GWBASIC User's Manual

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GW-BASIC <strong>User's</strong> Guide IOCTL$ Function Purpose: To allow GW-BASIC to read a "control data" string from an open character device driver. Syntax: IOCTL$([#]file number) Comments: file number is the file number open to the device. The IOCTL$ function is generally used to get acknowledgement that an IOCTL statement succeeded or failed. It is also used to get device information, such as device width after an IOCTL statement requests it. Examples: 10 'GW is a possible command 20 'for get device width 30 OPEN "\DEV\MYLPT" AS#1 40 IOCTYL#1, "GW" 50 'Save it in WID 60 WID=VAL(IOCTL$(#1)) file:///C|/Documents%20and%20Settings/Lorenzo/Desktop/GW%20Basic/IOCTLS.html28/03/2004 21.29.33
GW-BASIC <strong>User's</strong> Guide KILL Command Purpose: To delete a file from a disk. Syntax: KILL filename Comments: filename can be a program file, sequential file, or random-access data file. KILL is used for all types of disk files, including program, random data, and sequential data files. Note You must specify the filename's extension when using the KILL command. Remember that files saved in GW-BASIC are given the default extension .BAS. If a KILL command is given for a file that is currently open, a "File already open" error occurs. Examples: The following command deletes the GW-BASIC file DATA1, and makes the space available for reallocation to another file: 200 KILL "DATA1.BAS" The following command deletes the GW-BASIC file RAINING from the subdirectory dogs: KILL "CATS\DOGS\RAINING.BAS" file:///C|/Documents%20and%20Settings/Lorenzo/Desktop/GW%20Basic/KILL.html28/03/2004 21.29.33
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GWBASIC User's Manual User's Guide
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GWBASIC User's Manual FILES Command
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GWBASIC User's Manual PSET Statemen
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GW-BASIC User's Guide Chapter 1 Wel
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GW-BASIC User's Guide The Glossary
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GW-BASIC User's Guide 2.2.2 Indirec
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GW-BASIC User's Guide Sample GW-BAS
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GW-BASIC User's Guide system assume
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GW-BASIC User's Guide Note Reuse of
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GW-BASIC User's Guide moves the cha
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GW-BASIC User's Guide CTRL-G Causes
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GW-BASIC User's Guide BASIC User's
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GW-BASIC User's Guide Note ↵ (arr
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GW-BASIC User's Guide Appendix H Ke
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GW-BASIC User's Guide KEY(n) n is a
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GW-BASIC User's Guide STRIG Trappin
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GW-BASIC User's Guide KEY(n) Statem
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GW-BASIC User's Guide LOC(x) Return
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GW-BASIC User's Guide 15 KEY OFF:CL
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GW-BASIC User's Guide and check the
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GW-BASIC User's Guide Chapter 3 Rev
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GW-BASIC User's Guide until the RUN
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GW-BASIC User's Guide To save a fil
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GW-BASIC User's Guide Hexadecimal H
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GW-BASIC User's Guide The GW-BASIC
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GW-BASIC User's Guide The arithmeti
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GW-BASIC User's Guide Modulus arith
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GW-BASIC User's Guide EQV X Y X EQV
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GW-BASIC User's Guide RUN FILENAME
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GW-BASIC User's Guide OPTION BASE S
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GW-BASIC User's Guide LET Statement
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GW-BASIC User's Guide . . 400 R=1:
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GW-BASIC User's Guide ● Sequentia
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GW-BASIC User's Guide The program i
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GW-BASIC User's Guide PUT #1, CODE%
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GW-BASIC User's Guide number. Lines
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GW-BASIC User's Guide Appendix A Er
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GW-BASIC User's Guide 18 Undefined
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GW-BASIC User's Guide 59-60Unprinta
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GW-BASIC User's Guide 75 Path/File
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GW-BASIC User's Guide Appendix C AS
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GW-BASIC User's Guide Appendix D As
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GW-BASIC User's Guide moved the cur
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GW-BASIC User's Guide that the code
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GW-BASIC User's Guide converted to
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GW-BASIC User's Guide DEF USR State
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GW-BASIC User's Guide USR Function
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GW-BASIC User's Guide E.3 Multiple
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GW-BASIC User's Guide 8 8 18 24 90
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GW-BASIC User's Guide _ Underscore.
