the physical display buffer | ||
| VioGetMode | Return the mode of the display | ||
| VioGetConfig | Return the video display configuration | ||
| VioGetAnsi | Return the current ANSI status On/Off state | ||
| VioSetAnsi | Activate or deactivate ANSI support | ||
| VioScrollUp | Sroll the entire display buffer (or area specified within the display buffer) up | ||
| VioDeRegister | Deregister alternate video system | ||
| VioRegister | Register alternate video system | ||
| VioGetState | Return the current settings of adapter | ||
| VioSetState | Set the current settings of adapter | ||
| VioGetCP | Query the code page for display | ||
| VioSetCP | Set the code page for display | ||
| VioGetFont | Get current font | ||
| VioSetFont | Set current font | ||
| VioModeWait | Notify process about it must restore its video mode | ||
| VioModeUndo | |||
| VioPopUp | Show temporary screen to display message | ||
| VioEndPopUp | Return from temporary screen | ||
| VioSavRedrawWait | Notifies application when it must save/redraw its screen | ||
| VioSavRedrawUndo | |||
| VioPrtSc | Dump screen to printer | ||
| VioPrtScToggle | Toggle VioWrtTty also write to printer | ||