Keyword Reference - By usage

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Go to Alphabetical keywords

Keywords beginning with _underscore can only be compiled in QB64.

Keywords without the underscore at the beginning should work with both QB 4.5 and QB64.

Graphics:

Contents 1 Graphics: 2 Fonts: 3 Sound: 4 User input: 5 Text on screen: 6 Controlling program flow: 7 File I/O: 8 TCP/IP: 9 Time, date and delay: 10 Error trapping: 11 Memory handling: 12 Ports: 13 Converting, defining and dimensioning variables: 14 Getting information about variables: 15 Setting/clearing variables and manipulating them: 16 Subs and functions, modules, libraries and external programs: 17 Mathematical Functions: 18 Bit Logical Operations: 19 Conditional Operations: 20 Data: 21 DOS/OS and Environment: 22 Printer: 23 Unclassified: 24 Symbols: 25 References:

_A

• _ALPHA (function)
• _ALPHA32 (function)
• _AUTODISPLAY

_B

• _BACKGROUNDCOLOR (function)
• _BLEND (sub)
• _BLEND (function)
• _BLUE (function)
• _BLUE32 (function)

_C

• _CLEARCOLOR (sub)
• _CLEARCOLOR (function)
• _CLIP
• _COPYIMAGE (function)
• _COPYPALETTE (sub)

_D

• _DEFAULTCOLOR (function)
• _DEST (sub)
• _DEST (function)
• _DISPLAY (sub)
• _DISPLAY (function)
• _DONTBLEND (sub)

_F

• _FULLSCREEN (function)
• _FULLSCREEN (statement)
• _FREEIMAGE (sub)

_G

• _GREEN (function)
• _GREEN32 (function)

_H

• _HEIGHT (function)

_L

• _LOADIMAGE (function)

_N

• _NEWIMAGE (function)

_P

• _PALETTECOLOR (sub)
• _PALETTECOLOR (function)
• _PIXELSIZE (function)
• _PUTIMAGE (sub)

_R

• _RED (function)
• _RED32 (function)
• _RGB (function)
• _RGB32 (function)
• _RGBA (function)
• _RGBA32 (function)

_S

• _SETALPHA (sub)
• _SOURCE (sub)
• _SOURCE (function)

_W

• _WIDTH (function)

C

• CIRCLE (statement)
• CLS (statement)
• COLOR (statement)

D

• DRAW (statement)

G

• GET (graphics statement)

L

• LINE (statement)

P

• PAINT (statement)
• PALETTE (statements)
• PCOPY (statement)
• PMAP (function)
• POINT (function)
• PRESET (statement)
• PSET (statement)
• PUT (graphics statement)

S

• SCREEN (statement)

V

• VIEW (graphics statement)
• WINDOW (statement)

(Return to Table of Contents)

Fonts:

_F

• _FONT (sub)
• _FONT (function)
• _FONTHEIGHT (function)
• _FONTWIDTH (function)
• _FREEFONT (sub)

_L

• _LOADFONT (function)

_P

• _PRINTMODE (sub)
• _PRINTMODE (function)
• _PRINTSTRING (sub)
• _PRINTWIDTH (function)

(Return to Table of Contents)

Sound:

_S

• _SNDBAL
• _SNDCLOSE
• _SNDCOPY
• _SNDGETPOS
• _SNDLEN
• _SNDLIMIT
• _SNDLOOP
• _SNDOPEN
• _SNDPAUSE
• _SNDPAUSED
• _SNDPLAY
• _SNDPLAYCOPY
• _SNDPLAYFILE
• _SNDPLAYING
• _SNDSETPOS
• _SNDSTOP
• _SNDVOL

B

• BEEP (statement)

O

• ON PLAY (n) (statement)

P

• PLAY(n) (function)
• PLAY (music statement)

S

• SOUND (statement)

(Return to Table of Contents)

User input:

_M

• _MOUSEBUTTON (function)
• _MOUSEHIDE (sub)
• _MOUSEINPUT (function)
• _MOUSEMOVEMENTX (function)
• _MOUSEMOVEMENTY (function)
• _MOUSESHOW (sub)
• _MOUSEWHEEL (function)
• _MOUSEX (function)
• _MOUSEY (function)

I

• INKEY$ (function)
• INPUT (statement)
• INPUT$ (function)

K

• KEY (statement)
• KEY(n) (statement)

L

• LINE INPUT (statement)

O

• ON KEY (n) (statement)
• ON PEN (statement)
• ON STRIG (n) (statement)

P

• PEN (function)
• PEN (statement)

