summaryrefslogblamecommitdiffstats
path: root/private/os2/doc/os2api.txt
blob: 518fce5239eeb6497162a98bcc116c030cf3ab0a (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694





















































































































































































































































































































































































































































































































































































































































































































                                                                                
This file lists the OS/2 APIs that are supported, not supported,
and partially supported in Windows NT 3.5. It gives an explanation
of the restrictions on those APIs that are partially supported.


OS/2 APIs supported in Windows NT, version 3.5
----------------------------------------------

DosAllocHuge
DosAllocSeg
DosAllocShrSeg
DosBeep
DosBufReset
DosCallback
DosCallNmPipe
DosCaseMap
DosChDir
DosChgFilePtr
DosCLIAccess
DosClose
DosCloseQueue
DosCloseSem
DosConnectNmPipe
DosCopy
DosCreateCSAlias
DosCreateQueue
DosCreateSem
DosCreateThread
DosCwait
DosDelete
DosDevConfig
DosDisConnectNmPipe
DosDupHandle
DosEditName
DosEnterCritSec
DosEnumAttribute
DosErrClass
DosError
DosExecPgm
DosExit
DosExitCritSec
DosExitList
DosFileIO
DosFileLocks
DosFindClose
DosFindFirst
DosFindFirst2
DosFindNext
DosFlagProcess
DosFreeModule
DosFreeResource
DosFreeSeg
DosFSCtl
DosFSRamSemClear
DosFSRamSemRequest
DosGetCollate
DosGetCp
DosGetCtryInfo
DosGetDateTime
DosGetDBCSEv
DosGetEnv
DosGetHugeShift
DosGetInfoSeg
DosGetMachineMode
DosGetMessage
DosGetModHandle
DosGetModName
DosGetPID
DosGetPPID
DosGetProcAddr
DosGetPrty
DosGetResource
DosGetResource2
DosGetSeg
DosGetShrSeg
DosGetVersion
DosGiveSeg
DosHoldSignal
DosHugeIncr
DosHugeShift
DosInsMessage
DosKillProcess
DosLoadModule
DosLockSeg
DosMakeNmPipe
DosMakePipe
DosMemAvail
DosMkDir
DosMkDir2
DosMonClose
DosMonOpen
DosMonRead
DosMonReg
DosMonWrite
DosMove
DosMuxSemWait
DosNewSize
DosOpen
DosOpen2
DosOpenQueue
DosOpenSem
DosPeekNmPipe
DosPeekQueue
DosPhysicalDisk
DosPTrace
DosPurgeQueue
DosPutMessage
DosQAppType
DosQCurDir
DosQCurDisk
DosQFHandState
DosQFileInfo
DosQFileMode
DosQFSAttach
DosQFSInfo
DosQHandType
DosQNmPHandState
DosQNmPipeInfo
DosQNmPipeSemState
DosQPathInfo
DosQSysInfo
DosQueryQueue
DosQVerify
DosR2StackRealloc
DosRead
DosReadAsync
DosReadQueue
DosReallocHuge
DosReallocSeg
DosResumeThread
DosRmDir
DosScanEnv
DosSearchPath
DosSelectDisk
DosSelectSession
DosSemClear
DosSemRequest
DosSemSet
DosSemSetWait
DosSemWait
DosSendSignal
DosSetCp
DosSetDateTime
DosSetFHandState
DosSetFileInfo
DosSetFileMode
DosSetFilePtr
DosSetFSInfo
DosSetMaxFH
DosSetNmPHandState
DosSetNmPipeSem
DosSetPathInfo
DosSetProcCp
DosSetPrty
DosSetSession
DosSetSigHandler
DosSetVec
DosSetVerify
DosSizeSeg
DosSleep
DosStartSession
DosStopSession
DosSubAlloc
DosSubFree
DosSubSet
DosSuspendThread
DosTimerAsync
DosTimerStart
DosTimerStop
DosTransactNmPipe
DosUnlockSeg
DosWaitNmPipe
DosWrite
DosWriteAsync
DosWriteQueue

KbdCharIn
KbdClose
KbdFlushBuffer
KbdFreeFocus
KbdGetCp
KbdGetFocus
KbdGetHWID
KbdGetStatus
KbdOpen
KbdPeek
KbdSetCp
KbdSetFgnd
KbdSetStatus
KbdStringIn
KbdXlate

MouClose
MouFlushQue
MouGetDevStatus
MouGetEventMask
MouGetNumButtons
MouGetNumQueEl
MouGetPtrPos
MouOpen
MouReadEventQue
MouSetDevStatus
MouSetEventMask


NetAPI calls supported in Windows NT, version 3.5
-------------------------------------------------

The table below details the OS/2 NetAPIs and the level of support for them
under Windows NT 3.5. The different levels of support are:
- Full: no significant restrictions apply
- Down-level server + self: the API works only when the target LanMan server
        (i.e. the server for which information is to be retrieved/modified etc.)
        is a 'down-level' server (i.e. not Windows NT, for example: DOS, OS/2,
        Windows for Workgroups).
        In addition, the API works in the special case where the API is applied
        to the local machine.
- Down-level server only: same as above, but doesn't work when applied to the
        local machine.
- Unsupported: the API is not supported under Windows NT.

