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

This call allows a process to query the code page currently used to display text data.

Syntax

VioGetCp (Reserved, CodePageID, VioHandle)

Parameters

;Reserved (USHORT) - input : A reserved word of 0s. ;CodePageID (PUSHORT) - output : Address of a word in the application's data area. The current video code page is returned in this word. ;VioHandle (HVIO) - input : This must be zero unless the caller is a Presentation Manager application, in which case it must be the value returned by VioGetPs.

Return Code

;rc (USHORT) - return:Return code descriptions are:

0 NO_ERROR

355 ERROR_VIO_MODE

436 ERROR_VIO_INVALID_HANDLE

465 ERROR_VIO_DETACHED

468 ERROR_VIO_USER_FONT

Remarks

The display code page ID previously set by VioSetCp, or inherited from the requesting process, is returned to the caller.

The code page tag returned is the currently active code page. A value of 0000 indicates that the code page in use is the ROM code page provided by the hardware.

If ERROR_VIO_USER_FONT is returned, it indicates a user font that was previously loaded with VioSetFont is the active code page.

Bindings

C

#define INCL_VIO USHORT rc = VioGetCp(Reserved, CodePageID, VioHandle); USHORT Reserved; /* Reserved (must be zero) */ PUSHORT CodePageID; /* Code page ID */ HVIO VioHandle; /* Video handle */ USHORT rc; /* return code */

MASM

EXTRN VioGetCp:FAR INCL_VIO EQU 1 PUSH WORD Reserved ;Reserved (must be zero) PUSH@ WORD CodePageID ;Code page ID PUSH WORD VioHandle ;Video handle CALL VioGetCp Returns WORD

Related Functions

* VioSetCp

Note

Text based on http://www.edm2.com/index.php/VioGetCp_(FAPI)

Family API
DOS	Process Manager	DosBeep DosExit DosSleep DosExecPgm
File Manager	DosChDir DosChgFilePtr DosClose DosDelete DosDupHandle DosMkDir DosMove DosQCurDir DosQCurDisk DosSetFileMode DosOpen DosQFileInfo DosRead DosQFileMode DosQFSInfo DosQVerify DosRmDir DosSelectDisk DosFindClose DosFindFirst DosFindNext DosSetFileInfo DosSetVerify DosWrite DosFileLocks DosSetFHandState DosNewSize DosBufReset DosQFHandState DosSetFSinfo DosShutdown
Memory Manager	DosFreeSeg DosSubAlloc DosSubFree DosSubSet DosAllocHuge DosAllocSeg DosReallocHuge DosReallocSeg DosGetHugeShift DosCreateCSAlias
NLS	DosCaseMap DosGetCtryInfo DosGetDBCSEv DosSetCtryCode DosGetCollate DosGetMessage DosInsMessage DosPutMessage
Date and Time	DosSetDateTime DosGetDateTime
Devices	DosDevConfig DosDevIOCtl DosDevIOCtl2
Signals	DosHoldSignal DosSetSigHandler
Misc	BadDynLink DosGetEnv DosGetMachineMode DosGetVersion DosError DosErrClass DosSetVec
KBD	KbdCharIn KbdFlushBuffer KbdGetStatus KbdSetStatus KbdStringIn KbdPeek
VIO	VioGetBuf VioGetConfig VioGetCurPos VioGetCurType VioGetPhysBuf VioReadCellStr VioReadCharStr VioScrollUp VioScrollDn VioScrollLf VioScrollRt VioScrUnLock VioSetCurPos VioSetCurType VioSetMode VioGetMode VioShowBuf VioWrtCellStr VioWrtCharStr VioWrtCharStrAtt VioWrtNAttr VioWrtNCell VioWrtNChar VioWrtTTY VioScrLock VioPopUp
Tools	BIND
Modules	DOSCALLS.DLL VIOCALLS.DLL KBDCALLS.DLL MSG.DLL
Libraries	API.LIB OS2386.LIB FAPI.LIB DOSCALLS.LIB SUBCALLS.LIB