S

• SLEEP (statement)
• STICK (function)
• STRIG (function)
• STRIG (statements)

(Return to Table of Contents)

Text on screen:

C

• CHR$
• CLS (statement)
• CSRLIN (function)

I

• INPUT (statement)

K

• KEY LIST (statement)
• KEY ON (statement)
• KEY OFF (statement)

L

• LINE INPUT
• LIST (statement)
• LOCATE (statement)

P

• POS (function)
• PRINT (statement)
• PRINT USING (statement)

S

• SCREEN (function)
• SPACE$ (function)
• SPC (function)

T

• TAB (function)

V

• VIEW PRINT

W

• WIDTH (statement)
• WRITE (screen I/O statement)

(Return to Table of Contents)

Controlling program flow:

C

• CALL (statement)
• CALLS (statement)
• CALL ABSOLUTE (statement)
• INTERRUPT (statement)
• CASE
• CASE ELSE

D

• DO...LOOP (statement)

E

• ELSE
• ELSEIF
• END (statement)
• END IF (statement)
• END SELECT (statement)
• ERROR (error statement)
• EXIT (statement)
• EXIT DO (statement)
• EXIT FUNCTION (statement)
• EXIT SUB (statement)

F

• FOR...NEXT (statement)

G

• GOSUB (statement)
• GOTO (statement)

I

• IF...THEN (statement)
• IS

L

• LOOP

N

• NEXT

O

• OFF
• ON
• ON COM (n) (statement)
• ON ERROR (statement)
• ON KEY (n) (statement)
• ON PEN (statement)
• ON PLAY (n) (statement)
• ON STRIG (n) (statement)
• ON TIMER (n) (statement)
• ON UEVENT (statement)
• ON...GOSUB (statement)
• ON...GOTO (statement)

R

• RESUME (statement)
• RETURN (statement)
• RUN (statement)

S

• SELECT CASE (statement)
• SHELL (statement)
• SLEEP (statement)
• STEP
• STOP (statement)
• SYSTEM (statement)

T

• THEN
• TIMER (statement)
• TROFF (statement)
• TRON (statement)

U

• UEVENT (statement)
• UNTIL

W

• WAIT (statement)
• WEND (statement)
• WHILE (statement)
• WHILE...WEND (statement)

(Return to Table of Contents)

File I/O:

A

• ACCESS (file statement)
• APPEND (file mode)
• AS

B

• BINARY (file mode)
• BLOAD (statement)
• BSAVE (statement)

C

• CHDIR (statement)
• CLOSE (statement)

E

• EOF (file function)

F

• FIELD (statement)
• FILEATTR (function)
• FILES (statement)
• FOR (file statement) (to select file mode)
  • APPEND (file mode)
  • BINARY (file mode)
  • INPUT (file mode)
  • OUTPUT (file mode)
  • RANDOM (file mode)
• FREEFILE (file function)

G

• GET (file I/O statement)

I

• INPUT (file mode)
• INPUT (file statement)
• INPUT$ (function)
• IOCTL (statement)
• IOCTL$ (function)

K

• KILL (statement)

L

• LINE INPUT (file statement)
• LOCK (statement)
• LOC (function)
• LOF (file function)

M

• MKDIR (statement)

N

• NAME (statement)

O

• OPEN (file I/O statement)
• OUTPUT (file mode)

P

• PRINT (file statement)
• PRINT USING (file statement)
• PUT (file I/O statement)

R

• RANDOM (file mode)
• RESET (statement)
• RMDIR (statement)

S

• SEEK (function)
• SEEK (statement)

U

• UNLOCK (statement)

W

• WIDTH (statement)
• WRITE (file statement)

(Return to Table of Contents)

TCP/IP:

_C

• _CONNECTED (function)
• _CONNECTIONADDRESS (function)

_O

• _OPENCLIENT (function)
• _OPENCONNECTION (function)
• _OPENHOST (function)

C

• CLOSE (statement)

G

• GET (TCP/IP statement)

I

• INPUT (TCP/IP statement)

P

• PUT (TCP/IP statement)
• PRINT (TCP/IP statement)

(Return to Table of Contents)

Time, date and delay:

_D

• _DELAY

_L

• _LIMIT

D

• DATE$ (function)
• DATE$ (statement)

T

• TIME$ (function)
• TIME$ (statement)
• TIMER (function)

(Return to Table of Contents)

Error trapping:

_E

• _ERRORLINE (function)

E

• ERDEV (function)
• ERDEV$ (function)
• ERR (function)
• ERROR (error statement)
• ERL (function)