The APIs are listed by functional groups.


                                             SUPPORT LEVEL

                           | Full |  Down-level   |  Down-level | Unsupported |
                           |      | server + self | server only |             |
                           |------|---------------|-------------|-------------|
Access Permission APIs:    |      |               |             |             |
----------------------     |      |               |             |             |
    NetAccessAdd           |      |               |      x      |             |
    NetAccessCheck         |      |               |             |      x      |
    NetAccessDel           |      |               |      x      |             |
    NetAccessEnum          |      |               |      x      |             |
    NetAccessGetInfo       |      |               |      x      |             |
    NetAccessGetUserPerms  |      |               |      x      |             |
    NetAccessSetInfo       |      |               |      x      |             |
Alert APIs:                |      |               |             |             |
-----------                |      |               |             |             |
    NetAlertRaise          |      |               |             |      x      |
    NetAlertStart          |      |               |             |      x      |
    NetAlertStop           |      |               |             |      x      |
Auditing APIs:             |      |               |             |             |
--------------             |      |               |             |             |
    NetAuditClear          |      |               |      x      |             |
    NetAuditOpen           |      |               |             |      x      |
    NetAuditRead           |      |               |      x      |             |
    NetAuditWrite          |      |               |             |      x      |
Character Device APIs:     |      |               |             |             |
----------------------     |      |               |             |             |
    NetCharDevControl      |      |               |      x      |             |
    NetCharDevEnum         |      |               |      x      |             |
    NetCharDevGetInfo      |      |               |      x      |             |
    NetCharDevQEnum        |      |               |      x      |             |
    NetCharDevQGetInfo     |      |               |      x      |             |
    NetCharDevQPurge       |      |               |      x      |             |
    NetCharDevQPurgeSelf   |      |               |      x      |             |
    NetCharDevQSetInfo     |      |               |      x      |             |
Config APIs:               |      |               |             |             |
------------               |      |               |             |             |
    NetConfigGet           |  x   |               |             |             |
    NetConfigGet2          |      |               |             |      x      |
    NetConfigGetAll2       |      |               |             |      x      |
    NetConfigSet           |      |               |             |      x      |
Connection APIs:           |      |               |             |             |
----------------           |      |               |             |             |
    NetConnectionEnum      |  x   |               |             |             |
Domain APIs:               |      |               |             |             |
------------               |      |               |             |             |
    NetGetDcName           |  x   |               |             |             |
    NetLogonEnum           |      |               |      x      |             |
ErrorLogging APIs:         |      |               |             |             |
------------------         |      |               |             |             |
    NetErrorLogClear       |      |               |      x      |             |
    NetErrorLogRead        |      |               |      x      |             |
    NetErrorLogWrite       |      |               |             |      x      |
File APIs:                 |      |               |             |             |
----------                 |      |               |             |             |
    NetFileClose           |      |               |      x      |             |
    NetFileClose2          |      |               |      x      |             |
    NetFileEnum            |      |               |      x      |             |
    NetFileEnum2           |      |               |      x      |             |
    NetFileGetInfo         |      |               |      x      |             |
    NetFileGetInfo2        |      |               |      x      |             |
Group APIs:                |      |               |             |             |
-----------                |      |               |             |             |
    NetGroupAdd            |  x   |               |             |             |
    NetGroupAddUser        |  x   |               |             |             |
    NetGroupDel            |  x   |               |             |             |
    NetGroupDelUser        |  x   |               |             |             |
    NetGroupEnum           |  x   |               |             |             |
    NetGroupGetInfo        |  x   |               |             |             |
    NetGroupGetUsers       |  x   |               |             |             |
    NetGroupSetInfo        |  x   |               |             |             |
    NetGroupSetUsers       |  x   |               |             |             |
Handle APIs:               |      |               |             |             |
------------               |      |               |             |             |
    NetHandleGetInfo       |      |               |      x      |             |
    NetHandleSetInfo       |      |               |      x      |             |
Mailslot APIs:             |      |               |             |             |
--------------             |      |               |             |             |
    DosDeleteMailslot      |  x   |               |             |             |
    DosMailslotInfo        |  x   |               |             |             |
    DosMakeMailslot        |  x   |               |             |             |
    DosPeekMailslot        |  x   |               |             |             |
    DosReadMailslot        |  x   |               |             |             |
    DosWriteMailslot       |  x   |               |             |             |
Message APIs:              |      |               |             |             |
-------------              |      |               |             |             |
    NetMessageBufferSend   |  x   |               |             |             |
    NetMessageFileSend     |      |               |      x      |             |
    NetMessageLogFileGet   |      |               |      x      |             |
    NetMessageLogFileSet   |      |               |      x      |             |
    NetMessageNameAdd      |  x   |               |             |             |
    NetMessageNameDel      |  x   |               |             |             |
    NetMessageNameEnum     |  x   |               |             |             |
    NetMessageNameFwd      |      |               |      x      |             |
    NetMessageNameGetInfo  |  x   |               |             |             |
    NetMessageNameUnFwd    |      |               |      x      |             |