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GW-BASIC User's Guide Data represen
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GW-BASIC User's Guide binary system
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GW-BASIC User's Guide computers or
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GW-BASIC User's Guide double-precis
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GW-BASIC User's Guide graphics A ha
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GW-BASIC User's Guide precisely ref
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GW-BASIC User's Guide An extra-bit
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GW-BASIC User's Guide single-densit
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GW-BASIC User's Guide ABS Function
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GW-BASIC User's Guide CHR$ Function
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GW-BASIC User's Guide AUTO Command
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GW-BASIC User's Guide BLOAD Command
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GW-BASIC User's Guide BSAVE Command
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GW-BASIC User's Guide Note ● Valu
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GW-BASIC User's Guide CDBL Function
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GW-BASIC User's Guide INT Function
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GW-BASIC User's Guide CHAIN Stateme
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GW-BASIC User's Guide MERGE Command
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GW-BASIC User's Guide CIRCLE Statem
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GW-BASIC User's Guide COLOR Stateme
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GW-BASIC User's Guide For more info
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GW-BASIC User's Guide EGA with Enha
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GW-BASIC User's Guide SCREEN 10 ●
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GW-BASIC User's Guide For various s
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GW-BASIC User's Guide PALETTE, PALE
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GW-BASIC User's Guide Enhanced d EG
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GW-BASIC User's Guide N Move, but r
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GW-BASIC User's Guide LINE Statemen
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GW-BASIC User's Guide LINE (0,0)-(1
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GW-BASIC User's Guide tile_length i
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GW-BASIC User's Guide PRESET and PS
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GW-BASIC User's Guide CLEAR Command
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GW-BASIC User's Guide CLOSE Stateme
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GW-BASIC User's Guide COM(n) Statem
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GW-BASIC User's Guide CONT Command
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GW-BASIC User's Guide CSRLIN Variab
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GW-BASIC User's Guide CVI, CVS, CVD
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GW-BASIC User's Guide DATA Statemen
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GW-BASIC User's Guide RESTORE State
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GW-BASIC User's Guide the value of
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GW-BASIC User's Guide DEFINT/SNG/DB
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GW-BASIC User's Guide DEF and SEG m
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GW-BASIC User's Guide POKE Statemen
Page 187 and 188: GW-BASIC User's Guide EDIT Command
Page 189 and 190: GW-BASIC User's Guide ENVIRON State
Page 191 and 192: GW-BASIC User's Guide ENVIRON$ Func
Page 193 and 194: GW-BASIC User's Guide SHELL Stateme
Page 195 and 196: GW-BASIC User's Guide EOF Function
Page 197 and 198: GW-BASIC User's Guide ERDEV and ERD
Page 199 and 200: GW-BASIC User's Guide ERROR Stateme
Page 201 and 202: GW-BASIC User's Guide EXP Function
Page 203 and 204: GW-BASIC User's Guide FIELD Stateme
Page 205 and 206: GW-BASIC User's Guide GET Statement
Page 207 and 208: GW-BASIC User's Guide FOR ... NEXT
Page 209 and 210: GW-BASIC User's Guide FRE Function
Page 211 and 212: GW-BASIC User's Guide The number of
Page 213 and 214: GW-BASIC User's Guide GOTO Statemen
Page 215 and 216: GW-BASIC User's Guide OCT$ Function
Page 217 and 218: GW-BASIC User's Guide Testing Equal
Page 219 and 220: GW-BASIC User's Guide 1070 TIMEOUT%
Page 221 and 222: GW-BASIC User's Guide INPUT Stateme
Page 223 and 224: GW-BASIC User's Guide PRINT Stateme
Page 225 and 226: GW-BASIC User's Guide STRING$ Funct
Page 227 and 228: GW-BASIC User's Guide PRINT USING S
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Page 231 and 232: GW-BASIC User's Guide WIDTH Stateme
Page 233 and 234: GW-BASIC User's Guide INPUT# Statem
Page 235 and 236: GW-BASIC User's Guide 100 PRINT "TY
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Page 241 and 242: GW-BASIC User's Guide MID$ Function
Page 243 and 244: GW-BASIC User's Guide LEN FUNCTION
Page 245 and 246: GW-BASIC User's Guide LINE INPUT# S
Page 247 and 248: GW-BASIC User's Guide LLIST Command
Page 249 and 250: GW-BASIC User's Guide LOC Function
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Page 255 and 256: GW-BASIC User's Guide LOG Function
Page 257 and 258: GW-BASIC User's Guide MID$ Statemen
Page 259 and 260: GW-BASIC User's Guide NAME Command
Page 261 and 262: GW-BASIC User's Guide ON ERROR GOTO
Page 263 and 264: GW-BASIC User's Guide ON ... GOSUB
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Page 269 and 270: GW-BASIC User's Guide RESET Command
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Page 275 and 276: GW-BASIC User's Guide PCOPY Command
Page 277 and 278: GW-BASIC User's Guide n = 5 Returns
Page 279 and 280: GW-BASIC User's Guide . (period) A
Page 281 and 282: GW-BASIC User's Guide PMAP Function
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Page 287 and 288: GW-BASIC User's Guide PUT Statement
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GW-BASIC User's Guide RANDOMIZE Sta
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GW-BASIC User's Guide RND Function
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GW-BASIC User's Guide . . . 129 FOR
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GW-BASIC User's Guide RESUME Statem
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GW-BASIC User's Guide RMDIR Command
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GW-BASIC User's Guide SAVE Command
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GW-BASIC User's Guide SGN Function
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GW-BASIC User's Guide SOUND Stateme
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GW-BASIC User's Guide SPACE$ Functi
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GW-BASIC User's Guide SQR Function
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GW-BASIC User's Guide STOP Statemen
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GW-BASIC User's Guide VAL Function
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GW-BASIC User's Guide STRIG(n) Stat
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GW-BASIC User's Guide SYSTEM Comman
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GW-BASIC User's Guide TAN Function
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GW-BASIC User's Guide 08:00:05 The
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GW-BASIC User's Guide TRON/TROFF Co
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GW-BASIC User's Guide 0 1 Mode The
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GW-BASIC User's Guide VARPTR$ Funct
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GW-BASIC User's Guide The following
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GW-BASIC User's Guide WAIT Statemen
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GW-BASIC User's Guide WINDOW Statem
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GW-BASIC User's Guide WRITE Stateme
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GWBASIC User's Manual

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