O

• ON ERROR (statement)

R

• RESUME (statement)

(Return to Table of Contents)

Memory handling:

C

• _CLIPBOARD (function)
• _CLIPBOARD (statement)

D

• DEF SEG (statement)
• $DYNAMIC (metacommand)

F

• FRE (function)

P

• PEEK (function)
• POKE (statement)

S

• SADD (function)
• SETMEM (function)
• STATIC (statement)
• $STATIC (metacommand)

V

• VARPTR (function)
• VARPTR$ (function)
• VARSEG (function)

(Return to Table of Contents)

Ports:

C

• COM (statement)

I

• INP (function)

O

• OPEN COM (statement)
• OUT (statement)

(Return to Table of Contents)

Converting, defining and dimensioning variables:

QB64 keywords:

_B

• _BIT
• _BYTE

_C

• _CV

_D

• _DEFINE

_F

• _FLOAT

_I

• _INTEGER64

_M

• _MK$

_P

• _PRESERVE (REDIM action)

_U

• _UNSIGNED

Qbasic keywords:

A

• ABS (function)
• AS (setting the variable type)
  • SINGLE
  • DOUBLE
  • INTEGER
  • LONG
  • STRING
  • _BIT
  • _BYTE
  • _INTEGER64
  • _FLOAT
• ASC (function)

B

• BASE

C

• CDBL (function)
• CDECL
• CHR$ (function)
• CINT (function)
• CLEAR (statement)
• CLNG (function)
• COMMON (statement)
• COMMON SHARED (statement)
• CONST (statement)
• CSNG (function)
• CVD (function)
• CVDMBF (function)
• CVI (function)
• CVL (function)
• CVS (function)
• CVSMBF (function)

D

• DEFDBL (statement)
• DEFINT (statement)
• DEFLNG (statement)
• DEFSNG (statement)
• DEFSTR (statement)
• DIM (statement)
• DOUBLE

H

• HEX$ (function)

I

• INT (function)
• INTEGER

L

• LBOUND (function)
• LOCAL
• LONG

M

• MKD$ (function)
• MKDMBF$ (function)
• MKI$ (function)
• MKL$ (function)
• MKS$ (function)
• MKSMBF$ (function)

O

• OCT$ (function)
• OPTION BASE (statement)

R

• REDIM (statement)

S

• SHARED (statement)
• SINGLE
• STR$ (function)
• STRING

T

• TYPE (statement)

V

• VAL (function)

(Return to Table of Contents)

Getting information about variables:

I

• INSTR (function)

L

• LBOUND (function)
• LEN (function)

M

• MID$ (function)

S

• SGN (function)

U

• UBOUND (function)

(Return to Table of Contents)

Setting/clearing variables and manipulating them:

_R

• _ROUND

A

• ASC (statement)

E

• ERASE (array statement)

L

• LCASE$ (function)
• LEFT$ (function)
• LET (statement)
• LSET (statement)
• LTRIM$ (function)

M

• MID$ (statement)

R

• RIGHT$ (function)
• RSET (statement)
• RTRIM$ (function)

S

• SPACE$ (function)
• SPC (function)
• STRING$ (function)
• SWAP (statement)

T

• TAB (function)

U

• UCASE$ (function)

(Return to Table of Contents)

Subs and functions, modules, libraries and external programs:

A

• ABSOLUTE (sub)
• ALIAS

B

• BYVAL

C

• CALL (statement)
• CALL ABSOLUTE (statement)
• CALLS (statement)
• CHAIN (statement)

D

• DECLARE (BASIC statement)
  • AS
    • ANY
    • INTEGER
    • LONG
    • SINGLE
    • DOUBLE
    • STRING
• DECLARE (non-BASIC statement)
• DEF FN (statement)

E

• END FUNCTION (statement)
• END SUB (statement)

F

• FUNCTION (statement)

G

• GOSUB (statement)

I

• $INCLUDE (metacommand)
• INTERRUPT (statement)

R

• RETURN (statement)
• RUN (statement)

S

• SHELL (statement)
• SUB (statement)

(Return to Table of Contents)

Mathematical Functions:

• _ROUND (QB64 function)

• + (addition operation)
• - (subtraction operation)
• * (multiplication operation)
• / (decimal point division operation)
• \ (integer division operation)
• ^ (exponential operation)
• ATN (function)
• CDBL (closest double rounding function)
• CINT (closest integer rounding function)
• CLNG (closest long integer rounding function)
• COS (function)
• CSNG (closest single rounding function)
• EXP (function)
• FIX (integer rounding function)
• INT (integer rounding function)
• LOG (function)
• MOD (integer remainder operation)
• SIN (function)
• SQR (function)
• TAN (function)