Print Destination APIs:    |      |               |             |             |
-----------------------    |      |               |             |             |
    DosPrintDestAdd        |      |               |             |      x      |
    DosPrintDestControl    |      |               |             |      x      |
    DosPrintDestDel        |      |               |             |      x      |
    DosPrintDestEnum       |      |               |             |      x      |
    DosPrintDestGetInfo    |      |               |             |      x      |
    DosPrintDestSetInfo    |      |               |             |      x      |
Print Job APIs:            |      |               |             |             |
---------------            |      |               |             |             |
    DosPrintJobContinue    |      |               |             |      x      |
    DosPrintJobDel         |      |               |             |      x      |
    DosPrintJobEnum        |      |               |             |      x      |
    DosPrintJobGetId       |      |               |             |      x      |
    DosPrintJobGetInfo     |      |               |             |      x      |
    DosPrintJobPause       |      |               |             |      x      |
    DosPrintJobSetInfo     |      |               |             |      x      |
Print Queue APIs:          |      |               |             |             |
-----------------          |      |               |             |             |
    DosPrintQAdd           |      |               |             |      x      |
    DosPrintQContinue      |      |               |             |      x      |
    DosPrintQDel           |      |               |             |      x      |
    DosPrintQEnum          |      |               |             |      x      |
    DosPrintQGetInfo       |      |               |             |      x      |
    DosPrintQPause         |      |               |             |      x      |
    DosPrintQPurge         |      |               |             |      x      |
    DosPrintQSetInfo       |      |               |             |      x      |
Profile APIs:              |      |               |             |             |
-------------              |      |               |             |             |
    NetProfileSave         |      |               |      x      |             |
    NetProfileLoad         |      |               |      x      |             |
Remote Utility APIs:       |      |               |             |             |
--------------------       |      |               |             |             |
    NetRemoteCopy          |      |               |      x      |             |
    NetRemoteExec          |      |               |      x      |             |
    NetRemoteMove          |      |               |      x      |             |
    NetRemoteTOD           |  x   |               |             |             |
Server APIs:               |      |               |             |             |
------------               |      |               |             |             |
    NetServerAdminCommand  |      |               |      x      |             |
    NetServerDiskEnum      |  x   |               |             |             |
    NetServerEnum          |      |               |      x      |             |
    NetServerEnum2         |      |               |      x      |             |
    NetServerGetInfo       |  x   |               |             |             |
    NetServerSetInfo       |  x   |               |             |             |
Service APIs:              |      |               |             |             |
-------------              |      |               |             |             |
    NetServiceControl      |  x   |               |             |             |
    NetServiceEnum         |  x   |               |             |             |
    NetServiceGetInfo      |  x   |               |             |             |
    NetServiceInstall      |  x   |               |             |             |
    NetServiceStatus       |      |               |             |      x      |
Session APIs:              |      |               |             |             |
-------------              |      |               |             |             |
    NetSessionDel          |  x   |               |             |             |
    NetSessionEnum         |  x   |               |             |             |
    NetSessionGetInfo      |  x   |               |             |             |
Share APIs:                |      |               |             |             |
-----------                |      |               |             |             |
    NetShareAdd            |  x   |               |             |             |
    NetShareCheck          |  x   |               |             |             |
    NetShareDel            |  x   |               |             |             |
    NetShareEnum           |  x   |               |             |             |
    NetShareGetInfo        |  x   |               |             |             |
    NetShareSetInfo        |  x   |               |             |             |
Statistics APIs:           |      |               |             |             |
----------------           |      |               |             |             |
    NetStatisticsClear     |      |               |      x      |             |
    NetStatisticsGet       |      |               |      x      |             |
    NetStatisticsGet2      |  x   |               |             |             |
Use APIs:                  |      |               |             |             |
---------                  |      |               |             |             |
    NetUseAdd              |      |       x       |             |             |
    NetUseDel              |      |       x       |             |             |
    NetUseEnum             |      |       x       |             |             |
    NetUseGetInfo          |      |       x       |             |             |
User APIs:                 |      |               |             |             |
----------                 |      |               |             |             |
    NetUserAdd             |  x   |               |             |             |
    NetUserDel             |  x   |               |             |             |
    NetUserEnum            |  x   |               |             |             |
    NetUserGetGroups       |  x   |               |             |             |
    NetUserGetInfo         |  x   |               |             |             |
    NetUserModalsGet       |  x   |               |             |             |
    NetUserModalsSet       |  x   |               |             |             |
    NetUserPasswordSet     |  x   |               |             |             |
    NetUserSetGroups       |  x   |               |             |             |
    NetUserSetInfo         |  x   |               |             |             |
    NetUSerValidate2       |      |               |             |      x      |
Workstation APIs:          |      |               |             |             |
-----------------          |      |               |             |             |
    NetWkstaGetInfo        |  x   |               |             |             |
    NetWkstaSetInfo        |  x   |               |             |             |
    NetWkstaSetUID         |      |               |             |      x      |
    NetWkstaSetUID2        |      |               |             |      x      |


NetBios (V3.0)
--------------

NetBiosClose (V2.X)
NetBiosEnum (V2.X)
NetBiosGetInfo (V2.X)
NetBiosOpen (V2.X)
NetBiosSubmit (V2.X)

VIO APIs
--------

VioCheckCharType
VioEndPopUp
VioGetAnsi
VioGetBuf
VioGetCp
VioGetCurPos
VioGetCurType
VioPopUp
VioReadCellStr
VioReadCharStr
VioScrLock
VioScrollDn
VioScrollLf
VioScrollRt
VioScrollUp
VioScrUnLock
VioSetAnsi
VioSetCp
VioSetCurPos
VioSetCurType
VioShowBuf
VioWrtCellStr
VioWrtCharStr
VioWrtCharStrAtt
VioWrtNAttr
VioWrtNCell
VioWrtNChar
VioWrtTTY


VIO calls supported only when called by PM applications (non-null HPS parameter)
--------------------------------------------------------------------------------

VioAssociate
VioCreateLogFont
VioCreatePS
VioDeleteSetId
VioDeRegister
VioDestroyPS
VioGetDeviceCellSize
VioGetFont
VioGetOrg
VioGetPhysBuf
VioModeUndo
VioModeWait
VioPrtSc
VioPrtScToggle
VioQueryFonts
VioQuerySetIds
VioRedrawSize
VioRegister
VioSavRedrawUndo
VioSavRedrawWait
VioSetDeviceCellSize
VioSetFont
VioSetOrg
VioShowPS

Win/Gpi/Dev API: all supported by the PM Subsystem
----------------


OS/2 APIs Not Supported in Windows NT, version 3.5
--------------------------------------------------

DosDynamicTrace
DosFindNotifyClose
DosFindNotifyFirst
DosFindNotifyNext
DosOplockRelease
DosOplockWait
DosPortAccess
DosShutdown
DosSystemService
DosSysTrace

KbdDeRegister
KbdRegister
KbdSetCustXt
KbdSynch

MouDeRegister
MouDrawPtr
MouGetNumMickeys
MouGetPtrShape
MouGetScaleFact
MouInitReal
MouRegister
MouRemovePtr
MouSetPtrPos
MouSetPtrShape
MouSetScaleFact
MouSynch

PicIchg
PicPrint


OS/2 APIs Partially Supported in Windows NT, version 3.5
--------------------------------------------------------

DosDevIOCtl, DosDevIOCtl2

The IOCTLs from the Screen and Pointer Draw category are not supported.
All of the IOCTLs from the General category are supported.
All of the IOCTLs from the Asynchronous Communications category
are supported:

ASYNC_GETBAUDRATE
ASYNC_GETCOMMERROR
ASYNC_GETCOMMEVENT
ASYNC_GETCOMMSTATUS
ASYNC_GETDCBINFO
ASYNC_GETINQUECOUNT
ASYNC_GETLINECTRL
ASYNC_GETLINESTATUS
ASYNC_GETMODEMINPUT
ASYNC_GETMODEMOUTPUT
ASYNC_GETOUTQUECOUNT
ASYNC_SETBAUDRATE
ASYNC_SETBREAKOFF
ASYNC_SETBREAKON
ASYNC_SETDCBINFO
ASYNC_SETLINECTRL
ASYNC_SETMODEMCTRL
ASYNC_STARTTRANSMIT
ASYNC_STOPTRANSMIT
ASYNC_TRANSMITIMM