See also: Bit Logical Operations:

(Return to Table of Contents)

Bit Logical Operations:

• AND (operator)
• EQV (operator)
• IMP (operator)
• OR (operator)
• NOT (operator)
• XOR (operator)

(Return to Table of Contents)

Conditional Operations:

• AND (boolean)
• OR (boolean) (OR returns true if one or the other argument are true)
• XOR (boolean) (extended OR, only if either one argument or the other is true do XOR return true - not if both are true)

See also the category "Bit operations:" above (the operators can be used when comparing) but most importantly:

• XOR (XOR (boolean) explains the use when comparing values)
• NOT (reverses the condition, NOT a = 2 equals to a <> 2)

(Return to Table of Contents)

Data:

• DATA (statement)
• READ (statement)
• RESTORE (statement)

(Return to Table of Contents)

DOS/OS and Environment:

• _CLIPBOARD$ (statement)
• _CLIPBOARD$ (function)
• _DONTWAIT (SHELL action)
• _HIDE (SHELL action)
• _SCREENCLICK (simulates clicking the mouse at a position on the screen)
• _SCREENIMAGE (captures the current screen)
• _SCREENPRINT (simulates key presses)

• COMMAND$ (function)
• ENVIRON (statement)
• ENVIRON$ (function)
• SHELL (statement)

(Return to Table of Contents)

Printer:

• LPOS (function)
• LPRINT (statement)
• LPRINT USING (statement)
• _PRINTIMAGE

(Return to Table of Contents)

Unclassified:

• _ICON (statement) (set the icon of the program)
• _TITLE (statement) (set the title of the program)
• _EXIT (function) (checks for external close signals, like the [X] button and CTRL-Break)

• RANDOMIZE (statement) (randomize RND function output)
• REM (statement) (remark, you can also use ')
• RND (function) (retrieves a random number)
• SIGNAL (statement) (reserved for OS/2 protected mode systems)
• TO (statement) (multi-purpose statement to specify a range)

(Return to Table of Contents)

Symbols:

QB64 and QB Symbols: [Note: All symbols below can also be used inside of literal strings except for quotation marks!]

Print or file Formatting

•  ; (Semicolon after a PRINT stops the invisible cursor at end of the printed value.)
• , (Comma after a PRINT tabs the invisible cursor past the end of the printed value.)

Program Code Markers

• ' (Apostrophe denotes programmer comment, ignore code line or Metacommand. Same as using REM.)
• , (SUB or FUNCTION parameter separator. DATA value separator)
•  : (Colons can be used to separate two statements on one code line.)
• () (math or conditional procedure order, a SUB or FUNCTION parameter holder or pass by value indicator)
• $ (prefix denotes a Qbasic Metacommand. REM or ' precede the commands)

(Return to Table of Contents)

Variable Name Type Suffixes

• $ (STRING character type: 1 byte)
• ~ (_UNSIGNED numerical type when it precedes the 8 numerical suffixes below:) [QB64]
•  % (INTEGER numerical type: 2 bytes)
• & (LONG numerical type: 4 bytes)
• && (_INTEGER64 numerical type: 8 bytes) [QB64] (32 or 64 bit PC only)
•  ! (SINGLE numerical type: 4 bytes)
• # (DOUBLE numerical type: 8 bytes)
• ## (_FLOAT numerical type: 32 bytes) [QB64]
• ` (_BIT numerical type: 1 bit.) [QB64] (Key below tilde(~): CHR$(96))
• %% (_BYTE numerical type: 1 byte) [QB64]

(Return to Table of Contents)

Numerical Base Prefixes

• &B (Binary base 2 Digits 0 or 1) [QB64]
• &O (Octal base 8 Digits 0 to 7)
• &H (Hexadecimal base 16: Digits 0 to F)

Mathematical Operations

• + (Addition operator)
• - (Subtraction operator or sign)
• * (Multiplication operator)
• / (Normal division operator)
• \ (Long integer division operator)
• ^ (Exponential operator)
• MOD (Integer remainder division)

Relational Operations

• = (Equal to condition)
• > (Greater than condition)
• < (Less than condition)
• <> (Not equal to condition)
• >= (Greater than or equal to condition)
• <= (Less than or equal to condition)

(Return to Table of Contents)

References:

(Go to Alphabetical keywords)

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