The following IOCTLs from the Keyboard category are supported:

KBD_CREATE
KBD_DESTROY
KBD_GETCODEPAGE
KBD_GETINPUTMODE
KBD_GETINTERIMFLAG
KBD_GETSHIFTSTATE
KBD_PEEKCHAR
KBD_READCHAR
KBD_SETFOCUS
KBD_SETINPUTMODE
KBD_SETINTERIMFLAG
KBD_SETKCB
KBD_SETSHIFTSTATE

All of the IOCTLs from the Printer category are supported:

PRT_ACTIVATEFONT
PRT_GETFRAMECTL
PRT_GETINFINITERETRY
PRT_GETPRINTERSTATUS
PRT_INITPRINTER
PRT_QUERYACTIVEFONT
PRT_SETFRAMECTL
PRT_SETINFINITERETRY
PRT_VERIFYFONT
PTR_GETPTRDRAWADDRESS

The following IOCTLs from the Pointing Device (Mouse) category
are supported:

MOU_GETBUTTONCOUNT
MOU_GETEVENTMASK
MOU_GETMICKEYCOUUT
MOU_GETMOUSTATUS
MOU_GETQUESTATUS
MOU_READQUESTATUS
MOU_SETEVENTMASK
MOU_SETMOUSTATUS

The following IOCTLs from the Disk Control category are supported:

DSK_BLOCKREMOVABLE
DSK_GETDEVICEPARAMS
DSK_GETLOGICALMAP
DSK_LOCKDRIVE
DSK_READTRACK
DSK_REDETERMINEMEDIA
DSK_SETLOGICALMAP
DSK_SYNC
DSK_UNLOCKDRIVE
DSK_VERIFYTRACK

The following IOCTL from the Physical Disk Control category is supported:

PDSK_GETPHYSDEVICEPARAMS


The following IOCTL from the Monitors category is supported:

MON_REGISTERMONITOR


DosFSAttach

This function partially implements the DosFSAttach() API.  The only valid
FsName is "LAN". The format expected for the arguments is as follows:

DeviceName    =  device name, e.g. "J:", "LPT1:"
FsName        =  "LAN"
FsData        =  "\01\0SHARENAME" for a regular connection or
                 "\02\0SHARENAME\0PASSWORD" for a password connection or
                 "\03\0SHARENAME\0PASSWORD\0USERNAME" for a
                    username/password connection.
FsDataLength  =  length of FsData
AttachFlags   =  FS_ATTACH or FS_DETACH

The function connects to the network using WNetAdd/DelConnection().
Therefore it will use the multiple provider router to connect to any
type of network for which Windows NT has a redirector. The SHARENAME
format depends on the network you're trying to reach.  For LanMan/MsNet
networks it is "\\\\sharename\\servername".

If DeviceName is a drive letter, the drive is automatically reset to the
root directory after a connection and before a disconnection.  This is
for compatibility with OS/2.


VioGetConfig

The following return values will always be returned in the _VIOCONFIGINFO
structure.  All other fields will always return 0 (zero).

adapter     =   DISPLAY_VGA
display     =   MONITOR_851X_COLOR
cbMemory    =   0x40000 (262,144)


VioGetMode

The following return values will always be returned in the _VIOMODEINFO
structure.  Values for col, row, hres, and vres will contain the correct
values.

fbType          =   VGMT_OTHER
color           =   COLOR_16
fmt_ID          =   0
attrib          =   0
buf_addr        =   0xFFFFFFFF
buf_length      =   0L
full_length	    =   0L
partial_length  =   0L
ex_data_addr    =   0xFFFFFFFF


VioSetMode

The col and row fields in the _VIOMODEINFO structure will be used.
All other fields will be ignored.  No error code or value checking
will be performed.


VioGetState, VioSetState

All fields in the structure will contain initial values, as indicated
in the following list.  Any setting of new values will be saved and
returned on the next VioGetState call.

VIOINTENSITY.fs             =   0x0001
VIOOVERSCAN.color           =   0
VIOPALSTATE.acolor          =   all 0
VIOCOLORREG.colorregaddr    =   all 0
VIOSETUNLINELOC.scanline    =   31
VIOSETTARGET                =   (only primary display)